VII. Description of genetic stocks in the Barley Genetic Stock Center at Fort Collins, Colorado.

The collection of genetic stocks in the Barley Genetic Stock Center has grown so large as to warrant revision of procedures for maintaining germplasm and information. As a part of the revision, a description of all mutants that have been assigned gene symbols will be prepared. These descriptions will be published in the Barley Genetics Newsletter and will serve as the official list of gene symbols. At the time of publication of the description, seed stocks of the locus will be assigned Barley Genetic Stock (BGS) numbers. The BGS number will serve to identify a particular genetic stock. Seed stocks will be grown, stored and distributed according to their BGS number.

Descriptions of new mutants will be prepared when requesting a gene symbol. At the time of assignment of a gene symbol, the mutant stock will be assigned a BGS number.

Descriptions are being prepared to allow for periodic revision as more information becomes available.

Descriptions of some of the genetic stocks are included in this issue of the Barley Genetics Newsletter. We hope to have most of the rest prepared for the next issue. We thank those who have helped prepare the descriptions and would welcome help in preparing descriptions for inclusion in future issues of the Barley Genetics Newsletter. Also, we would appreciate comments and suggestions concerning the format used for the descriptions.

In the preparation of the description of each mutant stock the writers used the information that was available to them from literature or observation. There are probably some errors or mistakes. The writers will appreciate receiving comments, suggestions, or a revised version for part or all of description of any mutant stock.

C. R. Burnham, Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, Minnesota, 55101.

R. F. Eslick, Department of Plant and Soil Science, Montana State University, Bozeman, Montana, 59715.

T. E. Haus, Department of Agronomy, Colorado State University, Fort Collins, Colorado, 80521.

E. A. Hockett, Research Geneticist, Plant Science Division, ARS, U.S.D.A., and Department of Plant and Soil Science, Montana State University, Bozeman, Montana, 59715.

A. J. Jarvi, Department of Plant and Soil Science, Montana State University, Bozeman, Montana, 59715.

W. L. McProud, Department of Plant and Soil Science, Montana State University, Bozeman, Montana, 59715.

T. Tsuchiya, Department of Agronomy, Colorado State University, Fort Collins, Colorado, 80521.
 
 

BGS 0001    Brachytic plant    br

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1,2). Located on chromosome 1 (2).

Description: Brachytic or semi-dwarf type mutant was selected by L. J. Stadler and gene symbol br was given by Powers (1). A shortened plant with short leaves, short awns, and short internodes. It is distinct enough to be easily classified and equal in viability to the normal (2).

Origin of mutant: Spontaneous mutation in the cultivar Himalaya (1,2).

Mutational events: br in Himalaya (1,2).

Mutant used for description and seed stock: br in Himalaya.    n v k b R

References:
1. Powers, LeRoy. 1936. Genetics 21:398-420.
2. Swenson, S. P. 1940. Jour. Agr. Res. 60:687-713.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0002    Chlorina seedling    f_c

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Chromosomal location on chromosome 1 (2).

Description: Bright yellow leaves with green tips at the seedling stage. All new leaves show yellow base and green tips. As plant grows the leaf color changes to green. Plants grow vigorously.

Origin of mutant: Spontaneous mutation in the cultivar Colsess (1).

Mutational events: f_c in Colsess V (1).

Mutant used for description and seed stock: f_c in Colsess V.    N v K b R s.

References
1. Robertson, D. W. and G. W. Deming. 1930. J. Hered. 21:283-288.
2. Robertson, D. W., G. W. Deming and D. Koonce. 1932. Jour Agr. Res. 44:445-466.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0003    Virescent seedling     y_c

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 1 (2).

Description: The homozygous recessive does not grow to maturity (seedling lethal). The seedling comes up white with a very marked green tip which remains green. The amount of green on the second leaf is very small or lacking entirely. The seedling seldom survives farther than this stage (1).

Origin of mutant: Spontaneous mutation in the cultivar Coast (1).

Mutational events: y_c in Coast III (1).

Mutant used for description and seed stock: y_c in Coast III

References:
1. Robertson, D. W. and G. W. Deming. 1930. J. Hered. 21:283-288.
2. Robertson, D. W., G. W. Deming, and D. Koonce. 1932. J. Agr. Res. 44:445-466.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0004    Albino seedling    a_c2

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (2). Located on chromosome 1 (1).

Description: White seedlings (1, 2).

Origin of mutant: Spontaneous mutation in the cultivar Coast (2).

Mutational events: a_c2 in Coast II (2).

Mutant used for description and seed stock: a_c2 in Coast II.    N v k b R.

References:
1. Robertson, D. W. 1937. Genetics 22:443-451.
2. Robertson, D. W. and G. W. Deming. 1930. J. Hered. 21:283-288.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0005    Chlorina 8      f8

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 1 (1).

Description: In the seedling stage at 70°F the plants are Scheele's Green (Ridgeway, 112. Plate VI i). The plant remains chlorina until ripening (1).

Origin of mutant: Spontaneous mutation in the cultivar Comfort (1).

Mutational events: f8 in Comfort II (1).

Mutant used for description and seed stock: f8 in Comfort II.    N v k b r S

References:
1. Robertson, D. W. 1967. Can. J. Genet. Cytol. 9:321-326.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0006   Covered caryopsis    N

Previous nomenclature and gene symbolization: Covered vs. naked caryopsis (Hh). Covered vs. naked caryopsis (Ss).

Inheritance: Monofactorial dominant to naked caryopsis was proved by many workers (1,2). Located on chromosome 1 (1,2).

Description: The lemma and palea do adhere to the caryopsis. This character is stable under all environmental conditions.

Origin of mutant: Natural occurrence in many cultivars (3).

Mutational events: N in many cultivars (3).

Mutant used for description and seed stock: N in Trebi. Any standard cultivar having covered caryopsis can be used.

References:
1. Robertson, D. W. 1937. Genetics 22:443-451.
2. Robertson, D. W., G. A. Wiebe and R. G. Shands. 1941. Jour. Amer. Soc. Agron. 33:47-64.
3. Wiebe, G. A. and D. A. Reid. 1961. U. S. Dept. Agr. Tech. Bull. 1224. 234 pp., illust.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0007   Naked Caryopsis    n

Previous nomenclature and gene symbolization: Covered vs. naked caryopsis (Hh). Covered vs. naked caryopsis (Ss).

Inheritance: Monofactorial recessive to covered caryopsis was proved by many workers (1,2). Located on chromosome 1 (1,2).

Description: Lemma and palea do not adhere to the caryopsis. This character is stable under all environmental conditions (3).

Origin of mutant: Natural occurrence in many cultivars (3).

Mutational events: n in many cultivars (3).

Mutant used for description and seed stock: n in Himalaya.    n v k b S.   Any standard cultivar having naked caryopsis can be used.

References:
1. Robertson, D. W. 1937. Genetics 22:443-451.
2. Robertson, D. W. , G. A. Wiebe and R. G. Shands. 1941. Jour. Amer. Soc Agron. 33:47-64.
3. Wiebe, G. A. and D. A. Reid. 1961. U. S. Dept. Agr. Tech. Bull. 1224, 234 pp., illust.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0051    Rattail spike    rt

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 2 (1).

Description: The heads are highly modified and sterile. The lateral florets contain no kernels but are composed of bracts similar to very short glumes. The central spikelets have similar bracts. Because of complete sterility of the homozygous recessive the stock must be maintained in the heterozygous condition (1).

Origin of mutant: Spontaneous mutation in Goldfoil (C.I. 1866) (1).

Mutational events: rt in Goldfoil (C.I. 1866) (1).

Mutant used for description and seed stock: rt in Goldfoil.   N V k b.

References:

1. Robertson, D. W. 1967. Crop Sci. 7:41-42.
2. Robertson, D. W., G. A. Wiebe and R. G. Shands. 1947. Jour. Amer. Soc. Agron. 39:464-473.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0052   Orange seedling    or

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 2 (1).

Description: The normal color of the orange seedling in the field (low temperature) is "apricot yellow" (Ridgeway, Plate IV, 1912). They respond to high temperatures and may be grown to maturity under the proper environment (1,2). The yellow plant color is stable up to near maturity (2).

Origin of mutant: Spontaneous mutation in the cultivar Trebi (2).

Mutational events: or in Trebi IV (2).

Mutant used for description and seed stock: or in Trebi IV.    N v k b R s.

References:
1. Robertson, D. W. and O. H. Coleman. 1940. Jour. Genet. 39:401-410.
2. Tsuchiya, T. 1971. Barley Genetics Newsletter 1:00-00.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0053   Albino seedling    a2

Previous nomenclature and gene symbolization: Normal vs. albino seedling A₁a₁ (1). Normal vs. albino seedling A2 a2 (2).

Inheritance: Monofactorial recessive (1). Located on chromosome 2 (2).

Description: White seedling, homozygous lethal (1).

Origin of mutant: a2 in unknown cultivar (1).

Mutational events: a2 in Albino 2.

Mutant used for description and seed stock: a2 in Albino 2.    N V k b R s.

References:
1. Nilsson-Ehle, H. 1922. Hereditas 3:191-199.
2. Robertson, D. W. 1967. Crop Sci. 7:41-42.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0054    yellow seedling    y_x

Previous nomenclature and gene symbolization: Normal vs. xantha (yellow) seedling Yy^x (1). Normal vs. yellow seedling Y_xy_x (2)

Inheritance: Monofactorial recessive (1). Allelic to virescent (y) in Minn.72-8 (1). Located on chromosome 2 (1).

Description: The seedling shows yellow color (Ridgeway, 1912, Plate XXXI). The mutant is seedling lethal.

Origin of mutant: Spontaneous mutation in the cultivar Faust (1).

Mutational events: y_x in Faust I (1).

Mutant used for description and seed stock: y_x in Faust I.   n v K b

References:
1. Robertson, D. W., and O. H. Coleman. 1942. J. Amer. Soc. Agron. 34:1028-1034.
2. Robertson, D. W. 1971. Barley Genetics II:220-242.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0055   Chlorina seedling    f

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (2). Chromosomal location on chromosome 2 (1,3,4).

Description: Pale green chlorophyll-deficient type mutant (3). At the early seedling stage the leaves are yellow green with green tips. Old leaves gradually change to green color. The plants grow to maturity, but are somewhat stunted in the field.

Origin of mutant: Spontaneous mutation in the cultivar Golden (2).

Mutational events: f in Golden (2).

Mutant used for description and seed stock: f in Minn 84-7.    N V k b R S.

References:
1. Hallqvist, C. 1926. Hereditas 8:229-254.
2. Nilson-Ehle, H. 1913. Zeits. induk. Abst. Vererbgslehre 9:289-300.
3. Nilson-Ehle, H. 1922. Hereditas 3:191-199.
4. Robertson, D. W., G. W. Deming and D. Koonce. 1932. Jour. Agr. Res. 44:445-466.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0056   White streak 4    wst4

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 2 (1).

Description: Character expression is affected by growing temperature (low temperature type). The mutants grown at low temperature exhibit wide and numerous streaks on developing leaves, becoming almost albinic or chlorotic. As the temperature rises they develop green leaves with only a few white streaks. Exposure to 3°C for about two weeks immediately after sowing seeds is enough to induce distinct streaks on the first and second leaves of the mutant (1).

Origin of mutants: Spontaneous mutation in the cultivar Kanyo 7 (1).

Mutational events: wst4 in Kanyo 7 (1).

Mutant used for description and seed stock: wst4 in Kanyo 7.   N v k b S.

References:
1. Takahashi, R. and I. Moriya. 1969. Ber. Ohara Inst. landw. Biol. 15:35-46.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0057    Reduced internode number    rin

Previous nomenclature and gene symbolization: Low number of rachis internode s (3). Number of rachis internode Rin rin (1).

Inheritance: Monofactorial recessive (2,3,4). Located on chromosome 2 (2,4).

Description: Number of rachis internodes in the cultivar Triple Bearded Club Mariout (C.I. 2523) was 12 to 20 with the mean number of 15.3, while in the cultivar Spartan it was 18 to 28 with the mean of 22.9 (2).

Origin of mutant: Natural phenotype of the cultivar Club Mariout (2).

Mutational events: rin in Club Mariout (2).

Mutant used for description and seed stock: rin in Triple Bearded Club Mariout.    N v k b R.  No stock of Tavcar's mutant is available.

References:
1. Robertson, D. W., G. A. Wiebe and F. R. Immer. 1941. J. Amer. Soc. Agron. 33:47-64.
2. Swenson, S. P. and D. G. Wells. 1944. J. Amer. Soc. Agron. 36:429-435.
3. Tavcar, A. 1936. Arch minist. polyopr. Somotra naucn. Poljopr. rad. 3:30-50.
4. Tavcar, A. 1938. Zeits. induk. Abst. Vererbungslehre 75:106-123.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0058    Reduced lateral spikelet appendage on the lemma    lr

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1,2). Located on chromosome 2 (2).

Description: Long awns on the central spikelets and awn-like appendages on the lateral spikelets (1). Lateral spikelets are completely fertile. The lemmas of the central spikelets are long-awned, while those of the lateral spikelets are awn-less (2).

Origin of mutant: Spontaneous occurrence in H. intermedium Nudihaxtoni (C.I. 2213).

Mutation events: lr in H. intermedium Nudihaxtoni (C.I. 2213).

Mutant used for description and seed stock: lr in H. intermedium Nudihaxtoni (C.I. 2213). n v k b R S.

References:
1. Glinyany, N. P. 1937. Bull. Appl. Bot., Genet. and Plant Breed., Series II, 7:355-376.
2. Leonard, W. H. 1942. J. Amer. Soc. Agron. 34:211-221.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0059   Grandpa      gp

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 2 (3). gp2 was said to be located on chromosome 6 (6). Later gp2 was found to be allelic to gp (3,5) and located on the long arm of chromosome 2 (5).

Description: Grandpa has no chlorophyll in awns or glumes, the head being white (2). Seedling homozygous for gp displays a pattern of transverse white bands alternating with green bands on the first, second and occasionally the third, foliage leaves. Later in development, at the time of heading, grandpa plants produce an albino flag or terminal leaf, peduncle and spike (4).

Origin of mutant: Spontaneous mutation in the cultivar Lyallpur (gp) by G. A. Wiebe (2). Radiation treatment in the cultivar Montcalm (gp2) (6).

Mutational events: gp in Lyallpur (2). gp2 in Montcalm (6).

Mutant used for description and seed stock: gp2 in Montcalm.   N v k b r S.    gp in Lyallpur. N v k b R

References:
1. Immer, F. R. and M. T. Henderson. 1943. Genetics 28:419-440.
2. Martini, M. L. and H. V. Harlan. 1942. J. Hered.  33:339-343.
3. Matchett, R. W. 1968. Ph.D. Thesis. Colorado State Univ. Ft. Collins, Colorado, 123 pp. typed.
4. Matchett, R. W., B. M. Pollock and D. W. Robertson. 1968. J. Hered. 59:279-282.
5. Tsuchiya, T. 1971. Barley Genetics Newsletter 1:00-00
6. Walker, G. W. R., J. Dietrich, R. Miller, and K. J. Kasha. 1963.    Can. J. Genet. Cytol. 5:200-219.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0060   Liguleless    li

Previous nomenclature and gene symbolization: Normal vs. liguleless, A1 a1 (2). Normal vs. liguleless, Li li (1).

Inheritance: Monofactorial recessive (2). Located on chromosome 2 (2).

Description:  Complete deficiens of ligule and auricle on all leaves, and easily distinguished from the normal at any stage of the plant growth. The leaf blades always stand erect along the stem (2).

Origin of mutant: Spontaneous mutation in unknown cultivar. Mutant was described as Muyoji which means liguleless.

Mutational events: li in Muyoji (Liguleless).

Mutant used for description and seed stock: li Muyoji (Liguleless).    N v k b R.

References:
1. Robertson, D. W., G. A. Wiebe and R. G. Shands. 1955. Agron. J. 47:418-425.
2. Takahashi, R., J. Yamamoto, S. Yasuda and Y. Itano. 1953. Ber. Ohara Inst. landw. Forsch. 10:29-52.

Prepared:  T. Tsuchiya and T. E. Haus 1970.
 

BGS 0061  Triple awned lemma    tr

Previous nomenclature and gene symbolization: Triple-bearded variation (2). Triple awned lemma (1).

Inheritance: Monofactorial recessive (1). Located on chromosome 2 (1).

Description:  Three awns on the lemma (2). Awns or hoods on lemma of central florets fork to produce one central long awn, or hood, and one or two shorter awns or hoods (1).

Origin of mutant: Spontaneous mutation in unknown cultivar (2).

Mutational events: tr

Mutant used for description and seed stock: tr (C.I. 6630).    n V k b R s.

References:
1. Immer, F. R. and M. T. Henderson. 1943. Genetics 28:419-440.
2. Martini, M. L. and H. V. Harlan. 1942. J. Hered. 33:338-343.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0062     Subjacent hood    sk

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive to long awn (1). Located on chromosome 2 (2).

Description: The head of this mutant is similar to that of the common hooded barley (K), but the central cup-like cavity of the lemma appendage or its modification is generally situated somewhat below the top of the lemma, with no lemma wing existing. It is also noted that there are no rudiments of a flower organ within the hood-like cavity (1,2). sk sk homozygote is epistatic to KK, in a sense that sk in homozygous condition exerts its effect in forming a subjacent hood or lowering the position of hood even in the presence of KK and Lk Lk genes (1).

Origin of mutant: Spontaneous (1).

Mutational events: sk in Tayeh 13 (1).

Mutant used for description and seed stock: sk in Tayeh 13.   N v S

References:
1. Takahashi, R., J. Hayashi and S. Yasuda. 1953. Ber. Ohara Inst. landw. Forsch. 10:29-52.
2. Takahashi, R. and J. Hayashi. 1966. Ber. Ohara Inst. landw. Biol. 13:185-198.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0101    Absent lower laterals    als

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 3 (1).

Description: Absence of lateral spikelets at the base of the spike. The tillers are usually large, coarse and stiff, and only rarely more than one or two produced by a plant. This mutant resembles uniculm (1).

Origin of mutant:  Cobalt⁶⁰ treatment in the cultivar Montcalm (1).

Mutational events:  als in Montcalm.

Mutant used for description and seed stock: als in Montcalm.   N v k b r S.

References:
1. Kasha, K. J. and G. W. R. Walker. 1960. Can. Jour. Genet Cytol. 2:397-415.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0102    Uzu or semi-brachytic    uz

Previous nomenclature and gene symbolization: None.

Inheritance:  Monofactorial recessive (1,2). Located on chromosome 3 (3).

Description:  The gene for dwarfness (uz) affects pleiotropically on coleoptile, first and flag leaf, spike, awn, culm, empty glume, axis of rachilla, and grain. The gene affects diminutively in their length and broadly in their width in different degree with different organs. This gene however has no influence on the weight of grains and the heading date. This mutant has not only quantitative difference from normal varieties but also diagnostic qualitative character. The coleoptile of uzu plants show prominent projection or hook at the portion near the apex. Sometimes the coleoptile of the mutant shows a V-shaped notch at the apex and on the opposite side of the projection. In this case, therefore, the apex of the coleoptile has two notches, one on each side (1).

Origin of mutant: Spontaneous mutation in many Japanese cultivars (1).

Mutational events: uz in many Japanese cultivars (1).

Mutant used for description and seed stock: uz in Baitori.    N v k b.

References:
1. Takahashi, R. 1942. Ber. Ohara Inst. landw. Forsch 9: 71-90.
2. Takahashi, R. 1951. Ber. Ohara Inst. landw. Forsch 9: 383-398.
3. Takahashi, R. and J. Yamamoto. 1951. Ber. Ohara Inst. landw. Forsch. 9: 399-410.

Prepared:  Tsuchiya and T. E. Haus 1970.
 

BGS 0103    White streak 3    wst3

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 3 (1).

Description: This mutant always develops, regardless of growing temperature, leaves with fine, narrow white streaks distributing rather uniformly all over. This mutant is characterized by a strange genetic behavior that white streaked plants always segregate about 13-14% of albino plants besides the characteristic white streaked plants (1).

Origin of mutant: X-ray treatment in the cultivar Akashinriki (1).

Mutational events: wst3 in Akashinriki (1).

Mutant used for description and seed stock: wst in Akashinriki.   n v uz k b S.

References:
1. Takahashi, R. and I. Moriya. 1969. Ber. Ohara Inst. landw. Biol. 15:35-46.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0104    Yellow streak    yst

Previous nomenclature and gene symbolization: Normal vs. yellow stripe, Ys ys (2). Normal vs. yellow streak, Yst yst (3).

Inheritance: Monofactorial recessive (1,2). Located on chromosome 3 (1,2).

Description: Longitudinal yellow stripes appear on the leaves of seedlings of this line and persist until the preripening stage. Among some crosses and under certain growing conditions the most heavily striped F2 plants fail to reach maturity. There appears to be no cytoplasmic component of inheritance (2).

Origin of mutant: DDT treatment in the cultivar Gateway (2).

Mutational events: yst in Gateway (2).

Mutant used for description and seed stock: yst in Gateway.   N v k b r s.

References:
1. Kasha, K. J. and C. R. Burnham. 1965. Can. J. Genet. Cytol. 7:62-77.
2. Kasha, K. J. and G. W. R. Walker. 1960. Can. J. Genet. Cytol. 2:397-415.
3. Robertson, D. W. 1971. Barley Genetics II: 220-242.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0105    Xantha seedling     x_c

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 3 (1).

Description: In the field the color is picric yellow (Ridgway, 1912, Plate IV). In the greenhouse the color is classified as Bright chalcedony yellow (Ridgway, 1912, Plate XVII). This character expression is modified by differences in temperature. Homozygous recessive may be grown up to maturity under certain growing conditions (1) .

Origin of mutant: Spontaneous mutation in the cultivar Colsess (1).

Mutational events: x_c in Colsess IV (1).

Mutant used for description and seed stock: x_c in Colsess IV.    N v K b R s.

References:
1. Robertson, D. W. 1929. Genetics 14:1-36.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0106   Albino seedling    a_c

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 3 (3).

Description: White seedling (1). Albino seedling (2).

Origin of mutant: Spontaneous mutation in the cultivar Colsess (1).

Mutational events: a_c in Colsess I (1).

Mutant used for description and seed stock: a_c in Colsess I.    N v K b R s.

References:
1. Robertson, D. W. 1929. Genetics 14:1-36.
2. Robertson, D. W., G. A. Wiebe and F. R. Immer. 1941. Jour. Amer. Soc. Agron. 33:47-64.
3. Takahashi, R. and J. Yamamoto. 1951. Berichte Ohara Inst. landw. Forsch. 9:399-410.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0107   White stripe   wst

Previous nomenclature and gene symbolization: Normal vs. white streak, Wst wst (1). Normal vs. white stripe, Wst wst (2).

Inheritance: Monofactorial recessive (1). Located on chromosome 3 (1).

Description: The mutant has narrow white stripes on the leaves from the seedling stage to near maturity. The mutants grow vigorously (1).

Origin of mutant: Spontaneous mutation in unknown cultivar (1).

Mutational events: wst

Mutant used for description and seed stock: wst (C.I. 11767).    n v k B R S.

References:
1. Robertson, D. W. 1967. Crop Sci. 7:41-42.
2. Robertson, D. W. 1971. Barley Genetics II: 220-242.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0108    Albino lemma     al

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 3 (1).

Description: Lemma and palea are mostly chlorophyll-less and white or ivory colored, but terminate into green tips with green awns. Characteristic discoloration at the basal parts of lower leaf sheath and stem nodes. Ligules and joints between sheath and blade are of white color.

Origin of mutant: Spontaneous occurrence in unknown cultivar and collected as Russian No. 82 (1).

Mutational events: al in Russian 82 (1).

Mutant used for description and seed stock: al in Russian 82.  N v k b R S.

References:
1. Takahashi, R. and J. Hayashi. 1959. Ber. Ohara Inst. landw. Biol. 11:132-140.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0109   Yellow streak 2    yst2

Previous nomenclature and gene symbolization: None.

Inheritance:  Monofactorial recessive (1). Located on chromosome 3 (1).

Description: This mutant is low-temperature yellow streak type. When grown at low temperature, the mutants show numerous wide yellow streaks on developing leaves. Exposure to 3°C for about two weeks immediately after sowing seeds induces distinct streaks on the first and second leaves of the mutant. As temperature rises, they develop green leaves with only a few yellow streaks (1).

Origin of mutant: Spontaneous mutation in F5 of Kuromugi 148 x Mensury C cross (K x M) (1).

Mutational events: yst2 in K x M (1).

Mutant used for description and seed stock: yst2 in K x M.    N v k b R.

References:
1. Takahashi, R. and I. Moriya. 1969. Ber. Ohara Inst. landw. Biol. 15:35-46.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0110    Lax spike    L_c

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial dominance (1,2). Located on chromosome 3 (1,2).

Description: Internode length varies in different varieties, different genetic backgrounds and different growing conditions (2,3). One strain (C.I. 6164) showed 4.3 - 5.6 mm compared to l_c (Club Mariout) with 2.9. - 3.6 mm (2).

Origin of mutant:  Natural phenotype in the cultivar C. I. 6164 (2) and other varieties and strains (1,3).

Mutational events:  L_c in C. I. 6164 (2) and other varieties and strains (1,3).

Mutant used for description and seetd stock:  L_c in C. I. 6164.   n V^t k B R S.

References:
1. Dick, P. L. and C. W. Schaller. 1961. Can. J. Genet. Cytol. 3:164-169.
2. Webster, O. J. 1950. Ph. D. thesis, Univ. Minnesota.
3. Wiebe, G. A. and D. A. Reid. 1961 U.S Dept. Agr. Tech. Bull. 1224, 234 pp., illust.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0111      Dense spike    l_c

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1,2). Located on chromosome 3 (1,2).

Description:  Internode length (spike density) is not stable character. Density measurements vary from spike to spike, year to year and place to place (2,3). Club Mariout showed 2.8 - 3.4 mm, 2.9 - 3.6 mm, 2.6 - 2.8 mm and so on in one experiment (2).

Origin of mutant: Natural phenotype of the cultivar Club Mariout (C.I. 261) (1,2) and other cultivars (3).

Mutational events: l_c in Club Mariout (C.I. 261) (1,2) and other varieties and strains (3).

Mutant used for description and seed stock: l_c in Club Mariout (C.I. 261).    N v K b R.

References:
1. Dick, P. L. and C. W. Schaller. 1961. Can. J. Genet. Cytol. 3:165-169.
2. Webster, O. J. 1950. Ph.D. Thesis, University of Minnesota.
3. Wiebe, G. A. and D. A. Reid. 1961. U. S. Dept. Agr. Tech. Bull. 1224, 234 pp. illust.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS    0112    Albino seedling   a_n

Previous nomenclature and gene symbolization: None.

Inheritance:  Monofactorial recessive (1). Located on chromosome 3 (1).

Description: White seedling (1). Albino seedling (2).

Origin of mutant: Spontaneous mutation in H. distichum nigrinudum (1).

Mutational events: a_n in H. distichum nigrinudum (1).

Mutant used for description and seed stock: a_n in H. distichum nigrinudum. n V k B R s.

References:
1. Robertson, D. W. 1937. Genetics 22:443-451.
2. Robertson, D. W., G. A. Wiebe, and F. R. Immer. 1941. Jour. Amer. Soc. Agron. 33:47-64.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0113    Xantha seedling

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 3 (1).

Description: The mutant has yellow seedling (Citron green, Ridgway, Plate 31) and the homozygous recessive was recorded as lethal (1).

Origin of mutant: Spontaneous mutation in the cultivar Smyrna (1).

Mutational events: x_s in Smyrna I (1).

Mutant used for description and seed stock: x_s in Smyrna I.   N V k b R S.

References:
1. Robertson, D. W. 1937. Genetics 22:443-451.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0114   Curly 2    cu2

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 3 (1).

Description: Lemmas and awns are extremely curly, the rachis is usually bent and most of the stem internodes also strongly curved. Leaves are generally severely twisted (1). Roots of this mutant are extremely curled compared to the straight roots of normal materials in germinating boxes (Tsuchiya).

Origin of mutant: Spontaneous mutatation in the cultivar Choshiro (1).

Mutational events: cu2 in Choshiro (1).

Mutant used for description and seed stock: cu2 in Choshiro-hen which means the mutant of Choshiro.  N v uz k b.

References:
1. Takahashi, R. and J. Hayashi. 1966. Ber. Ohara Inst. landw. Biol. 13:185-198.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0151  Chlorina    f9

Previous nomenclature and gene symbolization: Normal vs. chlorina F_kf_k (1). Normal vs. chlorina F9 f9 (2).

Inheritance: Monofactorial recessive (1). Located on chromosome 4 (1).

Description: Chlorina leaves from seedling to adult stage, irrespective of temperature conditions (1).

Origin of mutant: X-ray induced in the cultivar Ko A (1).

Mutational events: f9 in Ko A.

Mutant used for description and seed stock: f9 in Ko A.   N V k b R.

References:
1. Takahashi, R. et. al. 1968. Barley Newsletter 11:59.
2. Robertson, D. W. 1971. Barley Genetics II: 220-242.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0152    Hooded lemma    K

Previous nomenclature and gene symbolization: Hooded vs. awned lemma Aa (2). Hooded vs. awned lemma C₁c₁ (3). Hooded vs. awned lemma Hh (4).

Inheritance:  Monofactorial dominant to K^e and k (1). Located on chromosome 4 (5). Many erroneous linkages of Kk with genes on other chromosomes are reported in the literature.

Description: Hooded ("Kapuze") is characterized by an appendage to the lemma which develops as a trifurcate structure, consisting of a deformed floret at its center with two triangular leaf-like projections called lemma wings. The supernumary floret often contains stamens with fertile pollen grains and occasionally bear kernels within them (6).

Origin of mutant: Natural occurrence in many cultivars.

Mutational events: K in many cultivars K^e (elevated hood), spontaneous in unknown cultivar and named Chengehou 5. k (awned) in many cultivars.

Mutant used for description and seed stock: K in Colsess.   N v b R.

References
1. Tschermak, E. von. 1901. Zeit. f. d. Land Versuch. in Oest. 4:1029-1060.
2. Ubisch, G. von. 1921. Zeit. Induktive Abstamm. u. Verer. 25:198-210.
3. Miyake, K. and Imai, Y. 1922. Bot. Mag. Tokyo. 36:25-38.
4. Thatcher, L. E. 1936. U. S. Dept. Agr. Ybk. p.344.
5. Buckley, G. F. H. 1930. Sci. Dept. Agr. 10:460-492.
6.  Takahashi, R. et. al. 1953. Ohara Inst. Landw. Forsch. Ber. 10:29-52.

Prepared:  T. E. Haus and T. Tsuchiya 1970.
 

BGS 0153   Elevated hood    K^e

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial gene. Allelic and recessive to K, allelic and slightly dominant to k (1). Located on chromosome 4 (1).

Description: The lemma appendage controlled by this allele is elevated on an awn 1-2 cm. long or longer. Lemma wings are much reduced in size (compared to K) and the supernumerary floret involves a mere spur of floral organs within it (1).

Origin of mutant: K^e in unknown cultivar and named Chengehou 5.

Mutational events: K^e in unknown cultivar. K in many cultivars. k in many cultivars.

Mutant used for description and seed stock: K^e in Chengehou 5.   N v b.

References:
1. Takahashi, R. et. al. 1953. Ohara Inst. Landw. Forsch. Ber. 10:29-52.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0154   Awned lemma    k

Previous nomenclature and gene symbolization: Hooded vs. awned lemma Aa (2). Hooded vs. awned lemma C₁c₁(3). Hooded vs. awned lemma Hh (4).

Inheritance: Monofactorial recessive to K and K^e (1). Located on chromosome 4 (5). Many erroneous linkages of Kk with genes on other chromosomes are reported in the literature.

Description: Lemma terminates in a long slender structure, the length being controlled by many major genes and modifying factors.

Origin of mutant: k in many cultivars.

Mutational events: k in many cultivars. K in many cultivars. K^e, spontaneous in unknown cultivar and named Chengchou 5.

Mutant used for description and seed stock: k in Coast.   N v k b R s. Any of the long awned varieties can be used as the marker gene stock. Some short awned varieties should not be used. The plant with such genotype as KK lk2 lk2 will not show hooded character because of the action of lk2 gene.

References:
1. Tschermak, E. von. 1901. Zeit. f. d. Lnad. Versuch. in Oest. 4:1029-1060.
2. Ubisch, G. von. 1921. Zeit. Induktive Abstamm. u. Verer. 25:198-210.
3. Miyake, K. and Imai, Y. 1922. Bot. Mag. Tokyo. 36:25-38.
4. Thatcher, L. E. 1936. U. S. Dept. Agr. Ubk. p.344.
5. Buckley, G. F. H. 1930. Sci. Agr. 10:460-492.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0155    Glossy seedling (leaf)     gl

Previous nomenclature and gene symbolization: wl (?)

Inheritance: Monofactorial recessive (1). Located on chromosome 4 (1).

Description: Seedlings glossy, fully viable (1). Leaf blades lack wax coating and have shiny or glossy appearance. All other plant parts have normal wax coating.

Origin of mutant: X-ray treatment (1,2) in the cultivar Himalaya.

Mutational events: gl (1,2) in Himalaya.

Mutant used for description and seed stock: gl in Himalaya (1,2)    n v k b R S

References:
1. Immer, F. R. and M. T. Henderson. 1943. Genetics 28:419-440.
2. Stadler, L. J. (1930). Personal communication from E. R. Sears to D. W. Robertson (1938).
3. Robertson, D. W., G. A. Wiebe and F. R. Immer. 1941. Jour Amer. Soc. Agron. 33:47-64.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0156   Long weak basal rachis internode 2     lb2

Previous nomenclature and gene symbolization:  None

Inheritance: Monofactorial recessive (1). Located on chromosome 4 (1).

Description: Marked elongation and weakness of the basal rachis internode of the spike. In some plants this region is four or five inches long. The spikes hang vertically downwards from the collar (base of the last stem node) on emergence from the sheath and are frequently broken off close to this region by the wind. Even when not broken off they show a high degree of sterility and contain poorly filled kernels (1).

Origin of mutant: Cobalt⁶⁰ treatment in the cultivar Montcalm (1).

Mutational events: lb2 in Moncalm (1).

Mutant used for description and seed stock: lb2 in Montcalm.    N v k b r S.

References:
1. Kasha, K. J. and G.W.R. Walker. 1960. Can. J. Genet. Cytol. 2:397-415.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0157    Brachytic 2    br2

Previous nomenclature and gene symbolization:  None.

Inheritance: Monofactorial recessive (2). Located on chromosome 4 (1).

Description: Plant height, length of stem, leaf, spike, awn, kernel, glume and glume awn, rachilla and coleoptile are all shorter than the original variety, Svanhals. Auricles develop well and larger than those in the original variety (2).

Origin of mutant: X-ray treatment in the cultivar Svanhals (2).

Mutational events: br2 in Svanhals (2).

Mutant used for description and seed stock: br2 in Svanhals.    N V k b R.

References:
1. Takahashi, R., J. Hayashi and I. Moriya. 1971. Barley Genetics Newsletter 1:00-00.
2. Tsuchiya, T. 1962. Seiken Ziho 14:21-34.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0158    Yellow head    yh

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 4 (2).

Description: Whitish lower leaf sheaths, ivory-colored stem nodes and rachis internodes are characteristic of this mutant. Lemmas and leaves turn to yellow soon after anthesis (1).

Origin of mutant: Spontaneous mutation in unknown cultivar (1).

Mutational events: yh in Kimugi (1).

Mutant used for description and seed stock: yh in Kimugi (1).    N v k b R.

References:
1. Takahashi, R., J. Hayashi and S. Yasuda. 1957. Nogaku Kenkyu (Agron. Res.) 45:1-10.
2. Takahashi, R. and J. Hayashi. 1966. Ber. Ohara Inst. landw. Biol. 13:185-198.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0159    Glossy seedling 2    gl2

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 4 (1).

Description: Seedlings glossy, fully viable (1). From seedling stage to near maturity leaves have shiny or glossy appearance, because of lack of wax coating on leaf blades.

Origin of mutant: X-ray treatment in the cultivar Himalaya (1).

Mutational events: gl2 in Himalaya.

Mutant used for description and seed stock: gl2 in Himalaya.   n v k b R s.

References
1. Robertson, D. W. and 0. H. Coleman. 1942. J. Amer. Soc. Agron. 34:1028-1034.
2. Stadler, L. J. (1930.) Personal communication from E. R. Sears to D. W. Robertson (1938).

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0201    Chlorina 7    f7

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 5 (1).

Description: In the greenhouse at 70°F the seedlings are light Bice Green (Ridgeway, 1912. Plate XVII i ). The plants remain light green until near maturity (1).

Origin of mutant: Spontaneous mutation in the cultivar Smyrna (1).

Mutational events: f7 in Smyrna II.

Mutant used for description and seed stock: f7 in Smyrna II. n V k b R s.

References:
1. Robertson, D. W. 1967. Can. J. Genet. Cytol. 9: 321-326.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0202   Third outer glume    trd

Previous nomenclature and gene symbolization: Normal vs. third glume, Tt (1). Normal vs. bracteate (3).

Inheritance: Monofactorial recessive (1,2,3,4). Located on chromosome 5 (1,2,4).

Description: Spikelets of the mutant form were bracted in a remarkably similar way to those of Ivanova's material (2). Characteristic trait of this mutant is the presence of a bract or a so-called third outer glume outside the two empty glumes of each central floret. Size of the lowest bract is always the largest, embracing in some cases about one half of the very compact and short head, and it becomes smaller toward the top of the head (4). Allelic tests among these trd mutants have not been made. The linkage value between trd locus and B locus was very similar to one another (1,2,4). It was assumed therefore that these three similar type mutants may had occurred reccurrently by the same mutation at three different places (2,4). Takahashi et. al. (4) assumed that the material used by them may be the same as the one used by Miyake and Imai (3).

Origin of mutant: trd Spontaneous mutation in H. vulgare var. afghanicum (1). Spontaneous mutation in the cultivar Valki, C.I. 5478 (2). Spontaneous occurrence (3,4).

Mutational events: trd in H. vulgare var. afghanicum (1,5; cf 4). trd in Valki, C.I. 5478 (2). trd in Japanese cultivar (3,4).

Mutant used for description and seed stock: trd in Valki.   N V k b.

References:
1. Ivanova, K.V. 1937. Bull. Appl. Bot, Genet. and Plant Breed., Series II, Genet., Pl. Breed,and Cytol. 7:339-353.
2. Konzak, D.F. 1953. J. Hered. 44:103-104.
3. Miyake, K. and Y. Imai. 1922. Bot. Mag. Tokyo. 36:25-38.
4. Takahashi, R.,J. Yamamoto, S. Yasuda and Y. Itamo. 1953. Ber. Ohara Inst. landw. Forsch 10:29-52.
5. Vavilov, N.I. and D.D. Buchinich. 1929. Bull. Appl. Bot. Genet. and Plant Breed. Suppl. 33.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0203    Black lemma and pericarp    B

Previous nomenclature and gene symbolization: Black vs. white pericarp Bk bk (?).

Inheritance: Black is a simple Mendelian dominant over the white character (2 and many others ). Later Woodward (3; found a multiple allelic series at this locus (B, B^mb, B^g, b) and found B is dominant to each of the other genes. Definite linkage with A_ta_t on chromosome 5 was found by Robertson (1).

Description: Black lemma and pericarp Stems and part of the leaves also show black color to some extent. According to Woodward (3) black color is relatively stable in most varieties or strains and uniform for color intensity. This is characterized by its extreme black pigmentation in the flowering glumes, pericarp, and awns (3).

Origin of mutant: Natural occurrence in several cultivars.

Mutational events: B in several cultivars and varieties.

Mutant used for description and seed stock: B in Nigrinudum.   n V k R s.

References:
1. Robertson, D. W. 1929. Genetics 14:1-36.
2. Tschermak, E. v. 1901. Zts. landw. Versuchsw. Oesterr., 1901: 1029-1060 (from Matsuwra, H. 1929. A bibiographical monograph on plant genetics (Gene analysis) 1900-1925. 499 pp. Sapporo, Japan).
3. Woodward, R. W. 1941. Jour. Agr. Res. 63:21-28

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0204   Medium black lemma and pericarp     B^mb

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial gene. One of the multiple allelic sebries of melaninlike pigment in lemma and pericarp (B, B^mb, B^g, b). B^mb is recessive to B and dominant to B^g and b (1). Automatically located on chromosome 5 (1).

Description: Medium black shows less pigmentation than black (B). The lateral florets are generally light-colored in the two-rowed and intermediate segregrates found in this group.

Origin of mutant: Spontaneous in unknown cultivar and designated C.I. 2970.

Mutational ebvents: B^mb in C.I. 2970.

Mutant used bfor description and seed stock: B^mb in C.I. 2970.   N V k R. S.

References:
1. Woodward, R. W. 1941. Jour. Agr. Res. 63:21-28.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0205   Gray lemma and karyopses   B^g

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial factor. One of the multiple allelic series of melaninlike pigment in the glumes and karyopses (B, B^mb, B^g, b). B^g is recessive to B and B^mb, and dominant over b (1). B^g is allelic to B, this gene is automatically located on chromosome 5 (1).

Description: Lemma and pericarp show gray (lighter black) color. This group generally shows sufficient contrast to the other groups to be easily identified (1).

Origin of mutant: Spontaneous in the cultivar Blackhull, C. I. 878.

Mutational events: B^g in the cultivar Blackhull (C. I. 878).

Mutant used for description and seed stock: B^g in selection from Blackhull (C. I. 878) for description (1). B^g in selection from Black Smyrna (C. I. 191) for stock.   N v k S.

References:
1. Woodward, R. W. 1941. Jour. Agr. Res. 63:21-28.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0206    White lemma and pericarp    b

Previous nomenclature and gene symbolization: Black vs. white pericarp Bk bk (?)

Inheritance: Monofactorial recessive to B, B^mb, B^g (2,3). Located on chromosome 5 (1).

Description: White lemma and pericarp of many cultivars (4).

Origin of mutant: Natural phenotype in many cultivars (4).

Mutational events: b in many cultivars (4).

Mutant used for description and seed stock: b in Himalaya. Any of the cultivars with white lemma and pericarp can be used as the marker stock.

References:
1. Robertson, D. W. 1929. Genetics 14:1-36.
2. Tschermak, E. v. 1901. Zts. landw. Versuchsw. Oesterr., 1901:1029-1060 (from Matsuura, H. 1929. A bibliographical monograph on plant genetics (gene analysis) 1900-1925, 499 pp., Sapporo, Japan).
3. Woodward, R. W. 1941. Jour. Agr. Res. 63:21-28.
4. Wiebe, G. A. and D. A. Reid. 1961. U.S.D.A. Tech. Bull. 1224, 234 pp., illus.

Prepared:  T. Tsuchiya and T. E. Haus 1970.
 

BGS 0207   Albino seedling    a_t

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 5 (1).

Description: White seedling (1). Albino seedling (2).

Origin of mutant: Spontaneous mutation in the cultivar Trebi.

Mutational events: a_t in Trebi I.

Mutant used for description and seed stock: a_t in Trebi I.   N v k b R s.

References:
1. Robertson, D. W. 1929. Genetics 14:1-36.
2. Robertson, D. W., G. A. Wiebe, and F. R. Immer. 1941. Jour. Amer. Soc. Agron. 33:47-64.

Prepared: T.E. Haus and T. Tsuchiya 1970.
 

BGS 0208   Fragile stem 2    fs2

Previous nomenclature and gene symbolization: None.

Inheritance:  Monofactorial recessive (2,3). Located on chromosome 3 (3). Later it was proven that fs2 is located on chromosome 5 (1).

Description: The characteristics of this mutant were similar to fs of Kamairazu (2). At later stages of growth the stems and leaves are very fragile, and easily broken when slightly bent (3).

Origin of mutant: Spontaneous mutation in the cultivar Oshichi (1,3).

Mutational events: fs2 in Oshichi (1,3).

Mutant used for description and seed stock: fs2 in Oshichi-hen.   n v k b R uz

References:
1. Takahashi, R. and J. Hayashi. 1966. Ber. Ohara Inst. landw. Biol. 13:199-212.
2. Takahashi, R., J. Yamamoto, S. Yasuda and Y. Itano. 1953. Ber. Ohara Inst. landw. Forsch. 10:29-52.
3. Walker, G. W. R., J. Dietrich, R. Miller and K.J. Kasha. 1963. Can. J. Genet. Cytol. 5:200-219.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0251    Multiflorous 2    mul 2

Previous nomenclature and gene symbolization: Normal vs. multiflorous 2 Mlt2 mlt2 (2). Normal vs. multiflorous 2 Mu12 mul2 (1).

Inheritance: Monofactorial recessive (2). Located on chromosome 6 (2).

Description: Spikelets with supernumerary florets and occasionally nodal branches appear at random on the spike. The character shows variable expressivity in some crosses, and is seen in only a few of the spikes of an affected F2 plant (2).

Origin of mutant: Betatron treatment in the cultivar Montcalm (2).

Mutational events: mul2 in Montcalm (2).

Mutant used for description and seed stock: mul2 in Montcalm.   N v k b r S

References:
1. Robertson, D. W. 1963. Barley Genetics I: 159-180.
2. Walker, G. W. R., J. Dietrich, R. Miller, and K. J. Kasha. 1963. Can. J. Genet. Cytol. 5:200-219.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0252    Early heading    ea7

Previous nomenclature and symbolization: Normal vs. early heading Ec ec (1).

Inheritance: Monofactorial recessive (1). Located on chromosome 6 (1).

Description: When fall seeded in California, mutant plants bloom about 4 weeks before California Mariout, produce relatively few tillers, are fine stemmed and are shorter than California Mariout. Differences are less pronounced in summer seedings (1).

Origin of mutant: Spontaneous occurrence in a sixth backcross of California Mariout x male sterile Club Mariout (1).

Mutational events: ea7 in BC California Mariout (1).

Mutant used for description and seed stock: ea7 in BC California Mariout.   N v k b R

References:
1. Ramage, R. T., and C. A. Suneson. 1958. Agron. J. 50:114.

Prepared: C. R. Burnham 1970.
 

BGS 0253    Uniculm 2    uc2

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 6 (1).

Description: Plants usually have but a single culm (stem). Stems are much greater in diameter than normal. Plants are usually taller than normal.

Origin of mutant:  Thermal neutron induced in the cultivar Kindred (1).

Mutational event: uc2 in Kindred (1).

Mutant used for description and seed stock: uc2 in Kindred.   N v k b R

References:
1. R. G. Shands. 1962. Barley Newsletter 6:35-36.

Prepared: C. R. Burnham 1970.
 

BGS 0254    Orange lemma       o

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 6 (2).

Description: Has no pigment in the pericarp or aleurone layer, but does have an orange pigment in the lemma and palea, and this pigment also shows in the rachis (1).

Origin of mutant: Spontaneous mutation in the cultivar C.I.5649 (1).

Mutational events: o in C.I.5649 (1).
Mutant used for description and seed stock: o in C.I.5649. N v k b R

References:
1. Myler, J. L., and E. H. Stanford. 1942. J. Amer. Soc. Agron. 34:427-436.
2. Ramage, R. T., C. R. Burnham, and A. Hagberg. 1961. Crop Sci. 1:277-279.

Prepared:  C. R. Burnham 1970.
 

BGS 0255    Xantha seedling    x_n

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 6 (1).

Description: Yellow seedling (2). Xantha seedling (3). A pale yellow seedling lethal.

Origin of mutant: Spontaneous mutation in the cultivar Nepal (2).

Mutational events: x_n in Nepal (2).

Mutant used for description and seed stock: x_n in Nepal.   n v K b

References
(1) Kramer, H. H. and Barbara Swomley Blander. 1961. Crop Science 1:339-342.
(2) Robertson, D. W. 1933. Genetics 18:148-158.
(3) Robertson, D. W., G. A. Wiebe and F. R. Immer. 1941. Jour. Amer. Soc. Agron. 33:47-64.

Prepared:  C. R. Burnham 1970.
 

BGS 0256    Glossy leaf 4    gl4

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 6 (1).

Description: Leaf blades are of a distinctive bright-green color, and lack the blue component of normal green foliage. The green color of the stem and sheath is normal (1).

Origin of mutant: Aureomycin treatment in the cultivar Gateway (1).

Mutational events: gl4 in Gateway (1).

Mutant used for description and seed stock: gl4 in Gateway.   N v k b r s

References:
1. Walker, G. W. R., J. Dietrich, R. Miller, and K. J. Kasha. 1963. Can. J. Genet. Cytol. 5:200-219.

Prepared: T. Tsuchiya and T. E. Haus 1970
 

BGS 0301    Fragile stem    fs

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 7 (1).

Description: Extraordinary fragility of the stems and leaves. In spite of the fragility, the stems of this mutant become more flexible than those of the normal at a stage previous to its maturity (1). Gene symbol fs was given (1).

Origin of mutant: Spontaneous mutation in unknown cultivar and named "Kamairazu" which means "sickle not needed to harvest".

Mutational events: fs in Kamairazu.

Mutant used for description and seed stock: fs in Kamairazu.   N v k b R

References:
1. Takahashi, R., J. Yamamoto, S. Yasuda and Y. Itano. 1953. Ber. Ohara Inst. landw. Forsch. 10:29-52.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0302    Mottled 2    mt2

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 7 (1).

Description: Yellow to ivory bands, rarely necrotic, appear at emergence, gradually disappear, and are absent at heading. The base or tip of the first leaf is pale in some seedlings (1).

Origin of mutant: Rad-beryll treatment in the cultivar Montcalm (1).

Mutational events: mt2 in Montcalm (1).

Mutant used for description and seed stock: mt2 in Montcalm.   N v b k r

References:
1. Walker, G. W. R., J. Dietrich, R. Miller, and K. J. Kasha. 1963. Can. J. Genet. Cytol. 5:200-219.

Prepared: T. Tsuchiya and T. E. Haus 1970.
 

BGS 0303    Variegated 3    va3

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 7 (1).

Description: White stripes, less extensive and well-defined than those of ribbon grass type streaks. The streaks appear on the foliage and stems (1).

Origin of mutant: X-ray treatment in the cultivar Montcalm (1).

Mutational events: va3 in Montcalm (1).

Mutant used for description and seed stock: va3 in Montcalm.   N v k b r S

References:
1. Walker, G. W. R., J. Dietrich, R. Miller, and K. Kasha. 1963. Can. J. Genet. Cytol. 5:200-219.

Prepared: T. E. Haus and T. Tsuchiya. 1970.
 

BGS 0304    White streak 2    wst 2

Previous nomenclature and gene symbolization:  None.

Inheritance: Monofactorial recessive (1). Located on chromosome 7 (1).

Description: Character expression of this mutant is affected by growing temperature. When grown at low temperature, the mutants exhibit wide and numerous streaks on developing leaves, becoming almost albinic or chlorotic. Exposure to 3°C for about two weeks immediately after sowing induces distinct streaks on the first and second leaves of the mutant. As temperature rises, they develop green leaves with only a few white streaks (1).

Origin of mutant: Spontaneous mutation in the cultivar Manabe (1).

Mutational events: wst2 in Manabe (1).

Mutant used for description and seed stock: wst2 in Manabe.   n v uz k b R S

References:
l. Takahashi, R., and I. Moriya. 1969. Ber. Ohara Inst. landw. Biol. 15:35-46.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0305    Cream seedling     cm

Previous nomenclature and symbolization: Green vs. white seedling, A_b a_b (2, 3). Green vs. cream seedling (1,4)

Inheritance: Monofactorial recessive (2). Located on chromosome 7 (2).

Description: White seedling (2). Albino seedling (3). The seedlings are cream in color when about 2 weeks old (4).

Origin of mutant: Spontaneous mutation in the cultivar Blackhulless (2).

Mutational events: cm in Blackhulless (2).

Mutant used for description and seed stock: cm in Blackhulless.   n v k B R S

References:
1. Kramer, H. H., and Barbara Swomley Blander. 1961. Crop Science 1:339-342.
2. Robertson, D. W. 1933. Genetics 18:148-158.
3. Robertson, W. W., G. A. Wiebe, and F. R. Immer. 1941. Jour. Amer. Soc. Agron. 33:47-64.
4. Robertson, D. W., G. A. Wiebe, R. G. Shands, and A. Hagberg. 1965. Crop Science 5:33-43.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0306    Variegated    va

Previous nomenclature and gene symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 7 (1).

Description: White stripes, less extensive and well-defined than those of ribbon grass type streaks. The white streaks appear on the foliage and stems (1).

Origin of mutant: Cobalt⁶⁰ treatment in the cultivar Montcalm (1).

Mutational events: va in Montcalm (1).

Mutant used for description and seed stock: va in Montcalm.   N v k b r S

References:
1. Walker, G. W. R., J. Dietrich, R. Miller, and K. Kasha. 1963. Can. J. Genet. Cytol. 5:200-219.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0307     Short basal rachis internode    Lb

Previous nomenclature and gene symbolization: Short basal rachis internode length (Bi) (1). Symbol Lb was given by Robertson et al. (2).

Inheritance: Monofactorial dominance (1). Located on chromosome 7 (1).

Description: The basal rachis internode is the first internode above the collar. The basal rachis internode length is relatively short and not much different from the rest of internodes as shown in Figure 24A by Wiebe and Reid (3).

Origin of mutant: Natural occurrence in the cultivar Cape (1) and other cultivars (3).

Mutational events: Lb in Cape (1).

Mutant used for description and seed stock: Lb in Cape.   N v k b R s

References:
1. Hehn, E. R. 1948. Iowa State Coll. Jour. Sci. 23:39-40.
2. Robertson, D. W., G. A. Wiebe, and R. G. Shands. 1955. Agron. J. 47:418-425.
3. Wiebe, G. A., and D. A. Reid. 1961. U. S. Dept. Agr. Tech. Bull. 1224. 234 pp., illust.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0308    Long basal rachis internode    lb

Previous nomenclature and gene sumbolization: Long basal rachis internode (bi) (1). Gene symbol lb was given by Robertson et al. (2).

Inheritance: Monofactorial recessive (1). Located on chromosome 7 (1).

Description: The basal rachis internode is long and much longer than the rest of rachis internodes of the spike as shown in Figure 24c by Wiebe and Reid (3).

Origin of mutant: Natural occurrence in Wisconsin 38 (Barbless) (1, 3) and some other strains (3).

Mutational events: lb in Wisconsin 38 (1, 3).

Mutant used for description and seed stock: lb in Wisconsin 38.   N v k b r S

References:
1. Hehn, E. R. 1948. Iowa State Coll. Jour. Sci. 23:39-40.
2. Robertson, D. W., G. A. Wiebe, and R. G. Shands. 1955. Agron. J. 47:418-425.
3. Wiebe, G. A., and D. A. Reid. 1961. U. S. Dept. Agr. Tech. Bull. 1224. 234 pp., illust.

Prepared: T. E. Haus and T. Tsuchiya 1970.
 

BGS 0351    Normal vs. glossy sheath    Gs1 gs1

Previous nomenclature and symbolization: Non-glaucous vs. glaucous sheath, Gs gs (1). Normal vs. glossy sheath and spike, Gs gs (5). Normal vs. glossy sheath, (cer-) Gs gs (4).

Inheritance: Monofactorial recessive (1, 2). Located on chromosome 4 (tentative) (2).

Description: A bright glossy green color is apparent on all leaf sheaths, on the stems and on the head.

Origin of mutant: Spontaneous occurrence in the line C.I. 5818 (1).

Mutational events: gs1a in C.I. 5818, spontaneous (1, 2, 3). gs1b in Piroline C.I. 9558, spontaneous (2). gs1c in Velvon C.I. 6109, spontaneous (2, 5, 7).
gs1y in Minn. 549, spontaneous (2, 3).

The following list probably represent mutational events at the gs1 locus. As we have not checked them for allelism, they have not been assigned letter designations.
gs1 in Ethiopean 90, spontaneous (6)
gs1 in Ethiopean 210, spontaneous (6).
gs1 in Ethiopean 230, spontaneous (6).
gs1 mutant E₃-21 in Akashinriki, EMS-induced (6).
gs1 mutant E₃-33 in Akashinriki, EMS-induced (6).
gs1 mutant E₃-163 in Akashinriki, EMS-induced (6).
gs1 (reduced wax coating only) in Bozu Omugi 1, spontaneous (6).
gs1 in Minn. 653, spontaneous (3).
gs1 in C.I. 6790, spontaneous (3).
gs1 in C.I. 9696, spontaneous (3).
gs1 in T-60, spontaneous (3).
gs1 in T-137, spontaneous (3).
gs1 in T-202, spontaneous (3).
gs1 in R-82, spontaneous (3).

Mutant used for description and seed stock: gs1a in C.I. 5818. Genotype:   v b k N R s.

References:
(1) Immer, F. R. and M. T. Henderson. 1943. Genetics 28:419-440.
(2) McProud, W. L. and R. F. Eslick. (in preparation).
(3) Rasmusson, D. C. and J. W. Lambert. 1965. Crop Science 5:251-253.
(4) Robertson, D. W., G. A. Wiebe, R. G. Shands and A. Hagberg. 1965. Crop Science 5:33-43.
(5) Woodward, R. W. 1957. Jour. Amer. Soc. Agron. 49:28-32.
(6) Konishi, Takeo. 1969. Barley Newsletter 13:57-58.
(7) Woodward, R. W. Personal correspondence.
 

BGS 0352   Normal vs. glossy sheath    Gs2 gs2

Previous nomenclature and symbolization: Normal vs. glossy sheath, (cer-) Gs2 gs2 (3).

Inheritance: Monofactorial recessive (1). Located on chromosome 3 (tentative) (1).

Description: A bright glossy green color is apparent on all leaf sheaths, on the stem and on the head.

Origin of mutant: Spontaneous occurrence in the cultivar Vantage C.I. 7324 (1).

Mutational events: gs2d in Vantage C.I. 7324, spontaneous (1). gs2e in Ymer C.I. 7275, unknown (1). gs2f in Atlas C.I. 4118, spontaneous (1). gs2g in Atlas C.I. 4118, spontaneous (1). gs2h in Klargrin, unknown (1, 2).

Mutant used for description and seed stock: gs2f in Atlas C.I. 4118. Genotype: v b k N R s.

References:
(1) McProud, W. L. and R. F. Eslick. (in preparation).
(2) Rasmusson, D. C. and J. W. Lambert. 1965. Crop Science 5:251-253.
(3) Robertson, D. W., G. A. Wiebe, R. G. Shands and A. Hagberg. 1965. Crop Science 5:33-43.

Prepared: W. L. McProud and R. F. Eslick. 1970.
 

BGS 0353    Normal vs. glossy sheath    Gs3 gs3

Previous nomenclature and symbolization: Normal vs. glossy sheath-3, Gs3 gs3 (4). Normal vs. glossy sheath, (cer-) Gs3 gs3 (2, 3).

Inheritance: Monofactorial recessive (1, 2, 4). Located on chromosome 1 (2, 4).

Description: A bright glossy green color is apparent on all leaf sheaths, on the stem and on the head.

Origin of mutant: Radiation-induced in the cultivar Mars C.I. 7015 (2).

Mutational events: gs3i in Mars C.I. 7015, radiation-induced (1, 2). gs3j in Chevron C.I. 1111, spontaneous (1, 5). gs3k in the hybrid Atlas⁴ x Algerion 2x Atlas 57², spontaneous (1, 6).

Mutant used for description and seed stock: gs3i in Mars C.I. 7015 (may not be isogenic with the cultivar Mars C.I. 7015).     Genotype: v b k N r S.

References:
(1) McProud, W. L. and R. F. Eslick. (in preparation).
(2) Rasmusson, D. C. and J. W. Lambert. 1965. Crop Science 5:251-253.
(3) Robertson, D. W., G. A. Wiebe, R. G. Shands and A. Hagberg. 1965. Crop Science 5:33-43.
(4) Walker, G. W. R., J. Dietrich, R. Miller and K. Kasha. 1963. Can. J. Gen. Cytol. 5:200-219.
(5) Wiebe, G. A. Personal correspondence.
(6) Qualset, C. O. Personal correspondence.

Prepared: W. L. McProud and R. F. Eslick. 1970.
 

BGS 0354   Normal vs. glossy sheath  Gs4 gs4

Previous nomenclature and symbolization: Normal vs. glossy sheath-4, Gs4 gs4 (3). Normal vs. glossy sheath, (cer-) Gs4 gs4 (2).

Inheritance: Monofactorial recessive (1, 3). Located on chromosome 6 (3).

Description: A bright glossy green color is apparent on the stem, on the head and on the upper leaf sheaths. The lower leaf sheaths show the top half to be waxy appearing while the bottom half is glossy appearing.

Origin of mutant: Radiation-induced in the cultivar Gateway C.I. 10072 (3).

Mutational events: gs4l in Gateway C.I. 10072, radiation-induced (1, 3).

Mutant used for description and seed stock: gs4l in Gateway C.I. 10072.   Genotype: v b k N r s.

References:
(1) McProud, W. L. and R. F. Eslick. (in preparation).
(2) Robertson, D. W., G. A. Wiebe, R. G. Shands and A. Hagberg. 1965. Crop Science 5:33-43.
(3) Walker, G. W. R., J. Dietrich, R. Miller and K. Kasha. 1963. Can. J. Gen. Cytol. 5:200-219.

Prepared: W. L. McProud and R. F. Eslick. 1970.
 

BGS 0355    Normal vs. glossy sheath    Gs5 gs5

Previous nomenclature and symbolization: Normal vs. glossy sheath, (cer-) Gs5 gs5 (2). Normal vs. glossy sheath, Gs8 gs8 (3). Normal vs. glossy sheath, Gs7 gs7 (4).

Inheritance: Monofactorial recessive (1, 2, 4). Located on chromosome 2 (2, 3, 4).

Description: A bright glossy green color is apparent on all leaf sheaths, while the head and stem display a normal wax appearance.

Origin of mutant: Radiation-induced in the cultivar Jotun (2).

Mutational events: gs5m in Jotun, radiation-induced (1, 2). gs5n in Okaiku No. 3, spontaneous (1, 4).

The following list probably represents mutational events at the gs5 locus. As we have not checked them for allelism, they have not been assigned letter designations. gs5 mutant E₃-34 in Akashinriki, EMS-induced (5). gs5 mutant E₃-38 in Akashinriki, EMS-induced (5). gs5 mutant E₃-65 in Akashinriki, EMS-induced (5). gs5 mutant E₃-275 in Akashinriki, EMS-induced (5).

Mutant used for description and seed stock: gs5m in Jotun.   Genotype: v b k N R S.

References:
(1) McProud, W. L. and R. F. Eslick. (in preparation).
(2) Rasmusson, D. W. and J. W. Lambert. 1965. Crop Science 5:251-253.
(3) Takahashi, R. and J. Hayashi. 1968. Barley Newsletter 12:58-59.
(4) Takahashi, R., J. Hayashi, Y. Moriya and Ch. Hisao. 1965. Barley Newsletter 9:68-69.
(5) Konishi, Takeo. 1969. Barley Newsletter 13:57-58.

Prepared: W. L. McProud and R. F. Eslick. 1970.
 

BGS 0356    Normal vs. glossy sheath    Gs6 gs6

Previous nomenclature and symbolization: Normal vs. glossy sheath, (cer-) Gs6 gs6 (2). Normal vs. glossy sheath, (cer-) Gs7 gs7 (3). Normal vs. glossy sheath, Gs8 gs8 (4).

Inheritance: Monofactorial recessive (1, 2, 3, 4). Located on chromosome 2 (3, 4).

Description: A bright glossy green color is apparent on all leaf sheaths, on the stem and on the head. The gs6p allele in C.I. 9132 becomes progressively waxy in appearance as it matures.

Origin of mutant: Radiation-induced mutant in Domen C.I. 9562 (2).

Mutational events: gs6o in Domen C.I. 9562, radiation-induced (1, 2). gs6p (reduced wax coating only) in C.I. 9132, unknown (1). gs6q in Kogane Mugi, spontaneous (1, 3). gs6r in Barbless, spontaneous (1). gs6s in Betzes C.I. 6398, spontaneous (1). gs6t in Heines Hanna C.I. 9532, spontaneous (1). gs6u in Compana C.I. 5438, spontaneous (1). gs6v in Compana C.I. 5438, spontaneous (1). gs6w in Compana C.I. 5438, spontaneous (1). gs6x in Compana C.I. 5438, spontaneous (1).

The following list probably represents mutational events at the gs6 locus. As we have not checked them for allelism, they have not been assigned letter designations.
gs6 mutant E₃-19 in Akashinriki, EMS-induced (5). gs6 mutant E₃-32 in Akashinriki, EMS-induced (5). gs6 mutant E₃-39 in Akashinriki, EMS-induced (5).

Mutant used for description and seed stock: gs6s in Betzes C.I. 6398.   Genotype: V b k N R S.

References:
(1) McProud, W. L. and R. F. Eslick. (in preparation).
(2) Rasmusson, D. C. and J. W. Lambert. 1965. Crop Science 5:251-253.
(3) Takahashi, R. and J. Hayashi. 1966. Ber. Ohara Inst. f. Landwir. Biol. 13:185-198.
(4) Takahashi, R., J. Hayashi, Y. Moriya and Ch. Hisao. 1965. Barley Newsletter 9:68-69.
(5) Konishi, Takeo. 1969. Barley Newsletter 13:57-58.

Prepared: W. L. McProud and R. F. Eslick. 1970.

C.I. 5818      gs1a      C.I. 5818
Piroline      gs1b
Piroline      Gs1b      C.I. 9558
Velvon      gl1c
Velvon      Gs1c      C.I. 6109
Vantage      gs2d
Vantage      Gs2d      C.I. 7324
Ymer      gs2e
Atlas 1      gs2f
Atlas 2      gs2g
Atlas      Gs2f and Gs2g      C.I. 4118
Klargrin      gs2h
Mars      gs3i
Mars      Gs3i      C.I. 7015
Algerian x 4 Atlas x 2 Atlas 57      gs3k
Chevron      gs3j
Chevron      Gs3j      C.I. 1111
Gateway      gs4l
Gateway      Gs4l      C.I. 10072
Jotun      gs5m
Okaiku No. 3      gs5n
Domen      gs6o
Domen      Gs6o      C.I. 9562
C.I. 9132      gs6p      C.I. 9132
Barbless      gs6r
Barbless      Gs6r      C.I. 5105
Betzes      gs6s
Betzes      Gs6s      C.I. 6398
Heines Hanna      gs6t
Heines Hanna      Gs6t      C.I. 9532
Compana 1      gs6u
Compana 2      gs6v
Compana 3      gs6w
Compana 4      gs6x
Compana      Gs6u, Gs6v, Gs6w, Gs6x      C.I. 5438
Minn. 549      gsly
 
 

BGS 0357   Normal vs. male sterile    Ms1 ms1

Previous nomenclature and symbolization: Normal vs. male sterile, Ms ms (6).

Inheritance: Monofactorial recessive (6). Located on chromosome 5 (4).

Description:  Selfing - None (1). Outcrossing - Complete female fertility (1). Anther size - Smaller than fertile sib (1). Pollen - Microspores degenerated at or before free microspore stage (3); non-staining, shrunken, and devoid of cytoplasm (5). Cytology - normal development and differentiation of anthers until completion of meiosis (3).

Origin of mutant: Spontaneous occurrence in a Composite Cross line C.I. 5368 (6).

Mutational events: ms1 in Composite Cross line C.I. 5368, spontaneous (6). ms1i in 80TT25 C.I. 13638, spontaneous (2). ms1t in Trophy C.I. 10647, spontaneous (2). ms1ai in Betzes C.I. 6398, spontaneous (2). ms1aw in Betzes C.I. 6398, spontaneous (2).

Mutant used for description and seed stock: ms1 from Composite Cross line C.I. 5368.

References:
(1) Hockett, E. A., and R. F. Eslick. 1968. Crop Science 8:218-220.
(2) Hockett, E. A., R. F. Eslick, D. A. Reid and G. A. Wiebe. 1968. Crop Science 8:754-755.
(3) Kaul, C. L. and S. P. Singh. 1966. Crop Science 6:539-540.
(4) Ramage, R. T., C. R. Burnham, and A. Hagberg. 1961. Crop Science 1:277-279.
(5) Roath, W. W. and E. A. Hockett. 1971. Crop Science 11: (in press).
(6) Suneson, C. A. 1940. J. Hered. 31:213-214

Prepared:  E. A. Hockett. 1970.
 

BGS 0358   Normal vs. male sterile    Ms2 ms2

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 2 (1).

Description: Selfing - None (2). Outcrossing - Complete female fertility (2). Anther size - Smaller than fertile sib (4). Pollen - non-staining, shrunken, and no normal-appearing grains (4).

Origin of mutant: Spontaneous occurrence in an F2 of C.I. 2330 x C.I. 4363 (2).

Mutational events: ms2 in F2 Of C.I. 2330 x C.I. 4363, spontaneous (2). ms2ax in Compana C.I. 5438, spontaneous (3).

Mutant used for description and seed stock: ms2 from F2 of C.I. 2330 x C.I. 4363.

1) Austenson, H. M. 1948. M.S. Thesis. University of Saskatchewan.
(2) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(3) Hockett, E. A., R. F. Eslick, D. A. Reid and G. A. Wiebe. 1968. Crop Science 8:754-755.
(4) Roath, W. W. and E. A. Hockett. 1971. Crop Science 11: (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0359    Normal vs. male sterile    Ms3 ms3

Previous nomenclature and symbolization: Normal vs. male sterile Ms10 ms1O (1, 2, 4).

Inheritance: Monofactorial recessive (2). Located on chromosome 2 (2).

Description: Selfing - None (1, 2). Outcrossing - Complete female fertility (1, 2). Anther size - Much smaller than fertile sib (1). Pollen - non-staining, no free pollen grains (3). There is no separation of "brachytic" dwarfing and male sterility in this mutant (1, 2).

Origin of mutant: Acetone-induced in the cultivar Gateway C.I. 10072 (2).

Mutational events: ms3 in Gateway C.I. 10072, acetone-induced (2).

Mutant used for description and seed stock: ms3 in Gateway C.I. 10072.

References:
(1) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(2) Kasha, K. J. and G. W. R. Walker. 1960. Can. J. Genet. Cytol. 2:397:415.
(3) Roath, W. W. and E. A. Hockett. 1971. Crop Science 11: (in press).
(4) Robertson, D. W., G. A. Wiebe, R. G. Shands and A. Hagberg. 1965. Crop Science 5:33-43.

Prepared: E. A. Hockett. 1970.
 

BGS 0360  Normal vs. male sterile    Ms4 ms4

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (2). Located on chromosome 5 (1).

Description: Selfing - None (2). Outcrossing - Complete female fertility (2). Anther size - Smaller than fertile sib (2). Pollen - non-staining, shrunken, and no normal-appearing grains (3).

Origin of mutant: Spontaneous occurrence in the cultivar Freja C.I. 7130 (2).

Mutational events: ms4 in Freja C.I. 7130, spontaneous (2).

Mutant used for description and seed stock: ms4 in Freja C.I. 7130.

References:
(1) Eslick, R. F. and E. A. Hockett. 1967. Crop Sci. Abstr. Annual Meeting of the Western Society of Crop. Sci. 1967:6.
(2) Hockett. E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(3) Roath, W. W. and E. A. Hockett. 1971. Crop Science 11: (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0361   Normal vs. male sterile    Ms5 ms5

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 3 (2).

Description: Selfing - None (1). Outcrossing - Complete female fertility (1). Anther size - Smaller than fertile sib (1). Pollen - non-staining, some normal-appearing grains (3).

Origin of mutant: Spontaneous occurrence in the cultivar Carlsberg II C.I. 10114 (1)

Mutational events: ms5 in Carlsberg II C.I. 10114, spontaneous (1).

Mutant used for description and seed stock: ms5 in Carlsberg II C.I. 10114.

References:
(1) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(2) Hockett, E. A. and R. F. Eslick. 1970. Proc. 2nd Int. Barley Genet. Symp. (in press).
(3) Roath, W. W. and E. A. Hockett. 1971.    Crop Science 11: (in press).

Prepared: E. A. Hockett. 1970.

BGS 0362    Normal vs. male sterile    Ms6 ms6

Previous nomenclature and symbolization None.

Inheritance: Monofactorial recessive (1).

Description: Selfing - None (1). Outcrossing - Complete female fertility (1). Anther size - Equal to fertile sib (1). Pollen - Microsporogenesis similar to fertile sib; stained in both field and greenhouse; in most samples grains appear normal (2). Cytology - Normal development and differentiation of anthers (2).

Origin of mutant: Spontaneous occurrence in the cultivar Heines Hanna C.I. 9532 (1).

Mutational events: ms6 in Heines Hanna C.I. 9532, spontaneous (1).

Mutant used for description and seed stock: ms6 in Heines Hanna C.I. 9532.

References:
(1) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(2) Roath, W. W. and E. A. Hockett. 1971.    Crop Science 11: (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0363     Normal vs. male sterile    Ms7 ms7

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1).

Description: Selfing - None (1). Outcrossing - Complete female fertility (1). Anther size - Much smaller than fertile sib (1). Pollen - Microspores degenerate before free microspore stage, non-staining, no free pollen grains (2). Cytology - Normal development and differentiation of anthers until completion of meiosis (2).

Origin of mutant: Spontaneous occurrence in the cultivar Dekap C.I. 3351 (1).

Mutational events: ms7 in Dekap C.I. 3351, spontaneous (1).

Mutant used for description and seed stock: ms7 in Dekap C.I. 3351.

References:
(1) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(2) Roath, W. W. and E. A. Hockett. 1971.    Crop Science 11: (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0364    Normal vs. male sterile    Ms8 ms8

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1).

Description: Selfing - None (1). Outcrossing - Complete female fertility (1). Anther size - Smaller than fertile sib (1). Pollen - Microsporogenesis similar to fertile; very small percent stains in TTC, also stains with AC in some samples; grains appear normal (2). Cytology - Normal development and differentiation of anthers up to free microspore stage (2).

Origin of mutant: Spontaneous occurrence in the cultivar Betzes C.I. 6398 (1).

Mutational events: ms8 in Betzes C.I. 6398, spontaneous (1).

Mutant used for description and seed stock: ms8 in Betzes C.I. 6398.

References:
(1) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(2) Roath, W. W. and E. A. Hockett. 1971. Crop Science 11: (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0365  Normal vs. male sterile    Ms9 ms9

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1).

Description: Selfing - 10% at Bozeman, Montana and 24% at Tucson, Arizona (1). Outcrossing - Complete female fertility (1). Anther size - Smaller than fertile sib (1). Pollen - Stained in both field and greenhouse; in some samples grains appear normal (2).

Origin of mutant: Spontaneous occurrence in the cultivar Vantage C.I. 7324 (1).

Mutational events: ms9 in Vantage C.I. 7324, spontaneous (1).

Mutant used for description and seed stock: ms9 in Vantage C.I. 7324.

References:
(1) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(2) Roath, W. W. and E. A.Hockett. 1971.    Crop Science 11: (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0366    Normal vs. male sterile    Ms10 ms10

Previous nomenclature and symbolization: Normal vs. male sterile, Ms3 ms3, (3).

Inheritance: Monofactorial recessive (2). Located on chromosome 1 (1).

Description: Selfing - None (2). Outcrossing - Complete female fertility (2). Anther size - Smaller than fertile sib (2). Pollen - No staining with TTC, stains with AC; some normal appearing grains (4).

Origin of mutant: ms1O spontaneous occurrence in the F13 of the hybrid C.I. 2330 x C.I. 4424 (2).

Mutational events: ms1O in the F13 of C.I. 2330 x C.I. 3324, spontaneous (2). ms1Oaz in Compana C.I. 5438, spontaneous (3).

Mutant used for description and seed stock: ms1O in the F13 of C.I. 2330 x C.I. 3324.

References:
(1) Eslick, R. F. and E. A. Hockett. 1967. Crop Sci. Abstr. Annual Meeting of the Western Society of Crop Sci. 1967:6.
(2) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(3) Hockett, E. A., R. F. Eslick, D. A. Reid and G. A. Wiebe. 1968. Crop Science 8:754-755.
(4) Roath, W. W. and E. A. Hockett. 1971.    Crop Science 11: (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0367    Normal vs. male sterile    Ms11 ms11

Previous nomenclature and symbolization:  Normal vs. male sterile, Ms10 ms1O (1, 2, 3, 4, 6, 7). Normal vs. male sterile. Ms12 ms12 (1).

Inheritance: Monofactorial recessive (1, 7).

Description: Selfing - None (1). Outcrossing - Complete female fertility (1). Anther size - Smaller than fertile sib (1). Pollen - Non-staining, no normal grains to some staining, some normal-appearing grains depending on genotype (5).

Origin of mutant: Spontaneous occurrence in the cultivar Gateway C.I. 10072 (4).

Mutational events: ms11 in Gateway C.I. 10072, spontaneous (4). ms11az in Svalof 50-109, C.I. 10524, spontaneous (1).

Mutant used for description and seed stock: ms11 in Gateway C.I. 10072.

References:
(1) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(2) Hockett, E. A., R. F. Eslick, D. A. Reid and G. A. Wiebe. 1968. Crop Science 8:754-755.
(3) Hockett, E. A. and R. F. Eslick. 1970. Proc. 2nd Int. Barley Genet. Symp. (in press).
(4) Kasha, K. J. and Walker, G. W. R. 1960 Can. J. Genet. Cytol. 2:397:415.
(5) Roath, W. W. and E. A. Hockett. 1971. Crop Science 11: (in press).
(6) Robertson, D. W., G. A. Wiebe, R. G. Shands and A. Hagberg, 1965. Crop Science 5:33-43.
(7) Walker, &. W. R., J. Dietrich, R. Miller and K. Kasha. 1963. Can. J. Genet. Cytol. 5:200-219.

Prepared: E. A. Hockett. 1970.
 

BGS 0368    Normal vs. male sterile    Ms13 ms13

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1).

Description: Selfing - None (1). Outcrossing - Complete female fertility (1). Anther size - Smaller than fertile sib (1). Pollen - Non-staining, shrunken, and no normal-appearing grains (2).

Origin of mutant: Spontaneous occurrence in the cultivar Haisa II, C.I. 10420 (1) .

Mutational events: ms13 in Haisa II C.I. 10420, spontaneous (1).

Mutant used for description and seed stock: ms13 in Haisa II C.I. 10420.

References:
(1) Hockett. E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(2) Roath, W. W. and E. A. Hockett. 1971. Crop Science 11: (in press)

Prepared: E. A. Hockett. 1970.
 

BGS 0369    Normal vs. male sterility    Ms14 ms14

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (2). Located on chromosome 1 (1).

Description: Selfing - None (2). Outcrossing - Complete female fertility (2). Anther size - Smaller than fertile sib (2). Pollen - Very small percent stains in TTC, also stains with AC, some normal-appearing grains (3).

Origin of mutant: Spontaneous occurrence in the cultivar Unitan, C.I. 10421 (2).

Mutational events: ms14 in Unitan C.I. 10421, spontaneous (2).

Mutant used for description and seed stock: ms14 in Unitan C.I. 10421.

References
(1) Eslick, R. F. and E. A. Hockett. 1967. Crop Sci. Abstr. Annual Meeting of the Western Society of Crop Sci. 1967:6.
(2) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(3) Roath, W. W. and E. A. Hockett. 1971. Crop Science 11: (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0370    Normal vs. male sterile    Ms15 ms15

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1).

Description: Selfing - Early tillers 7.7% and late tillers 46.2% at Bozeman, Montana (1). Outcrossing - Complete female fertility (1). Anther size - Smaller than fertile sib (1). Different from usual male sterile since late tillers are fertile (1).

Origin of mutant: Spontaneous occurrence in the line Atlas x 2 Kindred, C.I. 13446.

Mutational events: ms15 in C.I. 13446, spontaneous (1).

Mutant used for description and seed stock: ms15 in C.I. 13446.

References:
(1) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.

Prepared: E. A. Hockett. 1970.
 

BGS 0371   Normal vs. male sterile    Ms16 ms16

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (2). Located on chromosome 7 (1, 3).

Description: Selfing - None (2). Outcrossing - Complete female fertility (2). Anther size - Almost equal to fertile sib (2). Pollen - Stained in both field and greenhouse, in some samples, grains appear normal (4).

Origin of mutant:  Spontaneous occurrence in the cultivar Betzes C.I. 6398 (2).

Mutational events: ms16 in Betzes C.I. 6398, spontaneous (2).

Mutant used for description and seed stock: ms16 in Betzes C.I. 6398.

References:
1) Hayes, J. D. and M. S. Rana. 1966. Welsh Plant Breeding Station, Aberystwyth, Report for 1965:47-48.
(2) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(3) Hockett, E. A. and R. F. Eslick. 1970. Proc. 2nd Int. Barley Genetics Symp. (in press).
(4) Roath, W. W. and E. A. Hockett. 1971. Crop Science 11: (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0372    Normal vs. male sterile    Ms17 ms17

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1).

Description: Selfing - 1% at Bozeman, Montana and 3% at Tucson, Arizona (1). Outcrossing - Complete female fertility (1). Anther size - Smaller than fertile sib (1). Pollen - No staining with TTC, stains with AC, some normalappearing grains (2).

Origin of mutant: Spontaneous occurrence in the cultivar Compana C.I. 5438 (1).

Mutational events: ms17 in Compana C.I. 5438, spontaneous (1).

Mutant used for description and seed stock: ms17 in Compana C.I. 5438.

References:
(1) Hockett. E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(2) Roath, W. W. and E. A. Hockett. 1971.    Crop Science 11: (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0373    Normal vs. male sterile    Ms18 ms18

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1).

Description: Selfing - None (1). Outcrossing - Complete female fertility (1). Anther size - Smaller than fertile sib (1). Pollen - No staining with TTC, stains with AC, some normal-appearing grains (2).

Origin of mutant: Spontaneous occurrence in the cultivar Compana C.I. 5438 (1).

Mutational events: ms18 in Compana C.I. 5438, spontaneous (1).

Mutant used for description and seed stock: ms18 in Compana C.I. 5438.

References:
(1) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(2) Roath, W. W. and E. A. Hockett. 1971. Crop Science 11: (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0374    Normal vs. male sterile    Ms19 ms19

Previous nomenclature and symbolization: None

Inheritance: Monofactorial recessive (1). Located on chromosome 7 (2).

Description: Selfing - None (1). Outcrossing - Complete female fertility (1). Anther size - Smaller than fertile sib (1). Pollen - No staining with TTC, stains with AC, some normalappearing grains (3).

Origin of mutant: Spontaneous occurrence in the line C.I. 4961-1 (1).

Mutational events: ms19 in C.I. 4961-1 (1).

Mutant used for description and seed stock: ms19 in C.I. 4961-1.

References:
(1) Hockett, E. A. and R. F. Eslick. 1968. Crop Science 8:218-220.
(2) Hockett, E. A. and R. F. Eslick. 1970. Proc. 2nd Int. Barley Genetics Symp. (in press).
(3) Roath, W. W. and E. A. Hockett. 1971. Crop Science ll: (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0375    Normal vs. male sterile    Ms20 ms20

Previous nomenclature and symbolization:  Normal vs. male sterile, Ms,,ad ms,,ad (1, 2, 3).

Inheritance: Monofactorial recessive (2). Located on chromosome 5 (2).

Description: Selfing - None (2). Outcrossing - Complete female fertility (2). Anther size - Smaller than fertile sib.

Origin of mutant: X-ray induced in the cultivar Hannchen C.I. 531 (1).

Mutational events: ms20 in Hannchen C.I. 531, X-ray induced (1).

Mutant used for description and seed stock: ms20 in Hannchen C.I. 531.

References:
(1) Hockett, E. A., R. F. Eslick, D. A. Reid and G. A. Wiebe. 1968. Crop Science 8:754-755.
(2) Hockett, E. A. and R. F. Eslick. 1970. Proc. 2nd Int. Barley Genetics Symp. (in press).
(3) Robertson, D. W. 1970. Proc. 2nd Int. Barley Genetics Symp. (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0376    Normal vs. male sterile    Ms21 ms21

Previous nomenclature and symbolization: Normal vs. male sterile, Ms,,q ms,,q (1, 2, 3).

Inheritance: Monofactorial recessive (2).

Description: Selfing - 1 to 4% (1, 2). Outcrossing - Complete female fertility (2). Anther size - Almost equal to fertile sib.

Origin of mutant: Spontaneous occurrence in Midwest Bulk C.I. 13640 (1).

Mutational events: ms21 in C.I. 13640 (1).

Mutant used for description and seed stock: ms21 in C.I. 13640.

References:
(1) Hockett, E. A., R. F. Eslick, D. A. Reid and G. A. Wiebe. 1968. Crop Science 8:754-755.
(2) Hockett, E. A. and R. F. Eslick. 1970. Proc. 2nd Int. Barley Genetics Symp. (in press).
(3) Robertson, D. W. 1970. Proc. 2nd Int. Barley Genetics Symp. (in press).

Prepared: E. A. Hockett. 1970.
 

BGS 0377   Normal vs. shrunken endosperm    Se1 se1

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 1 (1).

Description: The phenotype is "thin" seeds. The 100 seed weight of the mutant is about 33% of normal. Pollen mother cell meiosis, endosperm mitosis and fertility are normal. The mutant does not express xenia. Good stands of this mutant can be grown under field conditions if optimum environmental conditions prevail during germination and emergence (1).

Origin of mutant: Spontaneous occurrence in the cultivar Betzes C.I. 6398 (1).

Mutational events: se1a in Betzes C.I. 6398, spontaneous (1).

Mutant used for description and seed stock: se1a in Betzes C.I. 6398.   Genotype: V b k N R S.

References:
(1) Jarvi, A. J. 1970. Ph.D. Thesis. Montana State University, Bozeman, Montana.

Prepared: A. J. Jarvi and R. F. Eslick. 1970.
 

BGS 0378    Normal vs. shrunken endosperm    Se2 se2

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 1 (1).

Description: The phenotype is "thin" seeds. The 100 seed weight of the mutant is about 15% of normal. Pollen mother cell meiosis, endosperm mitosis and fertility are normal. The mutant does not express xenia. There is little or no starch deposited in the seed that develops on a homozygous mutant plant. Seed from the homozygous mutant never produce plants under field conditions. Plants can be obtained from the shrunken endosperm seeds by germinating the seed on blotters with a 10% sucrose solution. About 25% of the seeds germinated produce plants after transplanting the seedlings to soil when the coleoptile is about 3 cm in length (1).

Origin of mutant: Spontaneous occurrence in the cultivar Betzes C.I. 6398 (1).

Mutational events: se2b in Betzes C.I. 6398, spontaneous (1).

Mutant used for description and seed stock: se2b in Betzes C.I. 6398.   Genotype: V b k N R S.

References:
(1) Jarvi, A. J. 1970. Ph.D. Thesis. Montana State UniversityX Bozeman, Montana.

Prepared: A. J. Jarvi and R. F. Eslick. 1970.
 

BGS 0379    Normal vs. shrunken endosperm    Se3 se3

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 3 (1).

Description: The phenotype is "thin" seed. The 100 seed weight of the mutant is about 33% of normal. Pollen mother cell meiosis, endosperm mitosis and fertility are normal. The mutant does not express xenia. Generally good stands of this mutant can be obtained under field conditions (1).

Origin of mutant: Spontaneous occurrence in the cultivar Compana C.I. 5438 (1).

Mutational events: se3c in Compana C.I. 5438, spontaneous (1).

Mutant used for description and seed stock: se3c in Compana C.I. 5438.   Genotype: V b k N R S.

References:
(1) Jarvi, A. J. 1970. Ph.D. Thesis. Montana State Universitys Bozeman, Montana.

Prepared: A. J. Jarvi and R. F. Eslick. 1970.
 

BGS 0380    Normal vs. shrunken endosperm    Se4 se4

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 1 (1).

Description: The phenotype is "thin" seeds accompanied by about 50% female sterility. The sterile florets appear to start development but abort before they reach half the length of the lemma. The 100 seed weight of the mutant is about 38% of normal. Pollen mother cell meiosis and endosperm mitosis are normal. The mutant does not express xenia. The mutant can be grown under field conditions but poor stands are obtained when less than optimum conditions prevail during germination and emergence (1) .

Origin of mutant: Spontaneous occurrence in the cultivar Compana, C.I. 5438 (1).

Mutational events: se4d in Compana C.I. 5438, spontaneous (1).

Mutant used for description and seed stock: se4d in Compana C.I. 5438.   Genotype: V b k N R S.

References:
(1) Jarvi, A. J. 1970. Ph.D. Thesis. Montana State University, Bozeman, Montana.

Prepared: A. J. Jarvi and R. F. Eslick. 1970.
 

BGS 0381   Normal vs. shrunken endosperm    Se5 se5

Previous nomenclature and symbolization: None.

Inheritance: Monofactorial recessive (1). Located on chromosome 1 (1).

Description: The phenotype is "thin" seeds accompanied by about 80% female sterility. The female sterility appears to be due to aborted seed. The caryposis of the mutant generally extends beyond the lemma and palea. The 100 seed weight of the mutant is quite variable, averaging about 50% of normal. Pollen mother cell meiosis and endosperm mitosis are normal. The mutant does not express xenia (1).

Origin of mutant: Spontaneous occurrence in a Sermo x Glacier⁷ line (1).

Mutational events: se5e in a Sermo x Glacier⁷ line, spontaneous (1).

Mutant used for description and seed stock: se5e in Sermo x Glacier⁷ line.   Genotype: v b k N r s.

References:
(1) Jarvi, A. J. 1970. Ph.D. Thesis. Montana State University. Bozeman, Montana.

Prepared: A. J. Jarvi and R. F. Eslick. 1970.
 

BGS 0382    Normal vs. shrunken endosperm   Se6 se6

Previous nomenclature and symbolization: None

Inheritance: Monofactorial recessive expressing xenia (1). Located on chromosome 6 (1).

Description: After the hard dough stage, seeds of the mutant develop a depression in the center of the lemma which becomes progressively more distinct with maturity. The 100 seed weight of the mutant is about 75% of normal. Pollen mother cell meiosis, endosperm mitosis and fertility are normal. The mature endosperm of the mutant appears to be much harder than normal. The mutant expressed xenia permitting 1:2:1 classification in F2. Field establishment and growth are normal (1).

Origin of mutant: Spontaneous occurrence in the cultivar Compana C.I. 5438 (1).

Mutational events: se6f in Compana C.I. 5438, spontaneous (1).

Mutant used for description and seed stock: se6f in Compana C.I. 5438. Genotype: V b k N R S.

References:
(1) Jarvi, A. J. 1970. Ph.D. Thesis. Montana State University, Bozeman, Montana.

Prepared: A. J. Jarvi and R. F. Eslick. 1970.
 

BGN 1 toc
BGN Main Index