Page
232 . . . BGS 251; Multiflorous 2
233 . . . BGS 252; Early maturity 7
234 . . . BGS 253; Uniculm 2
235 . . . BGS 254; Orange lemma
237 . . . BGS 255; Xantha seedling 5
238 . . . BGS 257; Smooth awn 5
239 . . . BGS 258; Dense spike 9
240 . . . BGS 260; Chlorina seedling 11
241 . . . BGS 261; Necrotic leaf spot 2
242 . . . BGS 262; Curly 1
243 . . . BGS 263; Curly 3
244 . . . BGS 264; Mottled leaf 5
245 . . . BGS 265; Necrotic leaf spot 3
246 . . . BGS 266; Erectoides-e
247 . . . BGS 267; Reaction to Puccinia hordei 11 (barley leaf rust)
248 . . . BGS 268; Laxatum-b
249 . . . BGS 269; High lysine 6
250 . . . BGS 270; Albino seedling 14
251 . . . BGS 271; Albino seedling 15
Stock number: BGS 251
Locus name: Multiflorus 2
Locus symbol: mul2
Previous nomenclature and gene symbolization:
Multiflorus 2 = mlt2 (3).
The change to mul2 was recommended by Robertson (2).
Inheritance:
Monofactorial recessive (3).
Located in chromosome 6HL (1, 3), about 24.2 cM distal from the rob
(orange lemma) locus (1, 3).
Description:
Lateral spikelets may have supernumerary florets and occasionally nodal
branches appear at random in the spike. The character shows variable expression
in some crosses, and only a few spikes may be affected in some plants (3). The
trait is expressed only as a malformed rachilla in some lateral spikelets of
six-rowed plants in the Bowman backcross-derived line. The rachilla
malformation is most pronounced near the middle of the spike and ranges from
formation of a fertile floret to slight elongation of the rachilla.
Confirmation that this trait is the same gene as in the original stock is not
completed.
Origin of mutant:
A betatron induced mutant in Montcalm (CIho 7149) (3).
Mutational events:
mul2.b in Montcalm (Alb Acc 299, GBC326) (1, 3).
Mutant used for description and seed stocks:
mul2.b in Montcalm (GSHO 1394); mul2.b plus vrs1.a in
Bowman (PI 483237)*6 (GSHO 2089).
References:
1. Kasha, K.G., D.E. Falk, and A. Ho-Tsai. 1978. Linkage data with genes on
chromosome 6. BGN 8:61-65.
2. Robertson, D.W. 1964. New genes in barley with their relation to linkage
groups and chromosomes. p. 159-180. In S. Broekhuizen, G. Dantuma, H.
Lamberts, and W. Lange (eds.) Barley Genetics I. Proc. First Int. Barley Genet.
Symp., Wageningen, 1963. Centre for Agricultural Publications and
Documentation, Wageningen.
3. Walker, G.W.R., J. Dietrich, R. Miller, and K. Kasha. 1963. Recent barley
mutants and their linkages II. Genetic data for further mutants. Can. J. Genet.
Cytol. 5:200-219.
Prepared:
T. Tsuchiya and T.E. Haus. 1971. BGN 1:154.
Revised:
J.D. Franckowiak. 1997. BGN 26:232.
Stock number: BGS 252
Locus name: Early maturity 7
Locus symbol: eam7
Previous nomenclature and gene symbolization:
Early heading = ec (6).
Early maturity 7 = ea7 (5).
Inheritance:
Monofactorial recessive (2, 6).
Located in chromosome 6HS (6), about 0.5 cM from the rob (orange lemma)
locus (5), and about 3.0 cM from the centromere (3).
Description:
Under short-day conditions in California, USA, mutant plants bloom about 4
weeks before California Mariout, produce relatively few tillers, are fine
stemmed, and are relatively short. Differences are less pronounced under
long-day conditions (5). Mutants are partially insensitive to photoperiod and
have a vernalization requirement (6). Under long-day conditions, difficulty in
identification of segregates expressing the eam7.g gene is reported (4).
When the Eam1.a (early maturity 1) gene is not present, eam7.g
plants head 10 to 14 days earlier than Bowman in nurseries at Yuma, Arizona,
USA, but only 3 to 5 days earlier at Fargo, North Dakota, USA. The Eam1.a
gene present in California Mariout apparently interacts with the
eam7.g allele under short-day conditions to cause extreme earliness.
Origin of mutant:
A spontaneous mutant in Atlas (PI 539108) identified as Atsel (CIho 6250) (1);
present in male sterile Club Mariout/6*California Mariout (PI 527380) (1, 6).
Mutational events:
eam7.g in BC6 California Mariout (GBC326) (2, 5);
eam7.n (Ea1), eam7.o (Ea2), eam7.p (Ea3) in Chikurin
Ibaraki 1 (OUJ069, CIho 7370) (7).
Mutant used for description and seed stocks:
eam7.g in BC6 California Mariout (GSHO 579); eam7.g in
Bowman (PI 483237)*3 (GSHO 2068).
References:
1. Gallagher, L.W. (unpublished).
2. Gallagher, L.W., K.M. Soliman, and H. Vivar. 1991. Interactions among loci
conferring photoperiod insensitivity for heading time in spring barley. Crop
Sci. 31:256-261.
3. Kramer, H.H., and B.A. Swomley Blander. 1961. Orienting linkage maps on the
chromosomes of barley. Crop Sci. 1:339-342.
4. Kasha, K.G., D.E. Falk, and A. Ho-Tsai. 1978. Linkage data with genes on
chromosome 6. BGN 8:61-65.
5. Ramage, R.T. 1962. Genetic and cytogenetic studies of barley. Barley Newsl.
6:67.
6. Ramage, R.T., and C.A. Suneson. 1958. A gene marker for the g chromosome of
barley. Agron. J. 50:114.
7. Ukai, Y., and A. Yamashita. 1981. Early mutants of barley induced by
ionizing radiation and chemicals. p. 846-854. In M.J.C. Asher, R.P.
Ellis, A.M. Hayter, and R.N.H. Whitehouse (eds.) Barley Genetics IV. Proc.
Fourth Int. Barley Genet. Symp. Edinburgh. Edinburgh Univ. Press, Edinburgh.
Prepared:
C.R. Burnham. 1971. BGN 1:155. Early heading, ea7.
Revised:
J.D. Franckowiak and L.W. Gallagher. 1997. BGN 26:233.
Stock number: BGS 253
Locus name: Uniculm 2
Locus symbol: cul2
Previous nomenclature and gene symbolization:
Inheritance:
Monofactorial recessive (6).
Located in chromosome 6HL (3, 5), about 1.3 cM distal from the gsh4
(glossy sheath 4) locus (2, 4), about 11.4 cM from the msg36 (male
sterile genetic 36) locus (2, 4), and 2.2 cM proximal from the rob
(orange lemma) locus (2, 3, 4).
Description:
Plants usually have but a single culm (stem). Stems are much greater in
diameter than normal, and plants are usually earlier than normal (6). Irregular
placement of some spikelets and male fertility in lateral spikelets occur in
the Bowman backcross-derived line (5). Yield of uniculm plants is not restored
when grown under high plant populations (1).
Origin of mutant:
A thermal neutron induced mutant in Kindred (CIho 6969) (6).
Mutational events:
cul2.b in Kindred (GBC379) (4).
Mutant used for description and seed stocks:
cul2.b in Kindred (GSHO 531, CIho 115530); cul2.b in Bowman (PI
483237)*4 (GSHO 2074); cul2.b plus rob1.a from sel 79Cal in
Bowman*8 (GSHO 2075).
References:
1. Dofing, S.M. 1996. Near-isogenic analysis of uniculm and
conventional-tillering barley lines. p. 617-619. In A.E. Slinkard, G.J.
Scoles, and B.G. Rossnagel (eds.) Proc. Fifth Int. Oat Conf. & Seventh Int.
Barley Genet. Symp., Saskatoon. Univ. of Saskatchewan, Saskatoon.
2. Falk, D.E., M.J. Swartz, and K.J. Kasha. 1980. Linkage data with genes near
the centromere of barley chromosome 6. BGN 10:13-16.
3. Hayashi, J., T. Konishi, I. Moriya, and R. Takahashi. 1984. Inheritance and
linkage studies in barley. VI. Ten mutant genes located on chromosomes 1 to 7,
except 3. Ber. Ohara Inst. landw. Biol., Okayama Univ. 18:227-250.
4. Kasha, K.G., D.E. Falk, and A. Ho-Tsai. 1978. Linkage data with genes on
chromosome 6. BGN 8:61-65.
5. Kirby, E.J. 1973. Effect of temperature on ear abnormalities in uniculm
barley. J. Exp. Bot. 24:935-947.
6. Shands, R.G. 1963. Inheritance and linkage of orange lemma and uniculm
characters. Barley Newsl. 6:35-36.
Prepared:
C.R. Burnham. 1971. BGN 1:156.
Revised:
J.D. Franckowiak. 1997. BGN 26:234.
Stock number: BGS 254
Locus name: Orange lemma
Locus symbol: rob
Previous nomenclature and gene symbolization:
Orange lemma = pl (11).
Orange lemma = br (1, 2).
Orange lemma = o (12).
Robiginosum-o = rob-o (5).
Inheritance:
Monofactorial recessive (1, 2, 11, 12).
Located in chromosome 6HS (3, 4, 13, 14), about 10.8 cM proximal from the
msg36 (male sterile genetic 36) locus (4, 8), and about 2.2 cM distal
from the cul2 (uniculm 2) locus (4, 6, 8).
Description:
The lemma, palea, and rachis have an orange pigmentation that is present in
immature spikes, can be observed at heading, and is retained in mature grain
and spikes (2, 12). The orange pigmentation is visible at the base of sheath of
seedlings and in exposed nodes after jointing. Internodes have a layer of
orange tissue and stems have an orange color as the straw dries. The mutant
stock for rob1.f (OUM189) has a lighter orange lemma color than that in
other mutants at the rob locus (9).
Origin of mutant:
A spontaneous mutant in CIho 5649 (12).
Mutational events:
rob1.a in CIho 5649 (GBC340) (7, 12); rob1.b (OUM185), rob1.c
(OUM186), rob1.d (OUM187), rob1.e (OUM188), rob1.f
(OUM189) in Akashinriki (OUJ659, PI 467400) (9); rob1.1, rob1.2 in
Bonus (PI 189763), rob1.3, rob1.4, rob1.5 in Foma (CIho 11333),
rob1.6 in Kristina (10).
Mutant used for description and seed stocks:
rob1.a in CIho 5649 (GSHO 707); rob1.a in Bowman (PI 483237)*8
(GSHO 2069).
References:
1. Bauman, A. 1926. Barley with orange lemmas. Bull. Appl. Bot. & Pl.
Breed. 16:181-186.
2. Buckley, G.F.H. 1930. Inheritance in barley with special reference to the
color of caryopsis and lemma. Sci. Agric. 10:460-492.
3. Falk, D.E. 1994. Creation of a marked telo 6S trisomic for chromosome 6. BGN
23:32.
4. Falk, D.E., M.J. Swartz, and K.J. Kasha. 1980. Linkage data with genes near
the centromere of barley chromosome 6. BGN 10:13-16.
5. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
proposed system of symbols for the collection of barley mutants at Svalöv.
Hereditas 62:409-414.
6. Hayashi, J., T. Konishi, I. Moriya, and R. Takahashi. 1984. Inheritance and
linkage studies in barley. VI. Ten mutant genes located on chromosomes 1 to 7,
except 3. Ber. Ohara Inst. landw. Biol., Okayama Univ. 18:227-250.
7. Ivanova, K.V. 1937. A new character in barley "third outer glume" -- Its
inheritance and linkage with color of the flowering glumes. Bull. Appl. Bot.,
Genet. & Pl. Breed. II. 7:339-353.
8. Kasha, K.G., D.E. Falk, and A. Ho-Tsai. 1978. Linkage data with genes on
chromosome 6. BGN 8:61-65.
9. Konishi, T. (unpublished).
10. Lundqvist. U. (unpublished).
11. Miyake, K., and Y. Imai. 1922. [Genetic studies in barley. 1.] Bot. Mag.,
Tokyo 36:25-38. [In Japanese.]
12. Myler, J.L., and E.H. Stanford. 1942. Color inheritance in barley. J. Am.
Soc. Agron. 34:427-436.
13. Ramage, R.T., C.R. Burnham, and A. Hagberg. 1961. A summary of
translocation studies in barley. Crop Sci. 1:277-279.
14. Shahla, A., J.W. Shim, and T. Tsuchiya. 1983. Association of the gene
o for orange lemma with the short arm of chromosome 6 (6S) in barley.
BGN 13:83-84.
Prepared:
C.R. Burnham. 1971. BGN 1:157.
Revised:
J.D. Franckowiak, T. Konishi, and U. Lundqvist. 1997. BGN 26:235-236.
Stock number: BGS 255
Locus name: Xantha seedling 5
Locus symbol: xnt5
Previous nomenclature and gene symbolization:
Yellow seedling (3).
Xantha seedling n = xn (4).
Inheritance:
Monofactorial recessive (1).
Located in chromosome 6HL (1, 5), about 25.0 cM distal from the rob
(orange lemma) locus (5), and about 18.8 cM distal from the lax-b
(laxatum-b) locus (2).
Description:
Seedlings have a pale yellow color and do not survive beyond the two or three
leaf stage (1). The xnt5.e gene must be maintained as a heterozygous
stock.
Origin of mutant:
A spontaneous mutant in Nepal (CIho 595) (3).
Mutational events:
xnt5.e in Nepal (Nepal I) (3).
Mutant used for description and seed stocks:
xnt5.e in Nepal (GSHO 43).
References:
1. Kramer, H.H., and B.A. Swomley Blander. 1961. Orienting linkage maps on the
chromosomes of barley. Crop Sci. 1:339-342.
2. Larsson, H.E.B. 1985. Linkage studies with genetic markers and some
laxatum barley mutants. Hereditas 103:269-279.
3. Robertson, D.W. 1933. Inheritance in barley. Genetics 18:148-158.
4. Robertson, D.W., G.A. Wiebe, and F.R. Immer. 1941. A summary of linkage
studies in barley. J. Am. Soc. Agron. 33:47-64.
5. Robertson, D.W., G.A. Wiebe, R.G. Shands, and A. Hagberg. 1965. A summary of
linkage studies in cultivated barley, Hordeum species: Supplement III,
1954-1963. Crop Sci. 5:33-43.
Prepared:
C.R. Burnham. 1971. BGN 1:158.
Revised:
J.D. Franckowiak. 1997. BGN 26:237.
Stock number: BGS 257
Locus name: Smooth awn 5
Locus symbol: raw5
Previous nomenclature and gene symbolization:
Smooth awn e = r,,e (1).
Smooth awn 2 = r2 (1).
Smooth awn 5 = r5 (2).
Inheritance:
Monofactorial recessive (1).
Located in chromosome 6HL (1, 2), over 31.5 cM distal from the rob
(orange lemma) locus (3).
Description:
Plants have fewer stigma hairs and seed set is reduced, but more barbs
developed on the central vein of the awn than in raw1.a plants (2). The
Bowman backcross-derived line contains both of raw1.a and raw5.e
genes for smooth awn. It has very smooth awns and very few stigma hairs, and
seed set is often less than 10%.
Origin of mutant:
An ethyl methanesulfonate induced mutant in Akashinriki (OUJ659, PI 467400)
(1).
Mutational events:
raw5.e in Akashinriki (OUM195) (1, 2); raw5.e plus rob1.a
in GSHO 785.
Mutant used for description and seed stocks:
raw5.e in Akashinriki (GSHO 771); raw5.e in Bowman (PI 483237)*6
(GSHO 2085).
References:
1. Konishi, T. 1971. A new smooth awn gene on chromosome 6. BGN 1:25-26.
2. Konishi, T. 1975. [Characteristics and inheritance of EMS-induced mutants.]
Nogaku Kenkyu 55:53-66. [In Japanese.]
3. Konishi, T. 1978. New linkage data on chromosome six of barley. BGN
8:71-72.
Prepared:
T. Konishi. 1976. BGN 6:131.
Revised:
T. Konishi and J. D. Franckowiak. 1997. BGN 26:238.
Stock number: BGS 258
Locus name: Dense spike 9
Locus symbol: dsp9
Previous nomenclature and gene symbolization:
Dense spike = la (1).
Dense spike 9 = l9 (1).
Inheritance:
Monofactorial recessive (1).
Located in chromosome 6HL (1), about 27.2 cM distal from the xnt5
(xantha seedling 5) locus (2), and over 26.9 cM distal from the Aat2
(aspartate aminotransferase 2) locus (4).
Description:
Extremely dense spikes are easily distinguished from normal types when grown in
the field or greenhouse (1). The spike often emerges from the side of the
sheath. Yield and seed size are reduced somewhat in the Bowman
backcross-derived line.
Origin of mutant:
An ethyl methanesulfonate induced mutant in Akashinriki (OUJ659, PI 467400)
(1).
Mutational events:
dsp9.i (OUM113) in Akashinriki (1); dsp9.j (OUM106), dsp9.k
(OUM107), dsp9.l (OUM115), dsp9.m (OUM118) in Akashinriki
(3).
Mutant used for description and seed stocks:
dsp9.i in Akashinriki (GSHO 1774); dsp9.i in Bowman (PI 483237)*7
(GSHO 2090).
References:
1. Konishi, T. 1973. Genetic analyses of EMS-induced mutants in barley. BGN
3:28-31.
2. Konishi, T. 1978. New linkage data on chromosome 6 of barley. BGN 8:71-72.
3. Konishi, T. (unpublished).
4. Yoshimi, R., and T. Konishi. 1995. Linkage analysis of several isozyme loci
in barley. BGN 24:35-37.
Prepared:
T. Konishi. 1976. BGN 6:132.
Revised:
T. Konishi and J.D. Franckowiak. 1997. BGN 26:239.
Stock number: BGS 260
Locus name: Chlorina seedling 11
Locus symbol: fch11
Previous nomenclature and gene symbolization:
Pale green = pg (2).
Chlorina seedling 11 = f11 (1).
Inheritance:
Monofactorial recessive (2).
Located in chromosome 6HL (3), about 6.1 cM distal from the rob (orange
lemma) locus (2, 3).
Description:
Seedlings are pale yellow-green and often have white blotches on the seedling
leaves. Plants remain light green until maturity (2). Plant vigor is good, but
plant developmental stages are delayed.
Origin of mutant:
An X-ray induced mutant in Himalaya (CIho 1312) obtained by Caldecott and North
at the University of Minnesota (1).
Mutational events:
fch11.t in Himalaya (GBC357 and GBC359) (1).
Mutant used for description and seed stocks:
fch11.t in Himalaya (GSHO 1738); fch11.t in Bowman (PI 483237)*6
(GSHO 2082).
References:
1. Burnham, C.R., and K.J. Kasha. 1979. BGS 260, Chlorina seedling, f11.
BGN 9:133.
2. Falk, D.E., and K.J. Kasha. 1979. The map location of a pale green mutant on
chromosome 6. BGN 9:17-18.
3. Kasha, K.J., and A. Ho-Tsia. 1977. Light green seedling mutant on chromosome
6. BGN 7:43.
Prepared:
C.R. Burnham and K.J. Kasha. 1979. BGN 9:133.
Revised:
J.D. Franckowiak. 1997. BGN 26:240.
Stock number: BGS 261
Locus name: Necrotic leaf spot 2
Locus symbol: nec2
Previous nomenclature and gene symbolization:
Mutant no 7 (1).
Necrotic leaf spots 2 = nec2b (2).
Inheritance:
Monofactorial recessive (1).
Located in chromosome 6HS (1), about 5.2 cM from the rob (orange lemma)
locus (3).
Description:
Small, dark brown necrotic spots appear on the leaves of field grown plants 3
to 6 weeks after germination. Margins of the spots have poor demarcation, and
the expression of necrotic spot is not good some years (3).
Origin of mutant:
An ethyl methanesulfonate induced mutant in Carlsberg II (CIho 10114) (1).
Mutational events:
nec2.b (Mutant no 7), nec2.c (Mutant no 9) in Carlsberg II (1).
Mutant used for description and seed stocks:
nec2.b in Carlsberg II (GSHO 1224).
References:
1. Jensen, J. 1971. Mapping of 10 mutant genes for necrotic spotting in barley
by means of translocations. p. 213-219. In R.A. Nilan (ed.) Barley
Genetics II. Proc. Second Int. Barley Genet. Symp., Pullman, WA, 1969.
Washington State Univ. Press, Pullman.
2. Jensen, J. 1981. Effect of temperature on genetic recombination in barley.
Hereditas 94:215-218.
3. Jensen, J. 1981. BGS 261, Necrotic leaf spots, nec2b. BGN 11:102.
Prepared:
J. Jensen. 1981. BGN 11:102.
Revised:
J.D. Franckowiak. 1997. BGN 26:241.
Stock number: BGS 262
Locus name: Curly 1
Locus symbol: cur1
Previous nomenclature and gene symbolization:
Inheritance:
Monofactorial recessive (2).
Located in chromosome 6HL (2), over 31.5 cM distal from the rob (orange
lemma) locus (3), not linked to rob (1).
Description:
All plant parts appear curved or twisted. Lemmas and awns are extremely curly.
The rachis is usually bent, and tillers are curved or wavy (3).
Origin of mutant:
Mutational events:
cur1.a in 48-cr cr-17 (Alb Acc 23, G395) (3).
Mutant used for description and seed stocks:
cur1.a in 48-cr cr-17 (GSHO 1705); cur1.a in Bowman (PI 483237)*4
(GSHO 2088).
References:
1. Kasha, K.G., D.E. Falk, and A. Ho-Tsai. 1978. Linkage data with genes on
chromosome 6. BGN 8:61-65.
2. Robertson, D.W., G.A. Wiebe, R.G. Shands, and A. Hagberg. 1965. A summary of
linkage studies in cultivated barley, Hordeum species: Supplement III.
1954-1963. Crop Sci. 5:33-43.
3. Walker, G.W.R., J. Dietrich, R. Miller, and K.J. Kasha. 1963. Recent barley
mutants and their linkages II. Genetic data for further mutants. Can. J. Genet.
Cytol. 5:200-219.
Prepared:
J.D. Franckowiak. 1997. BGN 26:242.
Stock number: BGS 263
Locus name: Curly 3
Locus symbol: cur3
Previous nomenclature and gene symbolization:
Inheritance:
Monofactorial recessive (3).
Located in chromosome 6HL (3), about 22.9 cM distal from the cul2
(uniculm 2) locus (2, 3).
Description:
Stem internodes are curved in a bow-like manner and awns are slightly coiled
(3). Seedlings elongate rapidly and leaves are nearly twice as long as normal.
Seedlings homozygous for the cur3.e allele do not show additional
elongation in response to gibberellic acid treatment (1). Plants in the Bowman
backcross-derived line are shorter (5/6 normal), have short spikes (2/3
normal), and yield much less.
Origin of mutant:
An X-ray induced mutant in Akashinriki (OUJ659, PI 467400) isolated by A
Yamashita (3).
Mutational events:
cur3.e in Akashinriki (OUM301) (2, 3).
Mutant used for description and seed stocks:
cur3.e in Akashinriki (GSHO 1707); cur3.e in Bowman (PI 483237)*6
(GSHO 2087).
References:
1. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report: Semidwarf
genes: A listing of genetic stocks. BGN 21:116-127.
2. Hayashi, J., T. Konishi, I. Moriya, and R. Takahashi. 1984. Inheritance and
linkage studies in barley VI. Ten mutant genes located on chromosomes 1 to 7,
except 3. Ber. Ohara Inst. landw. Biol., Okayama Univ. 18:227-250.
3. Hayashi, J., R. Takahashi, I. Moriya, and T. Nobuoka. 1978. Linkage studies
of two mutant genes on chromosomes 1 and 6. BGN 8:48-50.
Prepared:
J.D. Franckowiak and T. Konishi. 1997. BGN 26:243.
Stock number: BGS 264
Locus name: Mottled leaf 5
Locus symbol: mtt5
Previous nomenclature and gene symbolization:
Inheritance:
Monofactorial recessive (1).
Located in chromosome 6HL (1), about 6.4 cM distal from the rob (orange
lemma) locus (1).
Description:
Mottled bands occur on the leaf blade and sheath and are retained until heading
(1). The first few seedling leaves often do not show the mottled trait. Plants
are much less vigorous than normal sibs.
Origin of mutant:
An ethyl methanesulfonate induced mutant in Akashinriki (OUJ659, PI 467400)
(1).
Mutational events:
mtt5.f in Akashinriki (OUM022) (1).
Mutant used for description and seed stocks:
mtt5.f in Akashinriki (GSHO 2410); mtt5.f in Bowman (PI 483237)*6
(GSHO 2084).
References:
1. Konishi, T. 1978. New linkage data on chromosome 6 of barley BGN 8:71-72.
Prepared:
T. Konishi and J.D. Franckowiak. 1997. BGN 26:244.
Stock number: BGS 265
Locus name: Necrotic leaf spot 3
Locus symbol: nec3
Previous nomenclature and gene symbolization:
Necrotic leaf spot 3 = nec3a (2, 3, 6).
Necrotic leaf spot 3 = nec3b (3, 6).
Inheritance:
Monofactorial recessive (2, 5).
Located in chromosome 6HS (2, 5), about 29.2 cM distal from the rob
(orange lemma) locus (1, 2, 4), and about 16.7 cM distal from the msg36
(male sterile genetic 36) locus (1).
Description:
Tan or brown necrotic blotches develop on the leaf sheath and blade prior to
heading and persist to maturity (2, 3). Plants homozygous for nec3.d
develop brown blotches having irregular margins. Plants homozygous for
nec3.e develop large tan or faded blotches having distinct margins. After
maturation, plants expressing the nec3.d gene can be identified easily
by brown blotches on the leaves, but those expressing the nec3.e gene
are difficult to identify. In the Bowman backcross-derived lines, vigor is
reduced more in nec3.e plants than in nec3.d ones.
Origin of mutant:
An X-ray induced mutant in Proctor (PI 280420) (2, 5).
Mutational events:
nec3.d in Proctor (1339/62) (2, 5); nec3.e (1558/74) in Villa (PI
399506) (3).
Mutant used for description and seed stocks:
nec3.d in Proctor (GSHO 1330); nec3.e in Villa (GSHO 2423);
nec3.d in Bowman (PI 483237)*4 (GSHO 2065); nec3.e in Bowman*3
(GSHO 2066).
References:
1. Falk, D.E., M.J. Swartz, and K.J. Kasha. 1980. Linkage data with genes near
the centromere of barley chromosome 6. BGN 10:13-16.
2. Fischbeck, G., and H. Häuser. 1976. Research notes. BGN 6:28-29.
3. Fischbeck, G., and H. Häuser. 1978. Cytogenetic studies of some induced
barley mutants. BGN 8:36-37.
4. Häuser, H., and G. Fischbeck. 1980. Genetic analysis of induced
mutations. BGN 10:30-31.
5. Häuser, J., and G. Fischbeck. 1976. Untersuchungen zur Lokalisierung
einiger Mutationen von Gerste (Hordeum sativum). Z. Pflanzenzücht.
77:269-280.
6. Søgaard, B., and P. von Wettstein-Knowles. 1987. Barley: genes and
chromosomes. Carlsberg Res. Comm. 52:123-196.
Prepared:
J.D. Franckowiak and U. Lundqvist. 1997. BGN 26:245.
Stock number: BGS 266
Locus name: Erectoides-e
Locus symbol: ert-e
Previous nomenclature and gene symbolization:
Erectoides-17 = ert-17 (1).
Inheritance:
Monofactorial recessive (1, 4).
Located in chromosome 6HL (2, 3, 4), over 50.0 cM from the centromere (5).
Description:
Spikes are very compact with rachis internode length values from 1.2 to 1.5 mm.
Plants are about 2/3 normal height. Partial fertility and reduced vigor are
noted among ert-e mutants. The peduncle is very short and spikes often
emerge from the side of the flag sheath (3, 5). A large deficiency of mutant
plants is frequently noted in segregating populations (3). Spike density
decreases greatly when plants are treated with GA3 as the flag leaf
emerges (6). The possibility of allelism at the dsp9 (dense spike 9)
locus has not been determined.
Origin of mutant:
An X-ray induced mutant in Bonus (PI 189763) (1).
Mutational events:
ert-e.17, -e.65 in Bonus (1); ert-e.94, -e.143 in Bonus,
-e.331, -e.396 in Foma (CIho 11333) (5).
Mutant used for description and seed stocks:
ert-e.17 in Bonus (GSHO 477); ert-e.17 in Bowman (PI 483237)*6
(GSHO 2091).
References:
1. Hagberg, A., Å. Gustafsson, and L. Ehrenberg. 1958. Sparsely contra
densely ionizing radiations and the origin of erectoid mutants in barley.
Hereditas 44:523-530.
2. Hagberg, A., G. Persson, and A. Wiberg. 1963. Induced mutations in the
improvement of self-pollinated crops. p. 105-124. In E. Åkerberg
and A. Hagberg (eds.) Recent Plant Breeding Research. Svalöf 1946-1961.
Almqvist & Wiksell, Stockholm.
3. Persson, G. 1969. An attempt to find suitable genetic markers for the dense
ear loci in barley I. Hereditas 62:25-96.
4. Persson, G., and A. Hagberg. 1962. Linkage studies with the erectoides loci.
Barley Newsl. 5:46-47.
5. Persson, G., and A. Hagberg. 1969. Induced variation in a quantitative
character in barley. Morphology and cytogenetics of erectoides mutants.
Hereditas 61:115-178.
6. Stoy, V., and A. Hagberg. 1967. Effects of growth regulators on ear density
mutants in barley. Hereditas 58:359-384.
Prepared:
U. Lundqvist and J.D. Franckowiak. 1997. BGN 26:246.
Stock number: BGS 267
Locus name: Reaction to Puccinia hordei 11 (barley leaf rust)
Locus symbol: Rph11
Previous nomenclature and gene symbolization:
Inheritance:
Monofactorial dominant (1).
Located in chromosome 6HL (1), about 7.0 cM proximal from the Acp3 (acid
phosphatase 3) locus, and about 11.0 cM proximal from the Dip2
(dipeptidase 2) locus (1).
Description:
The seedling reaction varies from a necrotic fleck to a moderate sized
uredinium with heterozygotes having an intermediate reaction (1). Culture Aust
220 from Australia is required to detect a resistant reaction in allelism tests
and backcrosses. Seedlings tend to show a moderate sized uredinium as a
reaction to many isolates of Puccinia hordei.
Origin of mutant:
Natural occurrence in accession 'Maalot 17' of Hordeum vulgare subsp
spontaneum, but isolated as a Clipper backcross-derived line containing one
of two Rph genes in the original accession (1).
Mutational events:
Rph11.p from Hordeum vulgare subsp spontaneum in Clipper*4
as C67 (1).
Mutant used for description and seed stocks:
Rph11.p in Clipper C67 (GSHO 1589); Rph11.p in Bowman (PI
483237)*2 (GSHO 2092).
References:
1. Feuerstein, U., A.H.D. Brown, and J.J. Burdon. 1990. Linkage of rust
resistance genes from wild barley (Hordeum spontaneum) with isozyme
markers. Plant Breed. 104:318-324.
Prepared:
J.D. Franckowiak and Y. Jin. 1997. BGN 26:247.
Stock number: BGS 268
Locus name: Laxatum-b
Locus symbol: lax-b
Previous nomenclature and gene symbolization:
Laxatum-1 = lax-1 (1, 2).
Inheritance:
Monofactorial recessive (2).
Located in chromosome 6HL (3), about 27.3 cM distal from the rob (orange
lemma) locus, and about 18.8 cM proximal from the xnt5 (xantha seedling
5) locus (3).
Description:
Plants are weak and short (3/4 normal), spikes are lax and spikelet number is
reduced. Seeds are small and thin and have a shrunken endosperm (xenia), which
is detectable in the heterozygous condition (2). Treatment of leaves after
tillering with GA3 increases rachis internode length (5). Seed set
is reduced in the Bowman backcross-derived line.
Origin of mutant:
A neutron induced mutant in Bonus (PI 189763) (4).
Mutational events:
Mutant used for description and seed stocks:
lax-b.1 in Bonus (GSHO 1776); lax-b.1 in Bowman (PI 483237)*7
(GSHO 2083).
References:
1. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
proposed system of symbols for the collection of barley mutants at Svalöv.
Hereditas 62:409-414.
2. Larsson, H.E.B. 1985. Morphological analysis of laxatum barley
mutants. Hereditas 103:239-253.
3. Larsson, H.E.B. 1985. Linkage studies with genetic markers and some
laxatum barley mutants. Hereditas 103:269-279.
4. Lundqvist, U. (unpublished).
5. Stoy, V., and A. Hagberg. 1967. Effects of growth regulators on ear density
mutants in barley. Hereditas 58:359-384.
Prepared:
U. Lundqvist and J.D. Franckowiak. 1997. BGN 26:248.
Stock number: BGS 269
Locus name: High lysine 6
Locus symbol: lys6
Previous nomenclature and gene symbolization:
Inheritance:
Monofactorial recessive (1, 2).
Located in chromosome 6H (2).
Description:
At the hard dough stage, kernels homozygous for the lys6.i gene develop
a depression near the center of the lemma, which becomes progressively more
distinct as the kernels mature. Mutant plants produce grain that has a 12%
increase in lysine content (1). Shrunken endosperm and high lysine content have
a pleiotropic association in stocks homozygous for the lys6.i gene (1,
2).
Origin of mutant:
A gamma-ray induced mutant in Bomi (PI 43371) (1).
Mutational events:
lys6.i in Bomi (Risø 527) (1, 3).
Mutant used for description and seed stocks:
lys6.i in Bomi (GSHO 1786); lys6.i in Bowman (PI 483237)*3 (GSHO
2077).
References:
1. Doll, H. 1976. Genetic studies of high lysine barley mutants. p. 542-546.
In H. Gaul (ed.) Barley Genetics III. Proc. Third Int. Barley Genet.
Symp., Garching, 1975. Verlag Karl Thiemig, München.
2. Jensen, J. 1979. Chromosomal location of one dominant and four recessive
high-lysine genes in barley mutants. Vol. 1. p. 89-96. In Seed Protein
Improvement in Cereals and Grain Legumes. Proc. Int. Symp., Neuherberg,
Germany, 1978. Int. Atomic Energy Agency, Vienna.
3. Jensen, J., and H. Doll. 1979. Gene symbols for barley high-lysine mutants.
BGN 9:33-37.
Prepared:
J.D. Franckowiak and U. Lundqvist. 1997. BGN 26:249.
Stock number: BGS 270
Locus name: Albino seedling 14
Locus symbol: abo14
Previous nomenclature and gene symbolization:
Albino seedling f = alb,,f (3).
Albino seedling q = alb,,q (4).
Inheritance:
Monofactorial recessive (3, 4).
Located in chromosome 6HL (1, 2), about 12.5 cM distal from the rob
(orange lemma) locus (2), and about 8.1 cM distal from the sex1
(shrunken endosperm xenia 1) locus (1).
Description:
Seedlings have a white color and die at the two to three leaf stage (3). The
abo14.q gene must be maintained as a heterozygous stock.
Origin of mutant:
A spontaneous mutant in Shabet (CIho 13827) (3).
Mutational events:
abo14.q in Shabet (G365) (3, 4).
Mutant used for description and seed stocks:
abo14.q in Shabet (GSHO 586).
References:
1. Falk, D.E., M.J. Swartz, and K.J. Kasha. 1980. Linkage data with genes near
the centromere of barley chromosome 6. BGN 10:13-16.
2. Kasha, K.J., D.E. Falk, and A. Ho-Tsai. 1978. Linkage data with genes on
chromosome 6. BGN 8:61-65.
3. Rahman, M.M. 1973. Balanced male sterile-lethals systems for hybrid barley
production. Ph.D. Thesis. Montana State Univ., Bozeman.
4. Rahman, M.M., and R.F. Eslick. 1976. Linkage of spontaneous mutant seedling
lethal genes with genetic male sterile genes. BGN 6:53-58.
Prepared:
J.D. Franckowiak and D.E. Falk. 1997. BGN 26:250.
Stock number: BGS 271
Locus name: Albino seedling 15
Locus symbol: abo15
Previous nomenclature and gene symbolization:
Albino seedling t = alb,,t (2).
Inheritance:
Monofactorial recessive (2).
Located in chromosome 6HS (1, 2), over 28.9 cM distal from the msg6
(male sterile genetic 6) locus, and over 39.0 cM distal from the rob
(orange lemma) locus (2).
Description:
Seedlings have a white color and die at the two to three leaf stage (1). The
abo15.t gene must be maintained as a heterozygous stock.
Origin of mutant:
A diethyl sulfate induced mutant in a stock of Betzes (PI 129430) that was
trisomic for chromosome 6 (1).
Mutational events:
abo15.t in Betzes trisomic for chromosome 6 (1).
Mutant used for description and seed stocks:
abo15.t in Betzes trisomic for chromosome 6.
References:
1. Clark, D.R., and R.T. Ramage. 1976. An induced albino mutation on chromosome
6. BGN 6:8-9.
2. Falk, D.E., M.J. Swartz, and K.J. Kasha. 1980. Linkage data with genes near
the centromere of barley chromosome 6. BGN 10:13-16.
Prepared:
J.D. Franckowiak and D.E. Falk. 1997. BGN 26:251.