| If you would like to add your favorite floral mutant to this page, please contact the Fletcher lab. |
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| ag-3 |
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AGAMOUS: Floral homeotic gene; also affects floral meristem determinacy. Encodes a MADS-box transcription factor (Yanofsky et al., Nature 1990). Ortholog of PLENA in Antirrhinum. Maps to the middle of chr. 4.
ag-3: Isolated by EMS in L-er. Strong allele: 4 sepals, 9-10 petals, then a new flower forms with 4 or fewer petals alternating with 10 or fewer petals. Flower meristem sometimes fasciates. Male and female sterile. Slight semidominance under healthy conditions: heterozygous ag-3 plants generate some flowers with more than 2 carpels (Koorneef et al., J. Hered. 1983; Bowman et al., Plant Cell 1989, Development 1991). |
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| ap1-1 |
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APETALA1: Floral homeotic and floral meristem identity gene. Encodes a MADS-box transcription factor (Mandel et al., Nature 1992). Ortholog of SQUAMOSA in Antirrhinum. Maps to the bottom of chr. 1.
ap1-1: Isolated by EMS in L-er. Strong allele: bract-like sepals, almost always no petals, secondary flowers inside flower. Male and female fertile. (Koornneef et al., J. Hered. 1983; Irish and Sussex, Plant Cell 1990; Bowman et al., Development 1993). Lesion: splice accepter site in 3rd intron (Mandel et al., Nature 1992). |
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| ap2-2 |
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APETALA2: Floral homeotic gene, possible floral meristem identity gene. Encodes a transcription factor containing AP2 Domains (Jofuku et al., Plant Cell 1994; Weigel, Plant Cell 1995). Maps to the bottom of chr. 4.
ap2-2: Isolated by EMS in L-er. Strong allele: first whorl organs reduced in number and are carpels, second whorl absent, third whorl stamens severely reduced in number and sometimes absent, and fourth whorl carpels often unfused. Stamens and fused carpels on mutant plants are fertile; overall severely reduced fertility (Bowman et al., Development 1991). |
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| ap3-3 |
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APETALA3: Floral homeotic gene. Encodes a MADS-box transcription factor (Jack et al., Cell 1992). Ortholog of DEFICIENS in Antirrhinum. Maps to chr. 3.
ap3-3: Isolated by EMS in L-er. Strong allele: petals fully converted to sepals, third whorl organs filamentous or carpels and often fused to fourth whorl carpels. Male sterile, female fertile. Lesion: Gln18 to stop (Jack et al., Cell 1992). |
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| clv1-4 |
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CLAVATA1: Increased apical and floral meristem size, fasciated stems (Leyser and Furner, Development 1992). Extra organs in all whorls, predominantly stamens and carpels. Encodes a LRR receptor serine/threonine kinase (Clark et al., Cell 1997). Maps to the bottom of chr. 1.
clv1-4: Isolated by X-ray mutagenesis in either Estland or Limburg. Strongest clv1 allele: overproliferation of main stem, many more extra floral organs, multiple whorls of carpels. Male and female fertile (McKelvie, Radiation Biology 1962, Clark et al., Development 1993). Lesion: G200 to E (Clark et al., Development 1997). |
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| clv2-3 |
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CLAVATA2: Increased floral organ number, especially carpels. Phenotype of known alleles are not as severe as intermediate or strong clv1 or clv3 alleles. Encodes a LRR receptor-like protein (Jeoung et al., Plant Cell 1999). Maps to the bottom of chr. 1.
clv2-3: Isolated by fast-neutron mutagenesis of Col. Strong clv2 allele with extra carpels in all flowers and occasional extra organs in other three whorls (Kayes and Clark, Development 1999). |
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| clv3-2 |
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CLAVATA3: Increased apical and floral meristem size, fasciated stems. Extra organs in all whorls, predominantly stamens and carpels. Phenotypes of mutants similar to clv1. Encodes a putative ligand for CLV1 (Fletcher et al., Science 1999). Tightly linked to er on chr. 2.
clv3-2: Isolated by gamma ray mutagenesis of L-er. Strongest allele: strongly fasciated stem and numerous extra organs. Male and female fertile (Clark et al., Development 1995). Lesion: breakpoint in last exon (Fletcher et al., Science 1999). |
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| fil-1 |
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FILAMENTOUS FLOWER. Affects flower formation and development. Encodes a YABBY gene (Sawa et al., Genes & Dev. 1999; Chen et al. Development 1999). Maps to chr. 2.
fil-1: Isolated by EMS in L-er. Isolation name fl54. Reduced and/or mosaic flowers; reduced fertility. (Komaki et al., Development 1988; Sawa et al., Plant Cell 1999). |
