| Gene Symbold |
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Class
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Level 1
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Response to Vernalization
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Level 2
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Level 3
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Level 4
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Symbol
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Wild Type
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Vrn-A1a
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Allele
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Synonyms
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Vrn1{1172}, Sk{002}
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Chromosomes
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5AL{775,883}
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Germplasms
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i:Triple Dirk D (GenBank AY616458 & AY616459), s:Kharkov 22MC*/Rescue 5A{358}, s:Winalta*8/Rescue 5A{876}, s:Rescue*/Cadet 5A Vrn-D1a Vrn-B1a{1221}, v:Cadet{1221}, v:Conley{1171}, v:Diamant II{885}, v:Falcon{1172}, v:Koga II{1611}, v:Kolben{001,1171,1172}, v:Konosu 25{460}, v:Marquis{001}, v:Reward{1171}, v:Saitama 27{460}, v:Saratov 29{883}, v:Saratovskaya 29{885}, v:Saratovskaya 210{883}, v:Shabati Sonora{885}, v:Thatcher{1171}, v:WW15{1172}, v2:Shortandinka Vrn-B1a{885}, v2:Takari Vrn-B1a{253}, v2:Triple Dirk Vrn-B1a{1173}, v2:Hope Vrn-B4a{1424}, ma:Vrn-A1 - 7.5 cM - Xwg644-5A{726}, ma:Located mid 5A cosegregating with Xcdo504-5A, Xwg644-5A and Xpsr426-5A{419}, ma:Vrn-A1 - 0.8 cM - Xbcd450-5A/Xrz395-5A - 4.2 cM - Xpsr426-5A{9903}
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Comment
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Cultivars possessing Vrn-A1a are insensitive to vernalization. Vrn-A1a is epistatic to other genes. According to {1221}, Vrn-A1a is not always fully dominant and not always epistatic. Kuspira et al. {745} attributed single gene variation in T. monococcum to the Vrn-A1a locus. Multiple recessive alleles were suggested {745}. Vrn-Am1 was mapped on the long arm of chromosome 5Am closely linked to the same RFLP markers as Vrn-A1 {279}. Vrn-Am1 was mapped to the Xcdo504-5A - Xpsr426-5A region {0312}. In the opinion of the curators this location may not be correct
Multiple alleles also were reported in {9930}, and the dominant allele of Novosibirskaya 67 and the weaker dominant allele of Pirotrix 28 were designated Vrn1a and Vrn1b, respectively.
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