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GrainGenes Allele Report: vrn-A1 (Triticum)

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Allele	vrn-A1 (Triticum)
Reference	Diaz A et al. (2012) Copy Number Variation Affecting the Photoperiod-B1 and Vernalization-A1 Genes Is Associated with Altered Flowering Time in Wheat (Triticum aestivum). PLOS ONE 7:e33234. Fu D et al. (2005) Large deletions within the first intron in VRN-1 are associated with spring growth habit in barley and wheat. Molecular Genetics and Genomics 273:54-65.
Gene Class	Response to vernalization (Triticum)
Gene	Vrn-A1 (Triticum)
Comment	Copy number variation for vrn-A1 was detected in IL369 (2 copies) (Fu et al., 2005), Malacca (2 copies) and Heeward (3 copies). Higher copy number was associated with later flowering or with increasing requirement for vernalization (i.e. longer exposure to cold is needed to achieve full vernalization) (Diaz et al., 2012).
Probe	Exon7_C/T_Vrn-A1 Vrn-A1b-Marq Vrn-A1_9K0001 Vrn1_new
URL	vrn-A1 allele at Komugi: Catalogue of Gene Symbols for Wheat
Data Curator	Cooper, Laurel Jan-2020

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