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GrainGenes Gene Report: Vrn-B3 (Triticum)

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Gene
Vrn-B3 (Triticum)  [ Marker Report ]
Synonym
Previous nameVrn5 (Triticum)
ReferenceYan L et al. (2006) The wheat and barley vernalization gene VRN3 is an orthologue of FT. Proceedings of the National Academy of Sciences, USA 103:19581-19586.
SynonymVrn-B3
Gene Class
Response to photoperiod
Response to vernalization (Triticum)
Allele
vrn-B3 (Triticum)
Locus
Vrn-B3
Candidate Locus
TraesCS7B02G013100.1
Reference
ReferenceCheng S et al. (2024) Harnessing Landrace Diversity Empowers Wheat Breeding for Climate Resilience Nature.
ReferenceYan L et al. (2006) The wheat and barley vernalization gene VRN3 is an orthologue of FT. Proceedings of the National Academy of Sciences, USA 103:19581-19586.
ReferenceSoria MA and Dubcovsky J MAS Wheat. Bringing Genomics to the Wheat Fields. Abiotic Stress and Agronomic Traits. Vernalization requirement.
URL
Vrn-B3 gene at Komugi: Catalogue of Gene Symbols for Wheat
Chromosome Arm
7BS
ReferenceYan L et al. (2006) The wheat and barley vernalization gene VRN3 is an orthologue of FT. Proceedings of the National Academy of Sciences, USA 103:19581-19586.
Comment
The Vrn-B3 locus (formerly known as Vrn-5 or Vrn-B4) is homologous to the Arabidopsis FT gene. The dominant Vrn-B3 allele in Hope has a retrotransposon insertion in the TaFT promoter (GenBank DQ890165). Transformation of winter wheat Jagger with the dominant Vrn-B3 significantly accelerated flowering. Different Hope seed sources were heterogeneous for this insertion. The retrotransposon insertion in the TaFT promoter is present in the CS (Hope 7B) (Yan et al., 2006).
Vrn-B3 is completely linked to TaFT and 1 cM distal to Xabc158-7B on the region of 7BS proximal to the translocation with homoeologous group 5 (Yan et al., 2006).
Clone
TraesCS7B02G013100
Sequence
DQ890165
TraesCS7B02G013100.1
Data Curator
Cooper, LaurelNov-2020

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