Genetic and molecular characterization of the VRN2 loci in tetraploid wheat.

  title={Genetic and molecular characterization of the VRN2 loci in tetraploid wheat.},
  author={Assaf Distelfeld and Gabriela Tranquilli and Chengxia Li and Liuling Yan and Jorge Dubcovsky},
  journal={Plant physiology},
  volume={149 1},
Winter wheat (Triticum spp.) varieties require long exposures to low temperatures to flower, a process called vernalization. The VRN2 locus includes two completely linked zinc finger-CCT domain genes (ZCCT1 and ZCCT2) that act as flowering repressors down-regulated during vernalization. Deletions or mutations in these two genes result in the elimination of the vernalization requirement in diploid wheat (Triticum monococcum). However, natural allelic variation in these genes has not been… CONTINUE READING


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