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Genetic And Molecular Characterization Of Vernalization Genes Vrn-A1, Vrn-B1, And Vrn-D1 In Spring Wheat Germplasm From The Pacific Northwest Region Of The U.S.A., Dipak K. Santra, M. Santra, R. E. Allen, K. G. Campbell, K. K. Kidwell
Genetic And Molecular Characterization Of Vernalization Genes Vrn-A1, Vrn-B1, And Vrn-D1 In Spring Wheat Germplasm From The Pacific Northwest Region Of The U.S.A., Dipak K. Santra, M. Santra, R. E. Allen, K. G. Campbell, K. K. Kidwell
Panhandle Research and Extension Center
The objective of this study was to determine the Vrn-1 allelic composition of spring wheat germplasm from the Pacific Northwest region of the USA. Individual plants from 56 spring wheat lines were crossed to near-isogenic tester lines carrying the dominant allele Vrn- A1, Vrn-B1 or Vrn-D1. F2 progeny were evaluated for growth habit in the field and Vrn-1 allelic composition was determined through chisquare analysis. Lines also were analysed with DNA sequence-based Vrn-1 allele-specific markers. A majority of the germplasm carried the dominant allele Vrn-A1a alone or in combination with Vrn-B1, Vrn-D1 or Vrn-B3 alleles. Vrn-B1 and Vrn-D1 were …