The Genetic Effect of Wheat Vernalization Gene

doi:10.7668/hbnxb.2011.06.001

Abstract

Abstract: In order to understand the genetic effect of vernalization gene Vrn-1， the effect of vernalization treatment on development of 15 wheat cultivars was studied，and the allelic composition of the Vrn-1gene in 5A，5B and 5D genomes in above cultivars were analyzed using the sequence-specific PCR． The results indicated that there is significantly difference in heading stages of genotype with different Vrn-1allele combinations． The genetic effect of three dominant Vrn-1alleles is follows: Vrn-A1>Vrn-D1>Vrn-B1: the vernalization genes have additive effects， the presence of a dominant Vrn-1allele in any genotype confers spring growth habit，whereas the presence of recessive alleles in the homozygous state confers winter growth habit． Therefore， the winter-spring character of cultivars can be confirmed according to the combination of vernalization genes．

Key words: Wheat, Vernalization gene, Genetic effect

CLC Number:

S512． 03

SUN Guo-zhong, YOU Guang-xia, WU Shu-zhen, ZHANG Xiu-ying, WANG Hai-bo, XIAO Shi-he. The Genetic Effect of Wheat Vernalization Gene[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(6): 1-5. doi: 10.7668/hbnxb.2011.06.001.

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