Combination and Distribution of Vernalization and Photoperiod Genes in Wheat Varieties from Gansu Province
In order to survey the distribution of vernalization and photoperiod genes in wheat varieties from Gansu province,96 varieties were characterized with STS markers for the vernalization and photoperiod loci VRN-A1,VRN-B1,VRN-D1,VRN-B3 and PPD-D1.There were eleven types of combination of vernalization and photoperiod genes in these varieties.Each region contained different frequencies of each combination type.Ppd-D1a showed highest frequency,followed by Vrn-A1/Vrn-B1/Ppd-D1a.There were eleven types of combination in spring wheat region.Vrn-A1/Vrn-B1/Ppd-D1a type showed the highest frequency,followed by Ppd-D1a.Vrn-A1/Vrn-B1/Ppd-D1a,Vrn-A1/Vrn-B1 and Ppd-D1a showed the highest frequencies in Hexi irrigated spring wheat region,central arid spring wheat region and Taomin cold spring wheat region,respectively.There was no Vrn-A1 allele in winter wheat region,where only three types of combination (Ppd-D1a,Vrn-B1/Ppd-D1a,Vrn-D1/Pp-D1a) can be detected.Ppd-D1a showed the highest frequency,followed by Vrn-B1/Ppd-D1a type.Ppd-D1a type accounted the highest frequencies in Longnan winter wheat region,Wei river upstream winter region and Jing river upstream winter wheat region for 46.2%,93.6%,and 100%,respectively.
WheatVernalization genesPhotoperiod geneCombination of allelic variation
NETL
NSTL
万方数据
维普
