ALLELIC DIVERSITY OF THE Ppd AND VRN GENES INVOLVED IN CONTROL OF THE DURATION OF SHOOTINGEARING STAGE IN DAGESTANIAN BARLEY ACCESSIONS

The period between shooting and earing stages was investigated in a group of 265 barley accessions from Dagestan. The accessions k-15008 and k-15013 were characterized by the highest development rate in South Dagestan. In Northwest Russia the early accession k-15027 was revealed. In 207 barley accessions the dominant and recessive alleles of the Ppd and VRN genes involved in control of the period between shooting and earing stages were identified with the use of allele-specific molecular markers. Twenty two groups with different allelic combinations of the loci were revealed. The most numerous groups possessed the Ppd-H1Ppd-H2vrn-H1 Vrn-H2vrnH3 and ppd-H1Ppd-H2vrn-H1Vrn-H2vrnH3 allelic combinations and included 59 and 91 accessions correspondingly.