Petiolate Oak (Quercus robur) polymorphism evaluation by SSR-analyzing

Abstract

The results of molecular-genetic studies of populations of oak petiolate from 11 regions of Russia are presented. Using 10 microsatellite primers, 1049 alleles were identified. The studied samples differ insignificantly in the observed and effective number of alleles. To assess the genetic variability of populations, an indicator of expected and observed heterozygosity was calculated, which indicates a deficiency of heterozygous genotypes. It was found that each individual tree in the studied populations shows 87 % deficiency of heterozygotes relative to the population and 85,7 % relative to the species. It was noted that among all the studied alleles, 81 % were unique, and they occur only in one locus. The dendrogram based on the genetic distance shows clustering of the populations of the oak petiolate into several separate groups.