Open AccessGENETIC DIVERSITY OF SNP LOCI IN POPULATIONS OF OAK IN THE SOUTHERN FOREST-STEPPE ZONE OF RUSSIA
Author(s) -
Бернд Деген,
Yulai Yanbaev,
Ruslan Ianbaev,
Svetlana Bakhtina,
Albina Tagirova
Publication year - 2020
Publication title -
vestnik permskogo universiteta. seriâ biologiâ
Language(s) - English
Resource type - Journals
ISSN - 1994-9952
DOI - 10.17072/1994-9952-2020-3-198-203
Subject(s) - genetic diversity , inbreeding , biology , steppe , loss of heterozygosity , ecology , genetic structure , quercus robur , population , genetic variation , allele , genetics , demography , gene , sociology
The level of genetic diversity of populations of pedunculate oak (Quercus robur L.) of the southern part of the forest-steppe zone of Russia was studied using 79 SNP loci, developed on the base of the new genera-tion DNA sequencing technology ddRAD. Despite the significant decrease of the area of oak forests in the agricultural period, populations from the Lipetsk, Orel and Penza regions maintain a comparatively high and relatively similar levels of genetic diversity (observed heterozygosity HO = 0.319–0.344, ex-pected heterozygosity HE = 0.317–0.342, allelic diversity υа = 1.537–1.561). The observed distribution of genotypes corresponds to the frequencies expected by the Hardy-Weinberg equilibrium, the inbreeding coefficient varies from F = ‒ 0.019 to = F = + 0.011. The genetic distance of Gregorius between the sam-ples Orel and Penza (d0 = 0.138), which are geographically the most distant from each other, were statisti-cally significant. The results obtained are discussed in regard to the dynamics of oak forests in the histori-cal past and to problems of conservation and rational use of the gene pool of local populations.