Does genetic memory of the Adyghe gene pool composition perpetuate itself? Genetic portraits of Adyghe tribes drawn from the new data about Y-chromosome polymorphisms

The purpose of the study is to evaluate possibility preserving genetic memory original architectonics Adygeans gene pool by studying modern pools ten clan groups. Materials and methods. Ten tribal populations as well Ubykhs (total N=616) were studied a unified informative panel SNP-markers Y-chromosome (59 SNP 17 STR). Genetic portraits each population created, their position in multidimensional space was evaluated based on data 34 identified Y-haplogroups. For most characteristic haplogroups, cartographic analysis performed phylogenetic networks created. Results. Four haplogroups found all populations, making up three quarters general pool: G2-YY1215(43%), R1a-M198* (13%), G2-YY9632 (9%), J2-M172* (7%). In scaling distinguished clusters: "Western" united Shapsugs Ubykhs; "Central" – Abadzekhs, Temirgoevs, Khatukaevs; "Eastern" Ygerukhaevs, Kabardins Adygea. Bzhedugs, now conglomerate various tribes, occupy precisely an intermediate between 'Western' 'Central' clusters. Mamkhegs Besleneys not included any clusters, but joined "Eastern cluster" results other multivariate atlas variability revealed two main trends variability: for haplogroup G2-YY1215 trend frequency decrease from west east (from 82% 13% Adygea), opposite small west. Conclusion. It shown first time that dominant whole, practically Its east, disappearing already Ossetians. allow us consider "marking" Adyghe population. clusters relative correspond historical ethnological reconstruct contours initial Adygeans. indicates presence common Adygean "prapopulation" groups, which existed about 3000 years ago demographic growth 1500-2000 ago.