Angela Fechner et al - Boundaries and Clines in the West Eurasian Y-Chromosome Landscape: Insights From the European Part of Russia // AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, 2008Абстракт
Previous studies of Y chromosome variation
have revealed that western Europe, the Volga-Ural
region, and the Caucasus differ dramatically with respect
to Y-SNP haplogroup composition. The European part of
Russia is situated in between these three regions; to
determine if these differences reflect clines or boundaries
in the Y-chromosome landscape, we analyzed 12 Y-SNPs
in 545 males from 12 populations from the European part
of Russia. The majority of Russian Y chromosomes (from
74% to 94%) belong to three Y chromosomal lineages
[I-M170, R1a1-M17, and N3-TAT] that are also frequent
in the rest of east Europe, north Europe, and/or in the
Volga-Ural region. We find significant but low correlations
between haplogroup frequencies and the geographic
location of populations, suggesting gradual change in the
Y chromosome gene pool across western Eurasia. However,
we also find some significant boundaries between
populations, suggesting that both isolation and migration
have influenced the Y chromosome landscape