Archeological and paleontological evidence suggests that South Siberia is an area where the most ancient contacts occurred between the members of Caucasoid and Mongoloid peoples. These contacts have substantially affected the racial type of most populations of Eurasia. Analysis of mitochondrial DNA (mtDNA) inherited without recombination in the maternal line has shown that Southern Siberian populations have developed on a heterogeneous genetic basis. This is a result of not only the diversity of Mongoloid components that were either indigenous to the gene pools of Siberian populations since the Paleolithic Age or introduced in different periods of time from Central Europe and East Asia, but also the presence of the Caucasoid component expressed in different degrees in most populations that have contributed into this heterogeneity [1, 2]. The nonrecombining portion of the Y chromosome inherited in the paternal line is another genetic system widely used for studying the population genetic history. The Y chromosome polymorphism has been analyzed in a wide spectrum of Asian populations; nevertheless, the data on numerous aboriginal opulations of Southern Siberia are scanty with respect to both the number of populations and the set of loci studied. Therefore, there is no comprehensive idea as to how the gene pools of individual ethnic groups have been formed, taking into account the contributions of both paternal and maternal lineages [3, 4].Haplogroup distribution:
In general, our results suggest a significant genetic differentiation between the ethnic groups of Baikal and Altai–Sayan regions, which is mainly accounted for by
different contributions of the Central/East Asian and East European components into the gene pools of South Siberian ethnic groups.
Doklady Biological Sciences, 2006, Vol. 411, pp. 466–470
The Diversity of Y-Chromosome Lineages in Indigenous Population of South Siberia
M. V. Derenko et al.