Genetic history of Bashkirian Mari and Southern Mansi ethnic groups in the Ural region.

Abstract

According to genetic studies, the Hungarian Y-chromosomal gene pool significantly differs from other Uralic-speaking populations. Hungarians possess a significant frequency of haplogroup R1a-Z280 and a low frequency of haplogroup N-Tat, which is common among other Uralic-speaking populations. Based on this evidence, we further worked to define the links between the linguistically related Hungarian, Mansi and Bashkirian Mari populations. Samples were collected from 45 Bashkirian Mari and 36 Southern Mansi males in the Ural region. We analyzed male-specific markers including 23 STRs and 36 SNPs, which reflect past and recent paternal genetic history. We found that the haplogroup distribution of the two population samples showed high genetic similarity to each other except for the N-Tat* and R1a-Z93 haplogroups in the Bashkirian Mari males. On the MDS plots constructed from Fst- and Rst-genetic distances, the Bashkirian Mari and Southern Mansi population groups showed close genetic affinities with the Khanty, Northern Mansi, Mari, and Estonian populations. For phylogenetic studies, networks were constructed for the most frequent haplogroups in both populations together with other Eurasian populations. Both populations shared common haplotypes within haplogroups R1a-Z280 or N-L1034 with Hungarian speakers, suggesting a common paternal genetic footprint that arose in prehistoric or historic times. Overall, the Hungarian, Mansi, and Bashkirian Mari populations have a much more complex genetic history than the traditional linguistic model or history would suggest. Further studies are needed to clarify the common genetic profiles may have been acquired directly or indirectly during the more or less known their history.