Forty-seven individual mitochondrial DNA (mtDNA) samples isolated from bones samples found in the Nefedyevo, Minino, and Shuygino gravesites have been analyzed to perform molecular genetic study of the medieval (12th to 13th centuries AD) human population from the vicinity of Lake Beloe (Vologda oblast, northern Russia). The mitotypic structure of the population has been determined on the basis of sequencing the mtDNA hypervariable-region segment I (HVSI; positions 15 989–16 410). Three mitotypes characterizing the population studied have been found in the 47 representatives of the medieval population: mitotype 1 corresponding to the Cambridge reference sequence, mitotype 2 (transition G–A at position 16 129), and mitotype 3 (transitions G–A and C–T at loci 16 129 and 16 223, respectively). Mitotypes 1, 2, and 3 have been found in 91.6, 4.2, and 4.2% of the individual samples studied. This high frequency of the Cambridge mitotype is considerably higher than its mean frequencies in European populations. The frequencies of other mitotypes found correspond to their mean European values. The absence of a Mongoloid component has been demonstrated for the female lineage of the population. Comparison of the molecular genetic characteristics of contemporary European ethnic groups and the population studied has demonstrated that it may be assigned to the European population group. The high homogeneity of the mitochondrial pool suggests a strong founder effect, which agrees with the view of archeologists and anthropologists that the first migrant settlers were very few.
Russian Journal of Genetics – Springer Journals
Published: Oct 18, 2004
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