THE GENE POOL OF NATIVE INHABITANTS OF TH E SAMBURG TUNDRA

This study continues a series of investigations of the gene pool of na tive Siberian ethnic groups. In a population of Tundra Nentsi (Norther n Samoyeds) and a group of Komi-Zyryans (Finno-Ugrian) (Samburg settle ment, Tyumenskaya oblast, Yamalo-Nenetskii Autonomous okrug), gene mar kers of the following genetic systems were studied: blood groups (ABO, MNSs, Rhesus, Kell, Duffy, and P), erythrocyte acid phosphatase (AcP) , phosphoglucomutase 1 (PGM 1), haptoglobin (Hp), and transferrin (Tf) . The population of Samburg Tundra Nentsi was shown to have a close ge netic relationship with the ''core'' of the Forest Nentsi population. In Northern Samoyeds, three carriers of the rare allele K (blood group Kell) were found for the first time. It is suggested that this allele was transferred into the population of Tundra Nentsi from Komi. Sambu rg Tundra Nentsi are found to have the maximum frequency of the allele PGM 1 (Posphoglucomutase 1) among aboriginal populations of northern Asia. Analysis of original data and the literature revealed a signific ant genetic distance between the Komi and Northern Samoyed populations . It was shown that Samburg Komi occupy an intermediate position betwe en the clusters of Nenets populations and Finno-Ugrians (Komi) living in Komi Republic.