[Genetic demographic approach in anthropological research. IV. The information value of genealogical tables and the level of inbreeding in Khakass populations].

The average volume of genealogical information in two Khakass ethnographic groups--Kizil and Sagai populations was 0.451 and 0.331 taking into account 7 and 10 generations under study correspondingly. The inbreeding coefficients calculated with the help of genealogical method are 0.0012 and 0.0025 and using the group of potentially or conditionally consanguineous marriages--0.0051 and 0.0108. The common inbreeding coefficient (FIT) and relative impact into it of the random (FST) and nonrandom (FIS) components received by means of the isonymy method in Kizil ethnographic group were 0.0121, 0.026 and -0.0143, while in the Sagai group the figures were 0.020, 0.042 and -0.023. The collection and analysis of the genealogical information presented non-graphically gives wide opportunities in description of the population structures as well in a number of allied branches of science where the genealogical (graphic) method is used.