ABSTRACT
Analysis of the inbreeding coefficient, its structure and dynamics in rural and urbanized populations of the Kostroma province was performed. The coefficient of inbreeding was estimated for the "old" and "new" villages via migration and isonymy, the values being 0.001185; 0.000786 and 0.001341; 0.000682, respectively. It follows from these data that there is a good agreement between the values of the inbreeding coefficient estimated by two different methods and that this coefficient is diminished doubly in "new" villages. The coefficient of inbreeding in small towns was estimated via isonymy. It is 0.000704 in ancient and 0,000229 in modern towns. The decrease in the inbreeding coefficient was more pronounced in towns, as compared to villages.
Subject(s)
Consanguinity , Names , Humans , Models, Genetic , Rural Population , Russia , Urban PopulationABSTRACT
The possible usefulness of Russian surnames as a quasi-genetic marker in the population study is analysed. Two approaches for the populations of different hierarchical levels are used. The coefficients of correlations between the matrices of genetical (based on gene frequencies in the populations) and quasi-genetical (based on surnames frequencies in the populations) distances were determined. The mean correlation coefficient is 0.315 +/- 0.15. Genetical and quasi-genetical distances and the level of gamete exchange between populations are connected, being reversely dependent. The mean correlation coefficients are: -0.63 +/- 0.13 and -0.23 +/- 0.16. The correlation coefficient for matrices of quasi-genetical and geographical distances was 0.39 +/- 0.08, this being -0.42 +/- 0.08 for matrices of quasi-genetical distance and geometrical mean of population dimensions. It is shown that surnames can replace genetic markers in description of the population genetic structure and in the study of the processes influencing this structure.