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Population genetic structure of the land snails of the genus Brephulopsis (B. cylindrica and B. bidens) and their hybrids has been studied using of three polymorphic loci of esterases of foot tissues. Genetic patterns of allozyme variability of hybrid forms were similar to those for B. bidens. A similar result is obtained when using multilocus genotypes allozymes. On the other hand, the hybrid forms are characterized by an intermediate (“chimerical”) shell morphology between the two parental species. The values of effective population size were estimated by the Slatkin method of “private” alleles and the Kohn’s rarefaction curve method. These values were in the range from 20 to 60 individuals. 

Особенности аллозимной изменчивости наземных моллюсков рода Brephulopsis (Enidae) в области интрогрессивной гибридизации
Крамаренко С. С.;