Abstract
Using the capillary electrophoresis of ISSR DNA fragments, the genetic structure of the adventitious populations of Helix pomatia L. (Mollusca, Pulmonata) inhabiting the territory of Eastern Europe was studied. A significant decrease in genetic heterogeneity (He = 0.095 ± 0.002) and population differentiation level (Fst = 0.074) was revealed in comparison with similar data obtained using the ISSR method with electrophoretic detection in agarose gel and allozymes in polyacrylamide gel. Similar to other methods, an effect of spatial isolation (RM =–0.476) was found on the basis of regression analysis between genetic and geographical distances. The effective population size, calculated with the help of M. Slatkin’s model, turned out to be the largest of the previously calculated values (Ne = 41.8), which indicates the high viability of the studied groups of Roman snails in newly developed territories.
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