Morphometric and genetic variability of the alien land snail Xeropicta derbentina (Gastropoda, Pulmonata, Hygromiidae) populations

Valeria V. Adamova, Eduard A. Snegin, P. A. Ukrainskiy


The recent record of Xeropicta derbentina in the south of the Central Russian Upland (Belgorod Region, Russia) provides the opportunity to study the alien populations structure at the stage of colonization of a new territory. High intra-and interpopulation variability of the X. derbentina shell in different parts of the range is revealed. Based on the allozyme and PCR-ISSR analysis, it was established that native and adventitious populations of X. derbentina had the same level of genetic variability. The potential number of multilocus genotypes calculated for the Belgorod population indicate a further complexity of their genetic structure. The result of the ISSR analysis showed significant genetic differentiation (FST=0.746; p=0.01) of two adventive populations from the Belgorod Region, which indicates their different origin from the natural area.


alien species; population structure; land snail


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