Frisman L.V., Bogdanov A.S., Kartavtseva I.V., Sheremetyeva I.N., Pavlenko M.V., Shlufman K.V., Kovalskaya Yu.M.
Journal of general biology 2019; 80(4): 274-285
Based on microsatellite analysis, intraspecific polymorphism has been examined in two extensive continental isolates of the striped field mouse (Apodemus agrarius Pallas, 1771) which were separated by the Baikal disjunction. Striped field mice from the western isolate (both from the European and Kazakh-Siberian parts of the range) and from the eastern isolate (both from the territory of the Middle Amur Region and Primorye) were tested. We collected 180 samples from 33 localities and used five microsatellite loci developed earlier by K. Makova with co-authors for the genus Apodemus. The work is carried out on the basis of the summation of local samples in each of the above-mentioned geographical regions. It is shown that allelic diversity and the number of specific alleles are higher in the eastern isolate, that may be the result of longer habitation of the striped field mouse in the eastern part of the range. The limited number of specific alleles in the western isolate as compared to the eastern one might be determined by the founder effect and reflect the direction of the historical migration of the species from east to west. Our results demonstrate no more than a population level of differentiation within the continental isolates of the striped field mouse and indicate no more than a subspecies level of differences between these isolated forms, i.e., the relatively recent penetration of A. agrarius to the west of Eurasia.
