Sheremetyeva I.N., Kartavtseva I.V., Lapin A.S., Moroldoev I.V.
В издании Modern achievements in population, evolutionary and ecological genetics (MAPEEG-2022): Program and Abstract of International Symposium
Год: 2022 Страницы: 65
The East European vole (Microtus rossiaemeridionalis) is one of the gray vole species of the "arvalis" group. The native range of this species covers vast territory from southern Finland and Baltic region eastward to the western Siberia and southward to the southern Caucasus and northern Iran, Turkey and Greece. The East European vole is characterized by a rapid expansion of its range and its occurrence outside the known native range. In the last years, this vole migrated with transport into certain areas of western and eastern Siberia and the Russian Far East. The aim of this work was to evaluate the genetic diversity in three invasive populations of the East European vole recently discovered in the Russian Far East. The obtained results demonstrated lower genetic diversity in the population of the East European vole from the city of Sovetskaya Gavan (Sheremetyeva et al., 2021) compared to the populations from the cities of Khabarovsk and Ulan-Ude. At the same time, the H1 haplotype was common in individuals of all three populations, and the H3 haplotype in the population of the cities of Khabarovsk and Sovetskaya Gavan. The remaining haplotypes had a small number of substitutions in the H1 haplotype, with the exception of two highly differentiated haplotypes, one from the population of the city of Khabarovsk (H21) and the other from the city of Ulan-Ude (H20). It can be assumed that the donor of the invasive voles in the three cities was one population, which is within the range of the European lineage (EU subclade). Low genetic diversity in the Sovetskaya Gavan population may be the result of the founder effect and stochastic processes occurring in small isolated populations (genetic drift). The presence of highly differentiated haplotypes in the populations of Khabarovsk and Ulan-Ude may indicate, on the one hand, that the invasion of the East European vole occurred repeatedly from different regions of the native range. On the other hand, it is possible that there are also highly differentiated haplotypes in the donor population.
