Frisman L. V., Kartavtseva I. V., Sheremetyeva I. N., Pavlenko M. V., Korablev V. P.
Bulletin of the North-East scientific center 2016; (3): 93-103
The paper analyzes the original research data and published information on a genetic differentiation of 9 species of the East-Asian voles: Alexandromys oeconomus, A. fortis, A. sachalinensis, A. gromovi, A. middendorffii, A. mongolicus, A. mujanensis, A. maximowiczii, and A. evoronensis. Voles have been intra- and interspecifically differentiated by their allozyme and karyotype characteristics, which resulted in identifying two groups of species with the minimal (= population) level of interspecific allozyme differentiation. One of these groups is represented by chromosomally polymorphic species: A. maximowiczii, A. evoronensis, A. mujanensis. According to the allozyme data, the two species with stable karyotypes – A. middendorffii and A. gromovi – form another group of closely related species. The allozyme differentiation of the other taxa has been found to increase in the population-subspecies-species row. The results are analysed in terms of geographic (allopatric) and chromosomal (stasipatric) speciation models