Genetic variation of the fragment of the cytochrome oxidase mtDNA of the Siberian chipmunk (Tamias sibiricus)

Abstract

Siberian chipmunk is distributed from the Urals in the east to Chukotka in the west. Siberian chipmunk is one of the most typical inhabitants of the forests of the Magadan Region. Based on the materials collected in June 2016, the genetic variability of cytochrome oxidase mtDNA of the Siberian chipmunk, inhabiting near the city of Magadan, was first studied. The genetic variability of the Siberian chipmunk, inhabiting near the city of Magadan, was first investigated. The nucleotide diversity of six Siberian chipmunks was π = 0.00451 ± 0.0004337, the haplotypic variety Hd = 0.933 ± 0.0498. Five haplotypes were found. By the magnitude of genetic differentiation, all individuals are divided into two groups, one consists of two individuals, the other of four. We can assume that the individuals we studied are descendants of two female founders - we caught the members of two families, founded by two females. Available in the base of IBOL 18 nucleotide sequences in individuals caught in other parts of the range, the parameters of genetic diversity have similar values (π = 0.00326 ± 0.000167 and Hd = 0.843 ± 0.2357). Chipmunks caught in the north-eastern part of China, according to the magnitude of genetic differentiation, represent one cluster, which includes an individual from the Altai Territory. Magadan chipmunks form a separate grouping. The most likely cause of such significant genetic differences is the geographical isolation of Magadan chipmunks from animals from other parts of the range