Some features of cytogenetic differentiation of striped hamsters, Cricetulus barabensis and Cricetulus pseudogriseus (Rodentia, Cricetidae)

摘要

The karyotypes of C. barabensis (2n = 20, NF = 38) and C. pseudogriseus (2n = 24, NF = 38) from different geographic regions of Russia have been studied. Differences in the karyotype structure (chromosome morphology and distribution of heterochromatin) between the two species are described. Variation in heterochromatin staining of the first two autosomal pairs in C. barabensis from different parts of its range has been revealed for the first time.