The chromosome banding pattern (C-banding, AgNOR staining) was studied in isolated populations of two species of rodents from Turkey, Glis glis and Myodes glareolus. A single nucleolar organizer region was localized in an autosomal pair in the complement of G. glis. Centromeric C-heterochromatin blocks and seven pairs of NOR-bearing autosomes were observed in the complement of M. glareolus. A metacentric Y chromosome was found in the M. glareolus males examined. The detailed structure of karyotypes and the banding patterns differ from some previously published results.
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