G- and C-banded karyotypes of Hazel Dormouse, Muscardinus avellanarius trapezius(Mammalia: Rodentia) in Turkey

Abstract

The results of a karyological study on the hazel dormouse Muscardinus avellanarius trapezius from Turkey were presented in this study. Using conventional staining and G- and C-banding techniques, 10 specimens were cytogenetically studied. Th e G- and C-banding patterns of Turkish specimens of this subspecies were provided for the fi rst time in this study. Th e karyotype was composed of 2n = 46, NF = 90 and NFa = 86. A secondary constriction was visible in one pair of metacentrics (no. 9). All of the chromosomes possessed heterochromatic bands in the centromeric and pericentromeric regions. Th e X chromosome was a medium-sized metacentric and the heterochromatic region was restricted to the centromere. Th e Y chromosome was a very small acrocentric and possessed small centromeric block of heterochromatic. © TÜB?TAK.