doi:10.3906/zoo-0907-95 G- and C-banded karyotypes of Hazel Dormouse, Muscardinus avellanarius trapezius

Abstract: Th e 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 cy-togenetically 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. Key words: Muscardinus avellanarius trapezius, cytogenetic, Turkey Türkiye’deki Muscardinus avellanarius trapezius (Mammalia: Rodentia)’un G- ve C-bandlı karyotipleri Özet: Bu çalışmada Türkiye’deki Muscardinus avellanarius trapezius ile ilgili karyolojik bir çalışmanın sonuçları gös-terildi. On örnek, klasik boyama, G- ve C-bantlama teknikleri kullanılarak sitogenetik olarak incelendi. Bu alttürün Türkiye’den G- ve C-bantlı örnekleri ilk kez bu çalışmada ortaya çıkarıldı. Karyotip değerleri 2n = 46, NF = 90 ve NFa = 86 olarak belirlendi. Metasentrik bir kromozom çift inde ikinci bir boğum görüldü (no. 9). Tüm kromozomla