C-Heterochromatin and nucleolus organizer region distribution of Myotis emarginatus (Chiroptera: Vespertilionidae) from Turkey

Abstract

In this study, the banded karyotypes (C- and Ag-nucleolus organizer regions (NORs)) of Myotis emarginatus in Turkey weredetermined for the first time. The karyotype contained 44 chromosomes, the number of chromosomal arms (NF) was 54, and thenumber of autosomal arms (NFa) was 50. Slight C-heterochromatic blocks were observed in the centromeric regions of some autosomepairs, whereas the sex chromosomes were euchromatic. The Ag-NORs were detected in the short arms of a large and a medium-sizedacrocentric autosome. The distribution of C-heterochromatin regions in Turkish populations of M. emarginatus is similar to thosereported in some other Myotis species.