Chromosomal evolution of the genus Nannospalax (Palmer 1903) (Rodentia, Muridae) from western Turkey

Abstract

We used 33 blind mole rats belonging to 10 different chromosomal races from 10 localities in western Turkey. We applied G-and C-banding techniques to compare chromosomal races as well as clarifying relationships between them. We discussed cytogenetic similarities and differences between chromosomal races. We concluded that 2n = 60C is the ancestor of the other chromosomal races. However, as a result of ongoing evolution processes 2n = 38 and 2n = 60K have become ancestors to chromosomal races on their peripherals. We discovered which rearrangements contribute to the evolution of such a complex chromosomal race system in a genus. With this study we provide a comprehensive comparison of the 10 chromosomal races and perform a cladistic analysis using chromosomal rearrangement character states. According to our tree, chromosomal races with a low diploid number formed a monophyletic group. © TÜBİTAK.