Zoology in the Middle East, cilt.36, sa.1, ss.5-10, 2005 (Scopus)
The karyotypes of 35 specimens of the subterranean mole rat of the superspecies Spalax leucodon Nordman, 1840, from 11 localities in the Bilecik area in north-western Turkey were analysed. Two different karyotypes were identified and both show a distinct geographic distribution: The karyotype 2n=52 and NF=70 is confined to the eastern side of the Sakarya River, whereas 2n=60 and NF=78 is found only on the western side of the river. The Sakarya River thus serves as a barrier and separates both forms in this area. © 2005 Taylor & Francis Group, LLC.