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¹ Ahi Evran University, Faculty of Science and Art, Department of Biology, Kırşehir, Turkey
² Gazi University, Faculty of Science, Department of Biology, Ankara, Turkey
³ Ahi Evran University, Faculty of Science and Art, Department of Molecular Biology and Genetics, Kırşehir, Turkey DOI : 10.4194/1303-2712-v18_8_07 Viewed : 3730 - Downloaded : 2377 Diploid chromosome number, chromosome morphologies and chromosomal band properties (with C-banding and AgNOR staining) of endemic Oxynoemacheilus atili Erk`akan, 2012 were revealed out from Beyşehir Lake Basin, Turkey. Metaphase chromosomes were obtained from kidney cells. Diploid chromosome number was found as 2n = 50 and chromosome morphologies were as follows: five pairs of metacentric, nine pairs of submetacentric and 11 pairs of subteloacrocentric chromosomes. Fundamental arm number was calculated as 78. Constitutive heterochromatin regions were determined on the centromeres of chromosomes. NORs were detected on one pair of chromosomes. The obtained results may contribute to nemacheilid chromosomal studies. Keywords : Beyşehir Lake loach, karyotype, constitutive heterochromatin region, nucleolus organizer region