Chromosomal differentiation between populations of Clarias gariepinus (Burchell, 1822) from the Göksu Delta and Orontes River (Turkey)

Authors

ARZU KARAHAN
SERAP ERGENE

DOI

10.3906/biy-0903-4

Abstract

The karyotype of Clarias gariepinus was described by means of G-banding, C-banding, Q-banding, and Ag-NORs (NORs) staining in this study. Samples were collected from 2 regions of Turkey: the Göksu Delta and Orontes River. Although samples from both regions had the same diploid chromosome number and fundamental arm number, (2n = 56, FN = 100), they had remarkable differences in karyotype formula and distribution of rDNA sites, according to silver nitrate staining and G-banding. While the karyotype formula for Orontes River samples was 24m + 10sm + 10st + 12a, the Göksu Delta samples' was 28m + 6sm + 10st + 12a. Comparative analysis showed that there was intraspecific variability in NORs and different NOR numbers in the 2 populations. The study's findings show that the Göksu Delta and Orontes River samples differed from each other.

Keywords

Clarias gariepinus, Cytogenetic analyses, Göksu Delta, Orontes River, Turkey

First Page

79

Last Page

87

Recommended Citation

KARAHAN, ARZU and ERGENE, SERAP (2011) "Chromosomal differentiation between populations of Clarias gariepinus (Burchell, 1822) from the Göksu Delta and Orontes River (Turkey)," Turkish Journal of Biology: Vol. 35: No. 1, Article 9. https://doi.org/10.3906/biy-0903-4
Available at: https://journals.tubitak.gov.tr/biology/vol35/iss1/9