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Turkish Journal of Fisheries and Aquatic Sciences 2010, Vol 10, Num, 4     (Pages: 477-481)

Karyotype Analysis of the King Nase Fish, Chondrostoma regium (Heckel, 1843) (Actinopterygii: Cyprinidae) from Iran

Hamid Reza Esmaeili 1 ,Halimeh Zareian 1 ,Ali Gholamhosseini 1 ,Mehregan Ebrahimi 1 ,Zeinab Gholami 1 ,Azad Teimori 1 ,Talat Hojat Ansari 1

1 Shiraz University, College of Sciences, Department of Biology, Shiraz, 71454, Iran DOI : 10.4194/trjfas.2010.0406 Viewed : 4096 - Downloaded : 2974 The karyotypic and cytological characteristics of a native cyprinid fish of Iran Chondrostoma regium (Heckel, 1843) have been investigated by examining metaphase chromosomes spreads obtained from gill epithelial and kidney. The diploid chromosome number of this species was 2n=52. The karyotype consisted of 21 pairs of submetacentric and 5 pairs of subtelocentric chromosomes (12Sm, 5St). The arm number (NF) was 58. No heteromorphic sex chromosomes were cytologically detected. Chromosome number, karyotype formula and arm number of C. regium differentiate it from other closely related species. The results may be used for population studies, management and conservation programs. Keywords : Chondrostoma regium, karyotype, chromosome, idiogram, Middle East