Hamid Reza ESMAEILI, Halimeh ZAREIAN, Ali GHOAMHOSSEINI, Mehregan EBRAHIM, Zeinab GHOLAMI, Azad TEIMORI, Talat Hojat ANSARI

Karyotype analysis of the king nase fish, Chondrostoma regium (Heckel, 1843) (actinopterygii: cyprinidae) from Iran

İran’ın yerli sazangil türü olan Chondrostoma regium (Heckel, 1843)’un karyotipik ve sitolojik özellikleri, solungaç epitelyumundan ve böbrekten elde edilen metafaz kromozom yayılımlarının incelenmesiyle araştırılmıştır. Bu türün diploid kromozom sayısı 2n=52 olarak tespit edilmiştir. Karyotip, 21 submetasentrik ve 5 subtelosentrik kromozom çiftinden oluşmaktadır (12Sm, 5St). Kol sayısı (NF) 58 olarak tespit edilmiştir. Sitolojik olarak hiçbir heteromorfik cinsiyet kromozomu bulunmamıştır. C. regium’un kromozom sayısı, karyotip formülü ve kol sayısı, bu türü birbirine yakın olan diğer türlerden ayırmaktadır. Sonuçlar; popülasyon çalışmaları, yönetim ve koruma programları için kullanılabilir.

Anahtar Kelimeler:

Cyprinidae, böbrekler, karyotip, genetik analizler, kromozomlar, solungaçlar, metafaz, cinsiyet kromozomları, İran

Kababurun balığının, Chondrostoma regium (Heckel, 1843) (actinopterygii: cyprinidae), karyotip analizi, İran

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:

Cyprinidae, kidneys, karyotypes, genetic analysis, chromosomes, gills, metaphase, sex chromosomes, Iran,

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