Türkiye Centaurea pseudoscabiosa Boiss. & Buhse (yamankavgalaz) Alt Taksonlarında Karyotip Analizleri

Year 2021, Volume: 8 Issue: 3, 53 - 60, 31.12.2021

Meryem Bozkurt , Kuddisi Ertuğrul , Tuna Uysal

Abstract

Bu çalışmada, Centaurea pseudoscabiosa türüne ait alt taksonların altı popülasyonunun karyotipleri aseto-orcein yöntemi ile incelenmiştir. Tüm popülasyonlar aynı kromozom sayısına (2n=22) ve temel kromozom sayısına (x=11) sahiptir. Alt taksonların karyotipleri C. pseudoscabiosa subsp. pseudoscabiosa ve subsp. araratica 22m, C. pseudoscabiosa var. sipikorensis, 20m+2sm ve C. pseudoscabiosa subsp. glehnii 16m + 6sm olarak tespit edilmiştir. Alt taksonların karyolojik özelliklerini değerlendirmek için beş kantitatif asimetrik indeks kullanılmıştır. Asimetri indekslerine göre, C. pseudoscabiosa subsp. glehnii en asimetrik kromozomlara sahiptir (CVCI:10, AI:1.8). Taksonomik açıdan karyolojik veriler Centaurea pseudoscabiosa’nın önceki tür altı sınıflandırmasını doğrulamaktadır. Ayrıca, karyolojik sonuçlar Türkiye Florası’nda sinonim olarak kabul edilen C. pseudoscabiosa var. sipikorensis alt türünün yeniden canlandırılmasını önermektedir.

Keywords

Asteraceae, Centaurea, endemik, karyomorfoloji, Türkiye

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