Karyotype analysis of Astragalus stenosemioides (Fabaceae)

Öz

In this research the metaphase chromosome number and karyotype of Astragalus stenosemioides species growing naturally in Turkey are studied. The study revealed that the chromosome number of A. stenosemioides is 2n = 16. The basic chromosome number of species is determined as x = 8. The karyotype formula of A. stenosemioides is 8m. The total length of the somatic chromosomes of A. stenosemioides ranges between 1.96 - 3.38 μm. The total haploid chromosome length of A. stenosemioides is determined as 21.36 μm. In addition, the karyotype asymmetry of the species was evaluated by different methods; Stebbins classification, TF%, AsK%, Syi and Rec, A1, A2, DI, A, and AI.

Anahtar Kelimeler

• Astragalus
• Fabaceae
• Karyotype
• Turkey

Astragalus stenosemioides (Fabaceae)’in karyotip analizi

Öz

Bu çalışmada Türkiye'de doğal olarak yetişen Astragalus stenosemioides türünün metafaz kromozom sayısı ve karyotipi incelenmiştir. Çalışmada A. stenosemioides'in kromozom sayısının 2n = 16 olduğu tespit edilmiştir. Türün temel kromozom sayısı x = 8 olarak belirlenmiştir. A. stenosemioides'in karyotip formülü 8m'dir. Astragalus stenosemioides'in somatik kromozomlarının toplam uzunluğu 1.96 - 3.38 µm arasında değişmektedir. A. stenosemioides'in toplam haploid kromozom uzunluğu 21.36 µm olarak belirlenmiştir Ayrıca türün karyotip asimetrisi; Stebbins sınıflandırması, %TF, %AsK, Syi ve Rec, A1, A2, DI, A ve AI gibi farklı yöntemlerle değerlendirilmiştir.

Anahtar Kelimeler

• Astragalus
• Fabaceae
• Karyotip
• Türkiye

Kaynakça

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