Astragalus L. Cinsinin Bazı Taksonlarındaki Genetik Çeşitliliğin RAPD Tekniği ile Araştırılması: Koruma ve Taksonomiye Yönelik Çıkarımlar

Öz

Astragalus L., Avrasya ve Amerika'da bulunan, yaklaşık 3092 türden oluşan, dünya çapında en büyük damarlı bitki cinsi olarak kabul edilmektedir. Türkiye 63 farklı taksonomik seksiyona ayrılmış 493 türe ev sahipliği yapmaktadır. Bu çalışma, Astragalus cinsine ait seksiyonlar üzerinde yürütülen sınırlı sayıdaki moleküler çeşitlilik çalışmalarına odaklanmaktadır. Çalışmada öncelikli olarak Türkiye'de doğal yayılış gösteren 10 (on) Astragalus taksonu üzerinde çalışıldı. Genetik polimorfizmlerin varlığını değerlendirmek için Rastgele Çoğaltılmış Polimorfik DNA (RAPD) tekniği kullanıldı. Elde edilen filogenetik ilişki sonuçlarına göre Anthylloidei DC (A. anthylloides, A. halicacabus ve A. ermineus), Macrophyllium Bunge (A. oleifolius ve A. dipodurus), Hymenostegis Bunge (A. lagopoides, A. velenowskyi ve A. hirticalyx) yakından ilişkili bulunurken, Poterion Bunge (A. russelli) ve Hymenocoleus Bunge (A. vaginans) seksiyonlarının farklı konumlar olduğu tespit edilmiştir. Çalışmamız, Astragalus taksonlarının moleküler karekterizasyonuna katkıda bulunmayı, moleküler biyoçeşitlilik envanterlerini oluşturmayı ve filogenetik ilişkileri belirlemeyi amaçlamaktadır. Genetik çeşitlilik ve filogenetik pozisyonlarına ilişkin bu bulgular, gelecekteki araştırmalar için önemli çıkarımlara sahiptir ve geleneksel tıp, tarım ve peyzaj dahil olmak üzere birçok alanda ekonomik önemi olan Astragalus türlerini vurgulamaktadır.

Anahtar Kelimeler

• Astragalus L
• Genetik çeşitlilik
• RAPD
• Türkiye

A RAPD-Based Exploration of Genetic Variation in the Some taxa of Astragalus L. Genus: Implications for Conservation and Taxonomy

Abstract

Astragalus L. is regarded as the most extensive genus of vascular plants globally, encompassing around 3092 species and distributed across Eurasia and the America. Türkiye hosts 493 species categorized into 63 distinct taxonomic groups. This study examines the restricted molecular diversity studies pertaining to the sections of the genus Astragalus. The study primarily investigated ten (10) Astragalus taxa indigenous to Türkiye. The Randomly Amplified Polymorphic DNA (RAPD) method was utilized to evaluate the existence of genetic polymorphisms. The phylogenetic analysis revealed that the sections Anthylloidei DC (A. anthylloides, A. halicacabus, and A. ermineus), Macrophyllium Bunge (A. oleifolius and A. dipodurus), and Hymenostegis Bunge (A. lagopoides, A. velenowskyi, and A. hirticalyx) are closely related, whereas the sections Poterion Bunge (A. russelli) and Hymenocoleus Bunge (A. vaginans) are situated in distinct locations. This project seeks to enhance the molecular characterization of Astragalus taxa, create molecular biodiversity inventories, and elucidate phylogenetic relationships. The results concerning genetic diversity and evolutionary relationships bear substantial implications for future research and underscore Astragalus species that possess economic significance in diverse domains, such as traditional medicine, agriculture, and landscaping.

Keywords

• Astragalus L.
• Genetic variation
• RAPD
• Türkiye

Kaynakça

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