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Riahi M, DastBarjan S, Jahani Seghaleh N. Phylogeny of some species of Astragalus (Fabaceae) based on morphological data. nbr 2020; 6 (4) :505-512
URL: http://nbr.khu.ac.ir/article-1-3283-en.html
Phylogeny of some species of Astragalus (Fabaceae) based on morphological data
Mehrshid Riahi * , Sima DastBarjan , Negin Jahani Seghaleh
Department of Plant Sciences, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran , mehrshidriahi@khu.ac.ir
Abstract:   (4347 Views)
The phylogenetic relationships among 39 species belonging to 12 sections of Astragalus from Iran were studied on the basis of 29 morphological characters. The cladistics analysis of the morphological data was performed using PAUP* 4.0b10 program. The obtained data were compared with the molecular systematics data obtained from nuclear DNA ITS. In contrast with previous molecular systematic studies, the morphological data placed the sect. Caraganella as paraphyletic clade to the sects. Cenantrum, Nuculiella, and Eremophysa. Our results were similar to those obtained by previous molecular systematic studies which specified sects. Astragalus, Alopecuroidei and Laxiflori as paraphyletic clades. In accordance with data presented in previous molecular systematic studies, the species of the sect. Caprini showed close relationship with those in sects. Pelta and Pendulina. The present analysis, consistent with molecular systematic studies, rejected the monophyly of most sections studied. Therefore, although the circumscription of those sections needs to be carried out on the basis of the results of widely accepted molecular and morphological phylogenetic studies, future studies are needed to clarify and resolve some remaining ambiguities.
 
 
Keywords: monophyly, morphological characters, phylogenetic analysis, polyphyly, section
Full-Text [PDF 864 kb]   (1287 Downloads)    
Type of Study: Original Article | Subject: Plant Biology
Received: 2019/07/7 | Revised: 2020/02/24 | Accepted: 2019/12/8 | Published: 2020/01/8 | ePublished: 2020/01/8
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