Volume 7, Issue 2 (7-2020)                   NBR 2020, 7(2): 228-241 | Back to browse issues page


XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Khalili Z, Kazempour-Osaloo S, Maassoumi A A. Phylogeny and morphological traits evolution of Astragalus sects. Acanthophace and Aegacantha in Iran on the basis of nrDNA ITS and rpl32-trnLUAG sequences . NBR 2020; 7 (2) :228-241
URL: http://nbr.khu.ac.ir/article-1-3306-en.html
Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran; Center of Excellence in Phylogeny of Living Organisms, University of Tehran, Tehran, Iran , skosaloo@modares.ac.ir
Abstract:   (2499 Views)
In this study, phylogenetic relationships and evolutionary trends of morphological characters of Astragalus sects. Acanthophace and Aegacantha were studied using nrDNA ITS and rpl32-trnLUAG datasets while Astragalus stocksii was selected as the outgroup. The phylogenetic results indicated the non-monophyly of A. sect. Acanthophace in its current circumscription due to the distant exclusion of A. ovigerus from the core group, and incongruence between nuclear and plastid datasets on the basis of different position of latter species in the resulted phylogenetic trees. Astragalus sect. Aegacantha was also found to not being monophyletic due to the distant position of A. montis-parrowii from the other representatives of the section while accompanying with other spiny Astragalus species. The Optimization of 32 morphological characters on the Bayesian combined tree indicated that some characters were most useful for delimitation of taxa in sections Acanthophace and Aegacantha. The results obtained from the evolution of characters showed that standard blade constriction, legume shape and possessing unilocular pods were of diagnostic importance for the separation of A. ovigerus from other species. The traced characters were in accordance with the phylogenetic position of A. montis-parrowii, which was separated from other members of sect. Aegacantha, as the number of flowers in inflorescences, the presence of peduncle, hairy petal, pandurate standard and constriction of standard that is differentiatiated to claw, the presence of claw in standard and the length difference between keel and wing were different from those in other members of the sect. Aegacantha.
 
Full-Text [PDF 763 kb]   (991 Downloads)    
Type of Study: Original Article | Subject: Plant Biology
Received: 2019/09/7 | Revised: 2020/07/1 | Accepted: 2019/11/29 | Published: 2020/06/30 | ePublished: 2020/06/30

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Creative Commons Licence
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.



© 2024 CC BY-NC 4.0 | Nova Biologica Reperta

Designed & Developed by : Yektaweb