TAILIEUCHUNG - Morphological cladistic analysis of some bifurcate hairy sections of Astragalus (Fabaceae) in Iran
The present results revealed that sections Onobrychoidei DC. and Ornithopodium Bunge are interrelated taxa and form a single monophyletic group. The current status of section Dissitiflori DC. is a nonmonophyletic group. Its members form several subclades and unresolved branches across the tree. Sections Erioceras Bunge and Cytisodes Bunge as well as Corethrum Bunge are sister taxa and form weakly to highly supported monophyletic groups, respectively. | Research Article Turk J Bot 36 (2012) 434-442 © TÜBİTAK doi: Morphological cladistic analysis of some bifurcate hairy sections of Astragalus (Fabaceae) in Iran Reza SHEIKH AKBARI MEHR1,*, Ali Asghar MAASSOUMI2, Abbas SAIDI3, Shahrokh KAZEMPOUR OSALOO4, Majid GHORBANI NOHOOJI1 1 Department of Botany, Faculty of Biological Sciences, Shahid Beheshti University G. C., Tehran - IRAN 2 Department of Botany, Research Institute of Forests and Rangelands, Tehran - IRAN 3 Department of Agricultural Biotechnology, Faculty of Energy Engineering and New Technologies, Shahid Beheshti University G. C., Tehran - IRAN 4 Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modaress University, Tehran - IRAN Received: ● Accepted: Abstract: The phylogenetic relationships among some bifurcate hairy sections of Astragalus L. were reconstructed using 38 vegetative and reproductive morphological characters. A data matrix comprising 36 ingroups and 2 outgroups was analysed using the maximum parsimony method. The present results revealed that sections Onobrychoidei DC. and Ornithopodium Bunge are interrelated taxa and form a single monophyletic group. The current status of section Dissitiflori DC. is a nonmonophyletic group. Its members form several subclades and unresolved branches across the tree. Sections Erioceras Bunge and Cytisodes Bunge as well as Corethrum Bunge are sister taxa and form weakly to highly supported monophyletic groups, respectively. Astragalus pravitzii Podlech, which was recently transferred to section Ornithopodium from section Dissitiflori, has no affinity with that section. Key words: Astragalus, cladistic, Dissitiflori, Erioceras, Ornithopodium, Onobrychoidei, phylogeny Introduction Astragalus L. (Fabaceae) is probably the largest genus of flowering plants on earth and contains an estimated 2500 annual and perennial species and about 250 sections worldwide (Lock & Simpson, 1991; Podlech, 1998).
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