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Phylogenetic relationships of Medicago species in Iran
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Farangis Ghanavati   |
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Abstract: (3806 Views) |
| Phylogenetic analysis of 23 species of Medicago (Fabaceae) was performed based on 90 morphological characteristics by maximum parsimony approach as implemented in PAUP software-using heuristic search and branch swapping option of tree bisection-reconnection. Analysis of the characters with successive weighting using rescaled consistency index generated more reasonable phylogentic trees than the analysis with equally weighting characters. M. radiata was as outgroup. The analyses showed that there are five clades in Medicago that to some extent are in accordance with sections in Medicago genus. Perennial species, M. sativa and M. lupulina, with 91% confident intervals grouped together in the clade and among annual medics. This implies that annual medics are paraphyletic and in evolutionary process cross-pollinated species (M. sativa) have been evolved from self-pollinated species (annual medics). The most phylogenetical relationships was observed between M. rugosa and M. scutellata, M. sativa and M. lupulina, M. coronata and M. minima, M. rigidula and M. rigiduloides, M. polymorpha and M. arabica, M. tornata and M. turbinata. This information can be used in determining the dgree of success of inter-specific hybridization between different species in Medicago genus. |
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| Keywords: Inter-specific hybridazatio, Medicago, Morphology and Phylogeny |
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Full-Text [PDF 165 kb]
(2290 Downloads)
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Type of Study: Scientific & Research |
Subject:
Special
Received: 2015/02/17 | Accepted: 2015/02/17 | Published: 2015/02/17
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