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Systematic Studies on Populations of Medicago orbicularis (L.) Bartal: Molecular, Morphological and Ecological Characterizations | ||
| Journal of Genetic Resources | ||
| دوره 8، شماره 2، آذر 2022، صفحه 178-187 اصل مقاله (539.19 K) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22080/jgr.2022.23209.1301 | ||
| نویسندگان | ||
| Zahra Morshedi1؛ Mostafa Assadi2؛ Ernest Small3؛ Mohammad Mehdi Dehshiri4؛ Iraj Mehregan* 1 | ||
| 1Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran | ||
| 2Department of Botany, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran | ||
| 3Science and Technology Branch, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada | ||
| 4Department of Biology, Borujerd Branch, Islamic Azad University, Borujerd, Iran | ||
| تاریخ دریافت: 14 دی 1400، تاریخ بازنگری: 31 فروردین 1401، تاریخ پذیرش: 18 خرداد 1401 | ||
| چکیده | ||
| In this paper, pod morphological traits of eleven populations of Medicago orbicularis (L.) Bartal., collected from the West, Northwest, and Southwest of Iran, have been assessed. In addition, nuclear ribosomal Internal Transcribed Spacer (nrITS, ITS1+5.8s+ITS2) variation in four populations of M. orbicularis was analyzed. Molecular phylogenetic analysis showed that all accessions of M. orbicularis formed a well-supported monophyletic clade while no geographical patterning was observed. The result of Principle Components Analysis (PCA) and cluster analysis (Ward’s method) (despite a negative Mantel test), suggested a relationship between the morphology and geographical distribution of the populations. Moreover, three distinctive geographical groups were determined using PCA and cluster analysis. Correlation analyses between ecological variables and morphological traits were often negative. However, altitude, average temperature, and average monthly soil temperature showed positive correlations. Wind's relative effect on all morphological traits has also been observed. Two morphological traits- Seeds Total Number (STN) per pod and Fruit Diameter (FDM)-indicated a significant variation. A direct relationship was observed between the two mentioned characters in all populations. Paveh (PVH) and Marivan (MRV) with the highest STN and FDM demonstrated useful potential for breeding and conservation programs in the future. Overall, it could be assumed that the high STN in M. orbicularis (comparison with other species of Medicago studied in Iran, such as M. minima, M. sinskiae, and M. polymorpha), as well as the effect of winds on seeds distribution, are two main influential factors in creating geographical pattern and morphological diversity. | ||
| کلیدواژه‌ها | ||
| Cladistics؛ Ecological effects؛ ITS؛ Phenetic؛ Phylogeny | ||
| مراجع | ||
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