Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8416571 | Journal of Genetic Engineering and Biotechnology | 2016 | 14 Pages |
Abstract
Altitudinal gradient-defined specific environmental conditions could lead to genetics and chemical variations among individuals of the same species. By using RAPD, ISSR, GC-MS and HPLC analysis, the genetic and chemical diversity of Ziziphus spina-christi plants at various altitudinal gradient namely; Abha (2227.86Â m), Dala Valley (1424Â m), Rakhma Valley (1000Â m), Raheb Valley (505Â m) and Al-Marbh (147Â m) were estimated. RAPD markers revealed that the highest similarity value (40.22%) was between Raheb Valley and Al-Marbh while the lowest similarity (10.08%) was between Abha and Raheb Valley. Based on ISSR markers the highest similarity value (61.54%) was also between Raheb Valley and Al-Marbh, while the lowest similarity (26.84%) was between Abha and Rakhma Valley. GC-MS results showed the presence of various phytochemical constituents in each population. The dendrogram based on chemical compounds separated the Z. spina-christi grown at the highest elevations (Abha) from the populations in lower elevations. HPLC analysis showed that the leaves of Z. spina-christi plant contain considerable amount of vitamins including B1, B12, B2 and folic acid. In conclusion, there is a close relation between altitudinal gradients, genetic diversity and chemical constituents of the leaves of Z. spina-christi plants.
Keywords
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Authors
Mahmoud F. Moustafa, Abd El-Latif Hesham, Manal S. Quraishi, Sulaiman A. Alrumman,