کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1352827 980592 2006 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High genetic differentiation revealed by RAPD analysis of narrowly endemic Sinocalycanthus chinensis Cheng et S.Y. Chang, an endangered species of China
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
High genetic differentiation revealed by RAPD analysis of narrowly endemic Sinocalycanthus chinensis Cheng et S.Y. Chang, an endangered species of China
چکیده انگلیسی

Genetic diversity and genetic differentiation of narrowly endemic Sinocalycanthus chinensis Cheng et S.Y. Chang, an endangered species of China, were analyzed using random amplified polymorphic DNA (RAPD) markers. Totally, 165 stable and clearly scored RAPD bands were achieved from 12 primers. The genetic diversity of S. chinensis was high (P% = 68.84; h = 0.2421 ± 0.1978; I = 0.3615 ± 0.2789), whereas that at the population level was relatively low (P% = 14.49; h = 0.0578 ± 0.0167; I = 0.0843 ± 0.0236). High genetic differentiation among populations was detected based on Shannon's information index (0.7668), Nei's gene diversity (0.7613) and AMOVA (0.8183). This might be explained by its survival in refugia during the last glaciation in southeastern China with origin from a widespread continental progenitor. The 10 populations from different geographical sites could be clustered into two groups. Low gene flow due to mixed mating system and anthropogenic activities likely played important roles in shaping the population genetic structure of the species.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical Systematics and Ecology - Volume 34, Issue 10, October 2006, Pages 725–735
نویسندگان
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