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| Hu,Yanping; Xie,Xiaolong; Wang,Li; Zhang,Huaigang; Yang,Jian; Li,Yi. |
| To examine whether cultivation reduced genetic variation in the important Chinese medicinal plant Rheum tanguticum, the levels and distribution of genetic variation were investigated using ISSR markers. Fifty-eight R. tanguticum individuals from five cultivated populations were studied. Thirteen primers were used and a total of 320 DNA bands were scored. High levels of genetic diversity were detected in cultivated R. tanguticum (PPB = 82.19, H = 0.2498, H B = 0.3231, I = 0.3812) and could be explained by the outcrossing system, as well as long-lived and human-mediated seed exchanges. Analysis of molecular variance (AMOVA) showed that more genetic variation was found within populations (76.1%) than among them (23.9%). This was supported by the coefficient... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cultivated populations; Genetic variation; ISSR; Polygonaceae; Rheum tanguticum Maxim. ex Balf. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000400010 |
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