Genetic diversity in Eucommia ulmoides (Eucommiaceae), an endangered traditional Chinese medicinal plant
文献类型：期刊论文
| 作者 | Deng, Jianyun; Huang, Hongwen; Yao, Xiaohong |
| 刊名 | CONSERVATION GENETICS
 |
| 出版日期 | 2012 |
| 英文摘要 | Eucommia ulmoides, the only species of Eucommiaceae, has been used as Chinese medicinal plant for more than 2,000 years, and is endangered as a consequence of long-term overexploitation. In this study, genetic diversity within and among the semi-wild and cultivated populations of E. ulmoides collected from its main production area was investigated using two cpSSR and 227 AFLP loci. A moderate level of within-population diversity was observed (hS = 0.549 for cpSSR and H-eB = 0.183 for AFLPs), which could be explained by the dioecious breeding system, longevity, and human mediated seed exchange. Compared to the semi-wild population, the cultivated population possessed relatively low genetic diversity, which suggests cultivation practice may have reduced the genetic diversity of E. ulmoides. Populations were low to moderately differentiated from one another (G(ST) = 0.281 for cpSSR, and theta(B) = 0.100 for AFLPs), which was also supported by the AMOVA analysis that 62.52 and 83.48 % total variation resided within populations based on cpSSR and AFLP analysis, respectively. An isolation by distance analysis revealed that geographical distances was not significantly correlated with genetic distance. Human activities such as seed selection and seed exchange could account for the genetic structure of cultivated populations. In addition, two genetic clusters were detected by the Structure analysis. For conservation purpose, an ex situ conservation measure for conserving the genetically distant populations to maximize genetic diversity of the species is recommended. |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/712]  |
| 专题 | 中国科学院武汉植物园 |
| 推荐引用方式 GB/T 7714 | Deng, Jianyun,Huang, Hongwen,Yao, Xiaohong. Genetic diversity in Eucommia ulmoides (Eucommiaceae), an endangered traditional Chinese medicinal plant[J]. CONSERVATION GENETICS,2012. |
| APA | Deng, Jianyun,Huang, Hongwen,&Yao, Xiaohong.(2012).Genetic diversity in Eucommia ulmoides (Eucommiaceae), an endangered traditional Chinese medicinal plant.CONSERVATION GENETICS. |
| MLA | Deng, Jianyun,et al."Genetic diversity in Eucommia ulmoides (Eucommiaceae), an endangered traditional Chinese medicinal plant".CONSERVATION GENETICS (2012). |
入库方式： OAI收割
来源：武汉植物园
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。