Genetic variation in cultivated Rheum tanguticum populations
文献类型：期刊论文
| 作者 | Hu, Yanping1; Xie, Xiaolong2; Wang, Li1; Zhang, Huaigang1; Yang, Jian1; Li, Yi1 |
| 刊名 | genetics and molecular biology
 |
| 出版日期 | 2014 |
| 卷号 | 37期号:3页码:540-548 |
| 关键词 | cultivated populations genetic variation ISSR Polygonaceae Rheum tanguticum Maxim. ex Balf |
| ISSN号 | 1415-4757 |
| 中文摘要 | 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 of gene differentiation (g(st) = 0.2742) and bayesian analysis (theta(b) = 0.1963). the mantel test revealed no significant correlation between genetic and geographic distances among populations (r = 0.1176, p = 0.3686). upgma showed that the five cultivated populations were separated into three clusters, which was in good accordance with the results provided by the bayesian software structure (k = 3). a short domestication history and no artificial selection may be an effective way of maintaining and conserving the gene pools of wild r. tanguticum. |
| 英文摘要 | 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 of gene differentiation (g(st) = 0.2742) and bayesian analysis (theta(b) = 0.1963). the mantel test revealed no significant correlation between genetic and geographic distances among populations (r = 0.1176, p = 0.3686). upgma showed that the five cultivated populations were separated into three clusters, which was in good accordance with the results provided by the bayesian software structure (k = 3). a short domestication history and no artificial selection may be an effective way of maintaining and conserving the gene pools of wild r. tanguticum. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | biochemistry & molecular biology ; genetics & heredity |
| 研究领域[WOS] | biochemistry & molecular biology ; genetics & heredity |
| 关键词[WOS] | multilocus genotype data ; qinghai-tibet plateau ; issr markers ; diversity ; wild ; china ; rhubarb ; l. ; domestication ; polygonaceae |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000342995600010 |
| 公开日期 | 2014-12-19 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/4267]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810008, Peoples R China 2.Henan Univ Tradit Chinese Med, Sch Pharm, Zhengzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Yanping,Xie, Xiaolong,Wang, Li,et al. Genetic variation in cultivated Rheum tanguticum populations[J]. genetics and molecular biology,2014,37(3):540-548. |
| APA | Hu, Yanping,Xie, Xiaolong,Wang, Li,Zhang, Huaigang,Yang, Jian,&Li, Yi.(2014).Genetic variation in cultivated Rheum tanguticum populations.genetics and molecular biology,37(3),540-548. |
| MLA | Hu, Yanping,et al."Genetic variation in cultivated Rheum tanguticum populations".genetics and molecular biology 37.3(2014):540-548. |
入库方式： OAI收割
来源：西北高原生物研究所
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