Genetic diversity of Potamogeton maackianus in the Yangtze River
文献类型：期刊论文
| 作者 | Li, W; Xia, LQ; Li, JQ; Wang, GX |
| 刊名 | AQUATIC BOTANY
 |
| 出版日期 | 2004-12-01 |
| 卷号 | 80期号:4页码:227-240 |
| 关键词 | Potamogeton maackianus A. Benn. RAPD genetic diversity genetic structure gene flow the Yangtze River |
| ISSN号 | 0304-3770 |
| DOI | 10.1016/j.aquabot.2004.07.003 |
| 英文摘要 | The genetic diversity and genetic structure of Potamogeton maackianus A. Berm. in seven lakes of the middle reaches of the Yangtze River were studied using random amplified polymorphic DNA (RAPD). The gene flow and genetic relationships between populations were analyzed in combination with the geographic distribution and the river system of the lakes. A total of 112 bands were amplified and 59 bands (52.7%) were polymorphic. Each of the 86 individuals investigated exhibited a unique genotype. The Shannon index was used to measure genetic diversity, and the total genetic diversity was 0.414 and the mean genetic diversity of populations was 0.148. P. maackianus showed a relatively high level of genetic diversity. Analyses of molecular variance (AMOVA) revealed that 63.8% of the total genetic diversity existed among populations and 36.2% within them, which was consistent with the genetic structure computed by the Shannon index: among-population variation and within population variation accounted for 64.4 and 35.7%, respectively. The gene flow among populations was very limited, and genetic isolation among populations occurred even though they were connected through the Yangtze River. Cluster analysis divided the seven populations into two groups, and the genetic relationships among the populations had no obvious association with their geographic distribution, or the historical relations with the river system of the lakes where they occurred. Mantel tests revealed that distance was an important factor affecting the genetic structure in populations. The development history of P. maackianus populations in Honghu Lake had an obvious effect on its genetic structure. (C) 2004 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Plant Sciences ; Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000226424700001 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/1209]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Li, W |
| 作者单位 | 1.Kyoto Univ, Grad Sch Agr, Kyoto 6068502, Japan 2.Chinese Acad Sci, Wuhan Bot Garden, Lab Aquat Plant Biol, Wuhan 430074, Hubei, Peoples R China 3.Zhanjiang Ocean Univ, Coll Fisheries, Zhanjiang 524025, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, W,Xia, LQ,Li, JQ,et al. Genetic diversity of Potamogeton maackianus in the Yangtze River[J]. AQUATIC BOTANY,2004,80(4):227-240. |
| APA | Li, W,Xia, LQ,Li, JQ,&Wang, GX.(2004).Genetic diversity of Potamogeton maackianus in the Yangtze River.AQUATIC BOTANY,80(4),227-240. |
| MLA | Li, W,et al."Genetic diversity of Potamogeton maackianus in the Yangtze River".AQUATIC BOTANY 80.4(2004):227-240. |
入库方式： OAI收割
来源：武汉植物园
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