Low level of genetic variation and restricted gene flow in water lily Nymphaea tetragona populations from the Amur River
文献类型：期刊论文
| 作者 | Chen, Yuan-Yuan1,2; Fan, Xiang-Rong1,2; Li, Zhi1,2; Li, Wei1,2; Huang, Wen-Min1,2 |
| 刊名 | AQUATIC BOTANY
 |
| 出版日期 | 2017-05-01 |
| 卷号 | 140页码:55-61 |
| 关键词 | Genetic bottlenecks Genetic diversity Habitat fragmentation Inbreeding Gene flow Nymphaea tetragona |
| ISSN号 | 0304-3770 |
| DOI | 10.1016/j.aquabot.2016.10.003 |
| 英文摘要 | Nymphaea tetragona is the most widely distributed water lily in China. It is also an important ornamental plant. However, with the degradation and fragmentation of wetlands in China, populations of N. tetragona have shrunken rapidly in recent decades. Genetic variation and population structure of eight N. tetragona populations from the Amur River basin in northeastern China were assessed by inter-simple sequence repeat (ISSR) markers. Thirteen primers produced a total of 289 unambiguous bands of which 234(81.0%) were polymorphic. N. tetragona appeared to possess a low level of gene diversity within the population (P-p=43.3%, H-E=0.151 and I=0.226). The main factors responsible for that were the annual life history and inbreeding reproductive system (F-IS=0.261 or 0.344) of the plant, and recent genetic bottlenecks in populations due to degrading habitats. The F statistics calculated by different approaches consistently revealed a high genetic differentiation among populations, with the proportion of genetic differentiation among populations accounting for >35% of the total genetic diversity (G(ST) = 0.367, theta(B) = 0.371 and F = 0.410). The evident population structure of N. tetragona could be due to self-fertilizing reproduction, restricted gene flow (Nm = 0.424, M = 0.376) and genetic drift. These results are discussed in relation to both in situ and ex situ efforts to conserve this species. (C) 2016 Elsevier B.V. All rights reserved. |
| 资助项目 | National Scientific Foundation of China[30370145] ; National Key Research and Development Program of China[2016YFA0601000] ; Natural Science Foundation of Shandong Province of China[ZR2013CM002] |
| WOS研究方向 | Plant Sciences ; Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000405044500009 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/1373]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Huang, Wen-Min |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Plant & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Hubei Key Lab Wetland Evolut & Ecol Restorat, Wuhan 430074, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Yuan-Yuan,Fan, Xiang-Rong,Li, Zhi,et al. Low level of genetic variation and restricted gene flow in water lily Nymphaea tetragona populations from the Amur River[J]. AQUATIC BOTANY,2017,140:55-61. |
| APA | Chen, Yuan-Yuan,Fan, Xiang-Rong,Li, Zhi,Li, Wei,&Huang, Wen-Min.(2017).Low level of genetic variation and restricted gene flow in water lily Nymphaea tetragona populations from the Amur River.AQUATIC BOTANY,140,55-61. |
| MLA | Chen, Yuan-Yuan,et al."Low level of genetic variation and restricted gene flow in water lily Nymphaea tetragona populations from the Amur River".AQUATIC BOTANY 140(2017):55-61. |
入库方式： OAI收割
来源：武汉植物园
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