Abundant historical gene flow within and among river systems for populations of Ottelia acuminata var. jingxiensis, an endangered macrophyte from southwest China
文献类型：期刊论文
| 作者 | Fan, Xiang-Rong1,4,5,6; Njeri, Henry Kariuki2,3; Li, Wei4,5; Chen, Yuan-Yuan4,5 |
| 刊名 | AQUATIC BOTANY
 |
| 出版日期 | 2019-08-01 |
| 卷号 | 157页码:1-9 |
| 关键词 | Population connectivity Genetic structure Gene flow Ottelia acuminate Microsatellite variation |
| ISSN号 | 0304-3770 |
| DOI | 10.1016/j.aquabot.2019.05.002 |
| 英文摘要 | Dispersal is a key evolutionary force affecting gene flow and genetic diversity. Therefore, analysis of population connectivity plays an important role in protecting endangered species. Ottelia acuminata var. jingxiensis is a perennial endangered aquatic plant, and present in several karst rivers of Yunnan-Guizhou Plateau. We estimated the genetic variation and population connectivity by nuclear microsatellites in 11 populations mainly from three rivers. The plant showed low genetic diversity (H-E = 0.205-0.367), which was mainly explained by its critically restricted geographical range. Meanwhile, relatively low genetic differentiation (F-ST = 0.186; G ''(ST) = 0.242) was found compared with that of other studies about varieties of O. acuminata in isolated habitats. Cluster analyses based on different approaches consistently showed populations from the same river clustered together, suggesting water flow acting as corridors for dispersal; additionally, bidirectional gene flows within and among rivers indicated that zoochory or mankind were also major contributors to gene exchange. The results showed that contemporary gene flow was much lower than historical gene flow, suggesting that recent habitat fragmentation resulted in decreased gene flow. We recommend watercourse dredging within rivers to enhance habitat stability and to improve connectivity among populations. In addition, the different populations from different rivers or isolated habitats should be protected to maintain the genetic diversity. |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB31010000] ; Talent Program of Wuhan Botanical Garden of the Chinese Academy of Sciences[Y855291B01] ; China's Ministry of Science & Technology under Grant of the National Key R&D Programme of China[2016YFA0601001] |
| WOS研究方向 | Plant Sciences ; Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000518578100001 |
| 出版者 | ELSEVIER |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/15020]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Chen, Yuan-Yuan |
| 作者单位 | 1.Tibet Univ, Coll Sci, Lhasa 850000, Tibet Autonomou, Peoples R China 2.Chinese Acad Sci, Sino Africa Joint Res Ctr, Wuhan 430074, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Plant & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China 5.Chinese Acad Sci, Wuhan Bot Garden, Hubei Key Lab Wetland Evolut & Ecol Restorat, Wuhan 430074, Hubei, Peoples R China 6.Tibet Univ, Res Ctr Ecol & Environm Qinghai Tibetan Plateau, Lhasa 850000, Tibet Autonomou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Xiang-Rong,Njeri, Henry Kariuki,Li, Wei,et al. Abundant historical gene flow within and among river systems for populations of Ottelia acuminata var. jingxiensis, an endangered macrophyte from southwest China[J]. AQUATIC BOTANY,2019,157:1-9. |
| APA | Fan, Xiang-Rong,Njeri, Henry Kariuki,Li, Wei,&Chen, Yuan-Yuan.(2019).Abundant historical gene flow within and among river systems for populations of Ottelia acuminata var. jingxiensis, an endangered macrophyte from southwest China.AQUATIC BOTANY,157,1-9. |
| MLA | Fan, Xiang-Rong,et al."Abundant historical gene flow within and among river systems for populations of Ottelia acuminata var. jingxiensis, an endangered macrophyte from southwest China".AQUATIC BOTANY 157(2019):1-9. |
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。