Genetic diversity and population structure of Ottelia acuminata var. jingxiensis, an endangered endemic aquatic plant from southwest China
文献类型：期刊论文
| 作者 | Chen, Jin-Ming4; Wang, Qing-Feng2,4; Islam, Md. Rabiul3,4; Gichira, Andrew W.2,3,4; Lu, Meng-Xue1; Li, Zhi-Zhong3,4 |
| 刊名 | AQUATIC BOTANY
 |
| 出版日期 | 2019 |
| 卷号 | 152页码:20-26 |
| ISSN号 | 0304-3770 |
| 关键词 | Gene flow Genetic diversity Karst landform Microsatellite loci Ottelia |
| DOI | 10.1016/j.aquabot.2018.09.004 |
| 英文摘要 | O. acuminata var. jingxiensis, an endangered endemic species, is only distributed in rivers or streams in karst areas of southwest China. In this study, the genetic variation of 10 natural populations sampled from karst rivers was detected using 12 SSR markers. The results revealed a moderate level of genetic diversity within the populations (mean H-E = 0.441, I = 0.781) and population structure which significantly correlated with geographic distance (r = 0.825, P < 0.01). This pattern could be attributed to either restricted gene flow (Nm = 0.341) between the long-isolated populations or the occurrence of biparental inbreeding in closely distributed individuals (F-IS = 0.362). The analysis of molecular variance (AMOVA) revealed a high level of genetic variation among the populations (F-ST = 0.423) of O. acuminata var. jingxiensis and accounted for over 55% of the total genetic differentiation. Compared to gene flow, genetic drift is more likely to promote the current genetic structure because of low gene exchange among isolated habitats. Complete geographical isolation offers an opportunity for allopatric speciation at relatively small spatial scales that promotes high endemism. Our result indicated that it is likely that cryptic varieties exist in O. acuminata, such as Baishou (BS) and Luzhai (LZ) populations. Based on the available results, both in situ and ex situ efforts should be used to conserve this species. |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB31000000] ; Wuhan Botanical Garden (CAS)[Y655261W03] ; Special Foundation for State Basic Working Program of China[2013FY112300] |
| WOS研究方向 | Plant Sciences ; Marine & Freshwater Biology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000453490500004 |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/6362]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Chen, Jin-Ming; Wang, Qing-Feng |
| 作者单位 | 1.South Cent Univ Nationalities, Coll Life Sci, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Sinoafrica Joint Res Ctr, Wuhan 430074, Hubei, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Jin-Ming,Wang, Qing-Feng,Islam, Md. Rabiul,et al. Genetic diversity and population structure of Ottelia acuminata var. jingxiensis, an endangered endemic aquatic plant from southwest China[J]. AQUATIC BOTANY,2019,152:20-26. |
| APA | Chen, Jin-Ming,Wang, Qing-Feng,Islam, Md. Rabiul,Gichira, Andrew W.,Lu, Meng-Xue,&Li, Zhi-Zhong.(2019).Genetic diversity and population structure of Ottelia acuminata var. jingxiensis, an endangered endemic aquatic plant from southwest China.AQUATIC BOTANY,152,20-26. |
| MLA | Chen, Jin-Ming,et al."Genetic diversity and population structure of Ottelia acuminata var. jingxiensis, an endangered endemic aquatic plant from southwest China".AQUATIC BOTANY 152(2019):20-26. |
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。