Genetic structure and historical demography of Schizothorax nukiangensis (Cyprinidae) in continuous habitat
文献类型：期刊论文
| 作者 | Chen, Weitao1,2; Du, Kang1,2; He, Shunping1 |
| 刊名 | ECOLOGY AND EVOLUTION
 |
| 出版日期 | 2015-02-01 |
| 卷号 | 5期号:4页码:984-995 |
| 关键词 | Expansion event genetic structure isolated by distance Nujiang River population bottleneck Schizothorax nukiangensis |
| ISSN号 | 2045-7758 |
| 通讯作者 | He, SP (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China. |
| 英文摘要 | Geographic distance, different living habitats or Pleistocene climatic oscillations have frequently been found to shape population genetic structure in many species. The genetic structure of Schizothorax nukiangensis, a high altitude, valuable fish species, which is distributed throughout the Nujiang River, was investigated by mitochondrial DNA sequence analysis. The cytochrome c oxidase subunit I (COI), cytochrome b (cytb), and the mitochondrial control region (MCR) of S. nukiangensis were concatenated for examination of population structure and demographic history. The concatenated data set (2405bp) implied a pronounced genetic population structure (overall F-ST=0.149) and defined two population units. Strong differentiation was detected between the Sanjiangkou (SJK) population and other populations due to environmental heterogeneity, dispersal ability, and/or glacial cycles. Additional DNA sequencing of the nuclear RAG2 gene also examined significant differentiation between two units and between SJK and the upstream populations (U-unit). Recent expansion events suggest that S. nukiangensis may have undergone a rapid increase during warm interglacial periods. Surprisingly, S.nukiangensis appears to have undergone an obvious expansion during the last glaciations (LG) for cold hardiness and a sharp contraction from 1.5ka to the present. However, two population units exhibited different reflections during the LG, which might be closely related to their living habitats and cold hardiness. A clear pattern of isolation by distance was detected in S.nukiangensis due to feeding habits, limited dispersal ability, and/or philopatry. It is vitally important that more attention be given to S.nukiangensis due to low genetic diversity, lack of gene flow, and recent population contraction. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Ecology |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | QINGHAI-TIBETAN PLATEAU ; HUMAN MITOCHONDRIAL-DNA ; POPULATION-STRUCTURE ; STATISTICAL-METHOD ; SPECIES RICHNESS ; F-STATISTICS ; FRESH-WATER ; ICE AGES ; DISTANCE ; DIFFERENTIATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000349898100015 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/23836]  |
| 专题 | 水生生物研究所_水生生物多样性与资源保护研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Weitao,Du, Kang,He, Shunping. Genetic structure and historical demography of Schizothorax nukiangensis (Cyprinidae) in continuous habitat[J]. ECOLOGY AND EVOLUTION,2015,5(4):984-995. |
| APA | Chen, Weitao,Du, Kang,&He, Shunping.(2015).Genetic structure and historical demography of Schizothorax nukiangensis (Cyprinidae) in continuous habitat.ECOLOGY AND EVOLUTION,5(4),984-995. |
| MLA | Chen, Weitao,et al."Genetic structure and historical demography of Schizothorax nukiangensis (Cyprinidae) in continuous habitat".ECOLOGY AND EVOLUTION 5.4(2015):984-995. |
入库方式： OAI收割
来源：水生生物研究所
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。