| Genetic structure and historical demography of Schizothorax nukiangensis (Cyprinidae) in continuous habitat | |
| Chen, Weitao1,2; Du, Kang1,2; He, Shunping1; He, SP (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China. | |
| 2015-02-01 | |
| Source Publication | ECOLOGY AND EVOLUTION
 |
| ISSN | 2045-7758 |
| Volume | 5Issue:4Pages:984-995 |
| Abstract | 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. |
| Subtype | Article |
| Keyword | Expansion Event Genetic Structure Isolated By Distance Nujiang River Population Bottleneck Schizothorax Nukiangensis |
| Department | [Chen, Weitao ; Du, Kang ; He, Shunping] Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China ; [Chen, Weitao ; Du, Kang] Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| DOI | 10.1002/ece3.1413 |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS Subject | Ecology |
| WOS ID | WOS:000349898100015 |
| WOS Keyword | QINGHAI-TIBETAN PLATEAU ; HUMAN MITOCHONDRIAL-DNA ; POPULATION-STRUCTURE ; STATISTICAL-METHOD ; SPECIES RICHNESS ; F-STATISTICS ; FRESH-WATER ; ICE AGES ; DISTANCE ; DIFFERENTIATION |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/342005/23836 |
| Collection | 水生生物多样性与资源保护研究中心_期刊论文 |
| Corresponding Author | He, SP (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China. |
| Affiliation | 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 |
| Recommended Citation GB/T 7714 | Chen, Weitao,Du, Kang,He, Shunping,et al. 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,&He, SP .(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. |
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