IHB OpenIR  > 水生生物多样性与资源保护研究中心  > 期刊论文
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 PublicationECOLOGY AND EVOLUTION
ISSN2045-7758
Volume5Issue:4Pages:984-995
AbstractGeographic 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.
SubtypeArticle
KeywordExpansion 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
DOI10.1002/ece3.1413
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEcology
WOS IDWOS:000349898100015
WOS KeywordQINGHAI-TIBETAN PLATEAU ; HUMAN MITOCHONDRIAL-DNA ; POPULATION-STRUCTURE ; STATISTICAL-METHOD ; SPECIES RICHNESS ; F-STATISTICS ; FRESH-WATER ; ICE AGES ; DISTANCE ; DIFFERENTIATION
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Document Type期刊论文
Identifierhttp://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 AuthorHe, SP (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China.
Affiliation1.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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