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题名: Microsatellite DNA variation among samples of bronze gudgeon, Coreius heterodon, in the mainstem of the Yangtze River, China
作者: Cheng, Fei1, 2; Li, Wei2; Wu, Qingjiang1; Hallerman, Eric3; Xie, Songguang1, 4
通讯作者: Xie, SG (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China.
关键词: Coreius heterodon ; Genetic diversity ; Genetic subdivision ; Gezhouba Dam ; Three Gorges Dam
刊名: ICHTHYOLOGICAL RESEARCH
发表日期: 2013-04-01
DOI: 10.1007/s10228-012-0329-4
卷: 60, 期:2, 页:165-171
收录类别: SCI
文章类型: Article
部门归属: [Cheng, Fei ; Wu, Qingjiang ; Xie, Songguang] Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China ; [Cheng, Fei ; Li, Wei] Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430072, Hubei, Peoples R China ; [Hallerman, Eric] Virginia Polytech Inst & State Univ, Dept Fish & Wildlife Conservat, Blacksburg, VA 24061 USA ; [Xie, Songguang] Chinese Acad Sci, Inst Hydrobiol, Huaian Res Ctr, Huaian 223002, Jiangsu, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Basic Research Program of China (973 Program) [2010CB429005]; National Science Foundation of China [51209202]; Postdoctoral Natural Science Foundation of China [20100480924]; State Key Laboratory of Freshwater Ecology and Biotechnology [Y15C01]; Nature Conservancy; Chinese Academy of Sciences
类目[WOS]: Zoology
研究领域[WOS]: Zoology
摘要: Bronze gudgeon, Coreius heterodon, is an endemic and economically important fish in the Yangtze River, whose abundance has declined dramatically because of dam construction, overfishing, and water pollution. The Gezhouba and Three Gorges dams block connection of the bronze gudgeon populations above and below the dams. We collected bronze gudgeon from four sites in the mainstem of the Yangtze River, with one site above the dams and three sites below the dams, and studied genetic structure within and among the samples using 12 microsatellite DNA markers. Differences in indexes of genetic diversity were not significant among all the samples. No recent dramatic decrease of effective population size was inferred for all the samples using the population bottleneck test. Overall and pairwise genetic differentiation showed no significant genetic differentiation. Membership proportions of three genetic clusters inferred using assignment analysis were not significantly different among the samples. These results suggested that the genetic diversity and structure of bronze gudgeon were uniform across the samples. However, the Hardy-Weinberg equilibrium test, fixation index and linkage disequilibrium test indicated genetic subdivision of bronze gudgeon in the upper reach of the Three Gorges Dam. The present study and future studies including tributary samples will provide an important baseline of genetic diversity and population structure of bronze gudgeon in the Yangtze River, which is critical for monitoring and evaluating impacts of the large-scale dams on this species.
英文摘要: Bronze gudgeon, Coreius heterodon, is an endemic and economically important fish in the Yangtze River, whose abundance has declined dramatically because of dam construction, overfishing, and water pollution. The Gezhouba and Three Gorges dams block connection of the bronze gudgeon populations above and below the dams. We collected bronze gudgeon from four sites in the mainstem of the Yangtze River, with one site above the dams and three sites below the dams, and studied genetic structure within and among the samples using 12 microsatellite DNA markers. Differences in indexes of genetic diversity were not significant among all the samples. No recent dramatic decrease of effective population size was inferred for all the samples using the population bottleneck test. Overall and pairwise genetic differentiation showed no significant genetic differentiation. Membership proportions of three genetic clusters inferred using assignment analysis were not significantly different among the samples. These results suggested that the genetic diversity and structure of bronze gudgeon were uniform across the samples. However, the Hardy-Weinberg equilibrium test, fixation index and linkage disequilibrium test indicated genetic subdivision of bronze gudgeon in the upper reach of the Three Gorges Dam. The present study and future studies including tributary samples will provide an important baseline of genetic diversity and population structure of bronze gudgeon in the Yangtze River, which is critical for monitoring and evaluating impacts of the large-scale dams on this species.
关键词[WOS]: TROUT ONCORHYNCHUS-MYKISS ; PROCYPRIS-RABAUDI TCHANG ; ALLELE FREQUENCY DATA ; GENETIC DIVERSITY ; POPULATION-STRUCTURE ; F-STATISTICS ; ROCK CARP ; DIFFERENTIATION ; SOFTWARE ; DISTANCE
语种: 英语
WOS记录号: WOS:000320645100007
ISSN号: 1341-8998
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19559
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China
2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430072, Hubei, Peoples R China
3.Virginia Polytech Inst & State Univ, Dept Fish & Wildlife Conservat, Blacksburg, VA 24061 USA
4.Chinese Acad Sci, Inst Hydrobiol, Huaian Res Ctr, Huaian 223002, Jiangsu, Peoples R China

Recommended Citation:
Cheng, Fei; Li, Wei; Wu, Qingjiang; Hallerman, Eric; Xie, Songguang.Microsatellite DNA variation among samples of bronze gudgeon, Coreius heterodon, in the mainstem of the Yangtze River, China,ICHTHYOLOGICAL RESEARCH,2013,60(2):165-171
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