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题名: Morphological Variation Among Wild Populations of Chinese Rare Minnow (Gobiocypris rarus): Deciphering the Role of Evolutionary Processes
作者: He, Yongfeng1, 2; Li, Rui1; Wang, Jianwei1; Blanchet, Simon3; Lek, Sovan3
通讯作者: Wang, JW (reprint author), Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China.
关键词: Gobiocypris rarus ; morphological variation ; morphometrics ; sexual dimorphism ; population differentiation
刊名: ZOOLOGICAL SCIENCE
发表日期: 2013-06-01
DOI: 10.2108/zsj.30.475
卷: 30, 期:6, 页:475-483
收录类别: SCI
文章类型: Article
部门归属: [He, Yongfeng; Li, Rui; Wang, Jianwei] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China; [He, Yongfeng] Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Hubei, Peoples R China; [Blanchet, Simon; Lek, Sovan] Univ Toulouse 3, CNRS, Lab Evolut & Diversite Biol, UMR 5174, F-31062 Toulouse, France
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Natural Science Foundation of China (NSFC) [30670292]; China Hubei Provincial Science and Technology Department; Chinese Academy of ScienFces [CZBZX-1]; Ministry of Environmental Protection of China [2009ZX07527-005]
类目[WOS]: Zoology
研究领域[WOS]: Zoology
摘要: Gobiocypris rarus Ye et Fu (1983) is an endemic cyprinid fish in China, and is considered to be an endangered species. From a conservation perspective, its population structure is interesting. In the present study, morphological variation, including morphometric and meristic traits, was assessed among wild samples collected in the upper Yangtze River basin. There were no significant meristic differences between sexes or among populations, except for scales in lateral line (LS). However, there were significant morphometric differences not only between sexes but also among populations. In discriminant function analysis, the first four discriminant functions explained 75.5% and 78% of the among-population morphometric variation for males and females, respectively. Almost all the truss network morphometric traits significantly contributed to population discrimination. By using all of the truss network morphometric traits, overall random assignments of male and female individuals into their original population were both 73.5%. In addition, the degree of differentiation in phenotypic traits (P-ST) significantly exceeds that in neutral molecular markers (F-ST). However, no significant correlation between P-ST and F-ST was found in males or females. Overall, these results suggest that two evolutionary processes, including phenotypic plasticity and natural selection, may contribute to the morphological patterns observed in G. rarus.
英文摘要: Gobiocypris rarus Ye et Fu (1983) is an endemic cyprinid fish in China, and is considered to be an endangered species. From a conservation perspective, its population structure is interesting. In the present study, morphological variation, including morphometric and meristic traits, was assessed among wild samples collected in the upper Yangtze River basin. There were no significant meristic differences between sexes or among populations, except for scales in lateral line (LS). However, there were significant morphometric differences not only between sexes but also among populations. In discriminant function analysis, the first four discriminant functions explained 75.5% and 78% of the among-population morphometric variation for males and females, respectively. Almost all the truss network morphometric traits significantly contributed to population discrimination. By using all of the truss network morphometric traits, overall random assignments of male and female individuals into their original population were both 73.5%. In addition, the degree of differentiation in phenotypic traits (P-ST) significantly exceeds that in neutral molecular markers (F-ST). However, no significant correlation between P-ST and F-ST was found in males or females. Overall, these results suggest that two evolutionary processes, including phenotypic plasticity and natural selection, may contribute to the morphological patterns observed in G. rarus.
关键词[WOS]: STICKLEBACK GASTEROSTEUS-ACULEATUS ; SEXUAL-DIMORPHISM ; PHENOTYPIC PLASTICITY ; MORPHOMETRIC VARIATION ; CONTRASTING PATTERNS ; STOCK IDENTIFICATION ; EXTERNAL MORPHOLOGY ; QUANTITATIVE TRAITS ; GENETIC-DIVERGENCE ; BROWN TROUT
语种: 英语
WOS记录号: WOS:000319468500009
ISSN号: 0289-0003
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19254
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
2.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Hubei, Peoples R China
3.Univ Toulouse 3, CNRS, Lab Evolut & Diversite Biol, UMR 5174, F-31062 Toulouse, France
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