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学科主题: Zoology
题名: Morphological variability between wild populations and inbred stocks of a Chinese minnow, Gobiocypris rarus
作者: Shao, Yan1, 2; Wang, Jianwei1; Qiao, Ye1; He, Yongfeng1, 2; Cao, Wenxuan1
通讯作者: Wang, JW, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: Gobiocypris rarus ; morphological variation ; morphometrics ; meristics ; inbred strain
刊名: ZOOLOGICAL SCIENCE
发表日期: 2007-11-01
DOI: 10.2108/zsj.24.1094
卷: 24, 期:11, 页:1094-1102
收录类别: SCI
文章类型: Article
部门归属: [Shao, Yan; Wang, Jianwei; Qiao, Ye; He, Yongfeng; Cao, Wenxuan] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Shao, Yan; He, Yongfeng] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Zoology
研究领域[WOS]: Zoology
摘要: Gobiocypris rarus, a small, native cyprinid fish, is currently widely used in research on fish pathology, genetics, toxicology, embryology, and physiology in China. To develop this species as a model laboratory animal, inbred strains have been successfully created. In this study, to explore a method to discriminate inbred strains and evaluate inbreeding effects, morphological variation among three wild populations and three inbred stocks of G. rarus was investigated by the multivariate analysis of eight meristic and 30 morphometric characters. Tiny intraspecific variations in meristic characters were found, but these were not effective for population distinction. Stepwise discriminant analysis and cluster analysis of conventional measures and truss network data showed considerabe divergence among populations, especially between wild populations and inbred stocks. The average discriminant accuracy for all populations was 82.1% based on conventional measures and 86.4% based on truss data, whereas the discriminant accuracy for inbred strains was much higher. These results suggested that multivariate analyses of morphometric characters are an effective method for discriminating inbred strains of G. rarus. Morphological differences between wild populations and inbred strains appear to result from both genetic differences and environmental factors. Thirteen characters, extracted from stepwise discriminant analysis, played important roles in morphological differentiation. These characters were mainly measures related to body depth and head size.
英文摘要: Gobiocypris rarus, a small, native cyprinid fish, is currently widely used in research on fish pathology, genetics, toxicology, embryology, and physiology in China. To develop this species as a model laboratory animal, inbred strains have been successfully created. In this study, to explore a method to discriminate inbred strains and evaluate inbreeding effects, morphological variation among three wild populations and three inbred stocks of G. rarus was investigated by the multivariate analysis of eight meristic and 30 morphometric characters. Tiny intraspecific variations in meristic characters were found, but these were not effective for population distinction. Stepwise discriminant analysis and cluster analysis of conventional measures and truss network data showed considerabe divergence among populations, especially between wild populations and inbred stocks. The average discriminant accuracy for all populations was 82.1% based on conventional measures and 86.4% based on truss data, whereas the discriminant accuracy for inbred strains was much higher. These results suggested that multivariate analyses of morphometric characters are an effective method for discriminating inbred strains of G. rarus. Morphological differences between wild populations and inbred strains appear to result from both genetic differences and environmental factors. Thirteen characters, extracted from stepwise discriminant analysis, played important roles in morphological differentiation. These characters were mainly measures related to body depth and head size.
关键词[WOS]: SUNFISH LEPOMIS-GIBBOSUS ; PHENOTYPIC PLASTICITY ; RAINBOW-TROUT ; CRUCIAN CARP ; MORPHOMETRIC VARIATION ; OREOCHROMIS-NILOTICUS ; TROPHIC POLYMORPHISM ; GENETIC-ANALYSIS ; BODY MORPHOLOGY ; COHO SALMON
语种: 英语
WOS记录号: WOS:000252372200006
ISSN号: 0289-0003
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8300
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Shao, Yan; Wang, Jianwei; Qiao, Ye; He, Yongfeng; Cao, Wenxuan.Morphological variability between wild populations and inbred stocks of a Chinese minnow, Gobiocypris rarus,ZOOLOGICAL SCIENCE,2007,24(11):1094-1102
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