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Morphological variability between wild populations and inbred stocks of a Chinese minnow, Gobiocypris rarus
Shao, Yan1,2; Wang, Jianwei1; Qiao, Ye1; He, Yongfeng1,2; Cao, Wenxuan1; Wang, JW, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2007-11-01
Source PublicationZOOLOGICAL SCIENCE
ISSN0289-0003
Volume24Issue:11Pages:1094-1102
AbstractGobiocypris 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.; 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.
SubtypeArticle
KeywordGobiocypris Rarus Morphological Variation Morphometrics Meristics Inbred Strain
Department[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
Subject AreaZoology
DOI10.2108/zsj.24.1094
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaZoology
WOS SubjectZoology
WOS IDWOS:000252372200006
WOS KeywordSUNFISH LEPOMIS-GIBBOSUS ; PHENOTYPIC PLASTICITY ; RAINBOW-TROUT ; CRUCIAN CARP ; MORPHOMETRIC VARIATION ; OREOCHROMIS-NILOTICUS ; TROPHIC POLYMORPHISM ; GENETIC-ANALYSIS ; BODY MORPHOLOGY ; COHO SALMON
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8300
Collection期刊论文
Corresponding AuthorWang, JW, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Shao, Yan,Wang, Jianwei,Qiao, Ye,et al. Morphological variability between wild populations and inbred stocks of a Chinese minnow, Gobiocypris rarus[J]. ZOOLOGICAL SCIENCE,2007,24(11):1094-1102.
APA Shao, Yan,Wang, Jianwei,Qiao, Ye,He, Yongfeng,Cao, Wenxuan,&Wang, JW, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2007).Morphological variability between wild populations and inbred stocks of a Chinese minnow, Gobiocypris rarus.ZOOLOGICAL SCIENCE,24(11),1094-1102.
MLA Shao, Yan,et al."Morphological variability between wild populations and inbred stocks of a Chinese minnow, Gobiocypris rarus".ZOOLOGICAL SCIENCE 24.11(2007):1094-1102.
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