生态学杂志2017，Vol.36Issue(8)：2252-2256,5.DOI:10.13292/j.1000-4890.201708.011
中华小长臂虾(Palaemonetes sinensis)4个群体的形态差异
Morphological differences among four populations of Chinese grass shrimp (Palaemonetes sinensis)
摘要
Abstract
Morphological differences in 18 morphological parameters among four populations (Anshan,Dalian,Shenyang and Panjin population) of Chinese grass shrimp (Palaemonetes sinensis) were studied using three multivariation analysis methods,including cluster analysis,principal component analysis and discriminant analysis.Cluster analysis revealed that the populations of Panjin and Anshan were clustered together due to the smallest difference in their morphology,while had a gradually increased difference with Dalian and Shenyang populations.The Mantel matrix tests showed that there was no significant relationship between geographic and Euclidean distances (r=0.576,P=0.901).Seven principal components with an accumulative variance percentage of 84.74％ were extracted by principal component analysis,and indicated the morphological differences mainly resulting from carapace characters.Four discriminant functions were obtained,with the discrimination accuracy being 66.00％-97.00％,and the integrated discrimination accuracy being 77.83％.The results provided a scientific basis for the protection and use of germplasm resources and for artificial selection breeding of Chinese grass shrimps.关键词
中华小长臂虾/群体/聚类分析/主成分分析/判别分析Key words
Palaemonetes sinensis/population/cluster analysis/principal component analysis/discriminant analysis引用本文复制引用
赵莹莹,白文林,李晓东,朱晓琛,徐伟彬,姜冶,李智,韩志斌,王诗跃,董婧,魏华..中华小长臂虾(Palaemonetes sinensis)4个群体的形态差异[J].生态学杂志,2017,36(8):2252-2256,5.基金项目
辽宁省农业领域青年科技创新人才培养资助计划项目(2015044)和国家科技支撑计划项目(2012BAD26B04-02)资助. （2015044）
