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出 处:《Zoological Research》1994年第S1期36-44,共9页动物学研究(英文)
基 金:国家重点基金
摘 要:本文应用分支系统学原理对金线鲃鱼类进行特征分析,并以四须鲃属作为外类群。结果证实金线鲃鱼类为一个单源群,包含两个主要分支,鳞片和额骨的演化具有重要的系统发育意义。用聚类分析的方法探讨其种间的相似性,得到与分支分析一致的结果。因此可建立金线鲃属的系统发育关系,并分为两个亚属:金线鲃指名亚属和驼背鲃亚属。The sinocyclocheiline fishes are an endemic group distributing in Yunnan-Guizhou Plateau and northern Guangxi Province, China. Phylogenetic relationships of the sinocyclocheiline fishes are studied with cladistic analysis and Barbodes is selected as the out-group. The result indicates that the sinocyclocheiline fishes are a monopheletic group which consists of two major phyletic lines, and the variations of the frontal, the scale number and scale radii are discovered to be of an phylogenetic significance. Phenetic relationships among 19 species of the sinocyclocheiline fishes are analysed on the information of external characters and skeleton characters with clustering methods, which are identical with the result of cladistic analysis. Sinocyclocheilus can be divided two subgenera: Sinocyclocheilus Fang s. str. and Gibbibarbus Dai.
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