黑龙江水系鱼类染色体组型的研究 Ⅲ鳅科3种鱼的染色体数和组型,兼论核型与系统分类的关系  

The Study on the Karyotype of the fishes in theHeilongjiang River SystemⅢ .Chromosome Numbers and Karyotypes of Three Speccies of Fishes inCobitidae, With the Relationship of Karyotype and Phylogenetic Classification

作　　者：王雪[1] 谢莉莉 

机构地区：[1]黑龙江大学生物研究所 [2]哈尔滨师专生物系

出　　处：《黑龙江大学自然科学学报》1990年第2期91-96,共6页Journal of Natural Science of Heilongjiang University

摘　　要：本文初次报道了分布于黑龙江水系的花斑付沙鳅、黑龙江花鳅和黑龙江泥鳅的染色体组型.结果2n均为50,核型组成不同.综合泥鳅属的地理分布、形态特征和核型分析结果,认为黑龙江泥鳅和泥鳅的分化可能为地理亚种的分化,并建议对泥鳅属2n=50的类群的分类进行重新整理.鳅科的宗系关系与核型演化的方向是吻合的.Abstract This article first reported the karyotypes of Parabtia fasciata, Cibitis lutheriand Misgurnus mohoity in the Heilongjiang River System. The results indicate that the fishes share a diploid chromosome numbers(2n) of 50, but they are different in their karyotypes. Synthesized geographical distribution, formal character and results of karyotype analyses of Misgurnus, I think that differentiation from M. mohoity to M.anguillicaudatus could be differentiation of geographical subspecies, moreover, I make a suggestion that the kind of Misgurnus with 2n = 50 will anew be carried on classify. The cladogr-am and the evolutional of karyo type of Cobitidae is identical. .?-------------

关 键 词：鳅科 核型 分类 鱼类 染色体 

分 类 号：Q959.403[生物学—动物学]