中国泥鳅属和副泥鳅属鱼类的分类整理  

TAXONOMIC REVISION OF CHINESE SPECIES OF THE GENERA MISGURNUS AND PARAMISGUENUS(CYPRINIFORMES:COBITIDAE)

作　　者：张慧[1] 王银肖 杨慧兰 谭慧敏 陈咏霞[1] ZHANG Hui;WANG Yin-Xiao;YANG Hui-Lan;TAN Hui-Min;CHEN Yong-Xia(College of Life Sciences,Hebei University,Baoding 071002,China)

机构地区：[1]河北大学生命科学学院,保定071002

出　　处：《水生生物学报》2021年第2期414-427,共14页Acta Hydrobiologica Sinica

基　　金：国家自然科学基金(31372166);河北省自然科学基金(C2016201055);河北省淡水养殖创新团队项目(HBCT2018180203)资助。

摘　　要：根据形态学特征及线粒体Cyt b和COⅠ基因对我国泥鳅属(Misgurnus)和副泥鳅属(Paramisgurnus)鱼类进行了分类整理。结果表明:泥鳅属和副泥鳅属鱼类在鳞焦大小,须长及基枕骨末端愈合程度等特征上存在差异。基于联合基因分析,泥鳅属和副泥鳅属属间遗传距离(15.2%—17.5%)接近于泥鳅属种间遗传距离(10.7%—18.4%);分子系统树显示我国泥鳅属鱼类未构成单系,副泥鳅属嵌套分布于泥鳅属中;北方泥鳅(Misgurnus bipartitus)和泥鳅(Misgurnus anguillicaudatus)亲缘关系近,其次是大鳞副泥鳅(Paramisgurnus dabryanus),黑龙江泥鳅(Misgurnus mohoity)位于系统树的基部。结合形态特征与分子数据,副泥鳅属应作为泥鳅属同属异名,大鳞副泥鳅应归入泥鳅属;北方泥鳅曾为黑龙江泥鳅的同物异名,与黑龙江泥鳅存在明显的形态差异,且两者亲缘关系较泥鳅远,北方泥鳅为有效种。A taxonomic revision of the Chinese loach fishes of the genera of Misgurnus and Paramisgurnus was made in this paper based on the morphology features and sequences of mitochondrial Cyt b and COⅠ gene.The results indicated that the species of Misgurnus and Paramisgurnus can be distinguished from the size of the scale,the length of the beard,and the degree of healing of the end of the basioccipital.The genetic distance between Misgurnus and Paramisgurnus were 15.2%—17.5%,which was very close to those among species for Misgurnus(10.7%—18.4%).Molecular phylogenetic analysis showed that the genus Misgurnus was not monophyletic,and Paramisgurnus was nested within Misgurnus.Misgurnus bipartitus and M.anguillicaudatus clustered together,and then clustered with Paramisgurnus dabryanus,M.mohoity was located at the basal of the phylogenetic tree.Based on the results of the morphology features and molecular data,Paramisgurnus should be recognized as a junior synonym of Misgurnus;M.bipartitus is a valid species distinct from M.mohoity.

关 键 词：鳅科 泥鳅属 副泥鳅属 鉴别特征 线粒体Cyt b COⅠ基因 

分 类 号：Q959.46[生物学—动物学]