Chinese Acad Sci, Kunming Inst Zool, Key Lab Cellular & Mol Evolut, Kunming 650223, Peoples R China; Chinese Acad Fishery Zool, Yangtze River Inst Fisheries, Jingzhou 434000, Peoples R China; Fudan Univ, Inst Genet, Shanghai 200433, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Acipenseriformes is an endangered primitive fish group, which occupies a special place in the history of ideas concerning fish evolution, even in vertebrate evolution. However, the classification and evolution of the fishes have been debated. The mitochondrial DNA (mtDNA) ND4L and partial ND4 genes were first sequenced in twelve species of the order Acipenseriformes, including endemic Chinese species. The following points were drawn from DNA sequences analysis: (i) the two species of Huso can be ascribed to Acipenser; (ii) A. dabryanus is the mostly closely related to A. sinensis, and most likely the landlocked form of A. sinensis; (iii) genus Acipenser in trans-Pacific region might have a common origin; (iv) mtDNA ND4L and ND4 genes are the ideal genetic markers for phylogenetic analysis of the order Acipenseriformes.
ZHANG Siming; ZHANG Yaping; ZHENG Xiangzhong; CHEN Yongjiu; DENG Huai; WANG Dengqiang; WEI Qiwei; ZHANG Yunwu; NIE Long & WU Qingjiang.Molecular phylogenetic systematics of twelve species of acipenseriformes based on mtDNA ND4L-ND4 gene sequence analysis,SCIENCE IN CHINA SERIES C-LIFE SCIENCES,2000,43(2):129-137