Delarbre C, Spruyt N, Delmarre C, Gallut C, Barriel V, Janvier P, Laudet V, Gachelin G
Département d'Immunologie, Institut Pasteur, 75015 Paris, France.
Genetics. 1998 Sep;150(1):331-44. doi: 10.1093/genetics/150.1.331.
We have determined the complete nucleotide sequence of the mitochondrial DNA (mtDNA) of the dogfish, Scyliorhinus canicula. The 16,697-bp-long mtDNA possesses a gene organization identical to that of the Osteichthyes, but different from that of the sea lamprey Petromyzon marinus. The main features of the mtDNA of osteichthyans were thus established in the common ancestor to chondrichthyans and osteichthyans. The phylogenetic analysis confirms that the Chondrichthyes are the sister group of the Osteichthyes.
我们已经确定了角鲨(Scyliorhinus canicula)线粒体DNA(mtDNA)的完整核苷酸序列。这条长度为16,697 bp的mtDNA拥有与硬骨鱼纲相同的基因组织,但与海七鳃鳗(Petromyzon marinus)不同。因此,硬骨鱼纲mtDNA的主要特征是在软骨鱼纲和硬骨鱼纲的共同祖先中确立的。系统发育分析证实,软骨鱼纲是硬骨鱼纲的姐妹类群。