Yokobori S, Hasegawa M, Ueda T, Okada N, Nishikawa K, Watanabe K
Department of Biological Sciences, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama, Japan.
J Mol Evol. 1994 Jun;38(6):602-9. doi: 10.1007/BF00175880.
To clarify the relationship among coelacanths, lungfishes, and tetrapods, the amino acid sequences deduced from the nucleotide sequences of mitochondrial cytochrome oxidase subunit I (COI) genes were compared. The phylogenetic tree of these animals, including the coelacanth Latimeria chalumnae and the lungfish Lepidosiren paradoxa, was inferred by several methods. These analyses consistently indicate a coelacanth/lungfish clade, to which little attention has been paid by previous authors with the exception of some morphologists. Overall evidence of other mitochondrial genes reported previously and the results of this study equally support the coelacanth/lungfish and lungfish/tetrapod clades, ruling out the coelacanth/tetrapod clade.
为了阐明腔棘鱼、肺鱼和四足动物之间的关系，对从线粒体细胞色素氧化酶亚基I（COI）基因的核苷酸序列推导出来的氨基酸序列进行了比较。通过几种方法推断了这些动物的系统发育树，其中包括腔棘鱼拉蒂迈鱼和肺鱼南美肺鱼。这些分析一致表明存在一个腔棘鱼/肺鱼分支，除了一些形态学家外，之前的作者很少关注这一分支。先前报道的其他线粒体基因的总体证据以及本研究的结果同样支持腔棘鱼/肺鱼分支和肺鱼/四足动物分支，排除了腔棘鱼/四足动物分支。
