Eutherian phylogeny as inferred from mitochondrial DNA sequence data.
Eutherian phylogeny as inferred from mitochondrial DNA sequence data.
复制标题
从线粒体 DNA 序列数据推断的真兽系统发育。
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
M. Hasegawa
中科院分区：
文献类型：
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作者：
Ying Cao;J. Adachi;M. Hasegawa
灵长类动物，偶蹄目，鲸类，食肉目，啮齿目之间的系统发育关系估计从线粒体基因组编码的蛋白质的氨基酸序列，其中整个核苷酸序列数据是可用的，使用有袋目，鸟类，两栖类作为外类群。整体证据的最大似然，以及最大简约性，分析强烈表明，啮齿目是一个外群的其他四个真兽目，鲸类和偶蹄目形成一个分支与食肉目作为一个姐妹类群，与以前的作者的分子系统发育研究一致。然而，对单个蛋白质的分析不一定符合这一结论，并且一些蛋白质以接近5%的显著性拒绝了pupper-correct树。此外，12 S线粒体核糖体RNA序列不给pupelis正确的树，无论比对和系统发育的方法，虽然树没有被拒绝的统计学意义。当使用ML方法时，16 S核糖体RNA序列与我们的序列比对给出了正确的树，但结果取决于比对和外群物种的选择。这些结果说明了核糖体RNA数据在系统发育推断中的局限性，并建议我们必须分析尽可能多的基因并综合结果以得出可靠的结论。
The phylogenetic relationships among Primates, Artiodactyla, Cetacea, Carnivora, and Rodentia were estimated from the amino acid sequences of proteins encoded by the mitochondrial genomes, for which entire nucleotide sequence data are available, using Marsupialia, Aves, and Amphibia as outgroups. The overall evidence of the maximum likelihood, as well as maximum parsimony, analyses strongly suggests that Rodentia is an outgroup to the other four eutherian orders, and that Cetacea and Artiodactyla form a clade with Carnivora as a sister taxon, consistently with the molecular phylogenetic studies of previous authors. However, analyses of individual proteins do not necessarily conform to this conclusion, and some of the proteins reject the putatively correct tree with nearly 5% significance. Furthermore, the 12S mitochondrial ribosomal RNA sequences do not give the putatively correct tree irrespective of the alignments and of the phylogenetic methods, although the tree is not rejected with a statistical significance. The 16S ribosomal RNA sequences give the putatively correct tree with our sequence alignment when the ML method is used, but the result depends on the alignment and on the choice of outgroup species. These results illustrate the limitation of the ribosomal RNA data alone in phylogenetic inference, and suggest that we must analyze as many genes as possible and synthesize the results to draw a reliable conclusion.
影响因子：
1.5
作者：
LEIPE, DD;GUNDERSON, JH;SOGIN, ML
通讯作者：
SOGIN, ML