Disotell T R, Honeycutt R L, Ruvolo M
Department of Anthropology, Harvard University, Cambridge, Massachusetts.
Mol Biol Evol. 1992 Jan;9(1):1-13. doi: 10.1093/oxfordjournals.molbev.a040700.
The evolution of the Old World monkey tribe Papionini, composed of macaques, baboons, mandrills, drills, and mangabeys, was examined using mitochondrial DNA (mtDNA) sequence data on the cytochrome oxidase subunit II gene. When analyzed cladistically, these data support a baboon clade of savannah (Papio) plus gelada (Theropithecus) baboons, as well as a clade containing drill (Mandrillus) plus mangabey (Cerocebus) genera. This result stands in opposition to most morphological phylogenies, which break up the baboon clade by placing Papio and Mandrillus as sister taxa and Theropithecus as a more distantly related lineage. Analyses of COII gene sequences also suggest that the papionin ancestral stock divided into two lineages, one leading to macaques and the other to the purely African genera. From a molecular evolutionary perspective, the papionin COII gene sequences reveal a pattern of amino acid replacements concentrated in the regions spanning the mitochondrial membrane.
利用细胞色素氧化酶亚基II基因的线粒体DNA（mtDNA）序列数据，对由猕猴、狒狒、山魈、非洲白鼻猴和白睑猴组成的旧世界猴族狒狒族的进化进行了研究。当进行分支分析时，这些数据支持了一个由草原狒狒（狒狒属）和狮尾狒（狮尾狒属）组成的狒狒分支，以及一个包含非洲白鼻猴（山魈属）和白睑猴（白睑猴属）属的分支。这一结果与大多数形态系统发育学相反，后者通过将狒狒属和山魈属作为姐妹分类单元，将狮尾狒作为关系更远的谱系来打破狒狒分支。对COII基因序列的分析还表明，狒狒族的祖先种群分为两个谱系，一个导致猕猴，另一个导致纯非洲属。从分子进化的角度来看，狒狒族的COII基因序列揭示了一种氨基酸替代模式，集中在线粒体膜跨越的区域。
