Phylogenetic relationships of the New World monkeys (Primates, platyrrhini) based on nuclear G6PD DNA sequences.
Phylogenetic relationships of the New World monkeys (Primates, platyrrhini) based on nuclear G6PD DNA sequences.
复制标题
基于核 G6PD DNA 序列的新世界猴（灵长类、阔鼻猴）的系统发育关系。
DOI：
10.1006/mpev.1998.0582
复制
发表时间：
1999
影响因子：
4.1
通讯作者：
M. Ruvolo
中科院分区：
文献类型：
--
作者：
M. V. Dornum;M. Ruvolo
为了验证新大陆猕猴种群间系统发育关系的假说，收集了24种新大陆猕猴葡萄糖-6-磷酸脱氢酶(G6PD)基因两个内含子的1.3kb DNA序列信息，编码在X染色体上。使用最大简约算法对这些数据进行分析。三个最简约的基因树的严格共识结果表明，支持以下分支：一个包括Callicebus的Pitheciine支系，其中Chiropotes和Cacajao是姐妹分类单元；一个Alouatta-atelin支系，其中Brachyteles是Lagothrix的姐妹分类单元，它是另一个包含Calitrichine的分支的姐妹；以及一个allitrichine/Aotus/Cebus/Saimiri分支。在Callitrichine中，Callimico是Callithrix的姊妹分类单元。Cebus和Saimiri组成了一个支系。这些结果与以前发表的鸭嘴兽系统发育的DNA序列分析基本一致，并为那些早期研究中暂时提出的分类提供了额外的支持。然而，仍有一些问题存在，如Leontopithecus和Saguinus的相对系统发育位置，Aotus/Cebus/Saimiri/allitrichine分支内的分支顺序，以及Pitheciine分支相对于atline和allitrichine的位置。
In order to test hypotheses about the phylogenetic relationships among living genera of New World monkeys, 1.3 kb of DNA sequence information was collected for two introns of the glucose-6-phosphate dehydrogenase (G6PD) locus, encoded on the X chromosome, for 24 species of New World monkeys. These data were analyzed using a maximum parsimony algorithm. The strict consensus of the three most-parsimonious gene trees that result shows support for the following clades: a pitheciine clade including Callicebus within which Chiropotes and Cacajao are sister taxa, an Alouatta-atelin clade within which Brachyteles is the sister taxon of Lagothrix and which is sister to another clade containing the callitrichines, and a callitrichine/Aotus/Cebus/Saimiri clade. Within the callitrichines, Callimico is the sister taxon of Callithrix. Cebus and Saimiri form a clade. These results are broadly consistent with previously published DNA sequence analyses of platyrrhine phylogeny and provide additional support for groupings provisionally proposed in those earlier studies. Nevertheless, questions remain as to the relative phylogenetic placement of Leontopithecus and Saguinus, the branching order within the Aotus/Cebus/Saimiri/callitrichine clade, and the placement of the pitheciine clade relative to the atelines and the callitrichines.