Porter C A, Sampaio I, Schneider H, Schneider M P, Czelusniak J, Goodman M
Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI 48201.
J Mol Evol. 1995 Jan;40(1):30-55. doi: 10.1007/BF00166594.
Phylogenetic relationships among various primate groups were examined based on sequences of epsilon-globin genes. epsilon-globin genes were sequenced from five species of strepsirhine primates. These sequences were aligned and compared with other known primate epsilon-globin sequences, including data from two additional strepsirhine species, one species of tarsier, 19 species of New World monkeys (representing all extant genera), and five species of catarrhines. In addition, a 2-kb segment upstream of the epsilon-globin gene was sequenced in two of the five strepsirhines examined. This upstream sequence was aligned with five other species of primates for which data are available in this segment. Domestic rabbit and goat were used as outgroups. This analysis supports the monophyly of order Primates but does not support the traditional prosimian grouping of tarsiers, lorisoids, and lemuroids; rather it supports the sister grouping of tarsiers and anthropoids into Haplorhini and the sister grouping of lorisoids and lemuroids into Strepsirhini. The mouse lemur (Microcebus murinus) and dwarf lemur (Cheirogaleus medius) appear to be most closely related to each other, forming a clade with the lemuroids, and are probably not closely related to the lorisoids, as suggested by some morphological studies. Analysis of the epsilon-globin data supports the hypothesis that the aye-aye (Daubentonia madagascariensis) shares a sister-group relationship with other Malagasy strepsirhines (all being classified as lemuroids). Relationships among ceboids agree with findings from a previous epsilon-globin study in which fewer outgroup taxa were employed. Rates of molecular evolution were higher in lorisoids than in lemuroids.
基于ε-珠蛋白基因序列研究了不同灵长类群体之间的系统发育关系。对五种狐猴型灵长类动物的ε-珠蛋白基因进行了测序。将这些序列进行比对，并与其他已知的灵长类ε-珠蛋白序列进行比较，包括另外两种狐猴型物种、一种跗猴物种、19种新大陆猴（代表所有现存属）以及五种狭鼻猴的数据。此外，在所检测的五只狐猴型灵长类动物中的两只中，对ε-珠蛋白基因上游2 kb的片段进行了测序。将该上游序列与该片段有数据的其他五种灵长类物种进行了比对。家兔和山羊用作外类群。该分析支持灵长目动物的单系性，但不支持传统的将跗猴、懒猴型和狐猴型归为原猴亚目的分类；相反，它支持将跗猴和类人猿归为简鼻亚目的姐妹分类，以及将懒猴型和狐猴型归为狐猴亚目的姐妹分类。小鼠狐猴（Microcebus murinus）和倭狐猴（Cheirogaleus medius）似乎彼此关系最为密切，与狐猴型形成一个进化枝，并且可能与懒猴型没有密切关系，一些形态学研究表明了这一点。对ε-珠蛋白数据的分析支持这样的假设，即指猴（Daubentonia madagascariensis）与其他马达加斯加狐猴型灵长类动物（均被归类为狐猴型）具有姐妹群关系。卷尾猴科动物之间的关系与之前一项使用较少外类群分类单元的ε-珠蛋白研究结果一致。懒猴型的分子进化速率高于狐猴型。
