Dissertation Research: Molecular Systematics of the Genus Presbytis

论文研究：长叶草属的分子系统学

基本信息

批准号：
9812726
负责人：
Don Melnick
金额：
$ 1.01万
依托单位：
Columbia University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1999
资助国家：
美国
起止时间：
1999-05-15 至 2001-04-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9812726&HistoricalAwards=false
关键词：
Dissertation Research Molecular Systematics Genus

项目摘要

Recently, what was once considered one highly variable genus of "leaf-eating" or colobine monkeys in Asia, known as Presbytis, was subdivided into three genera on the basis of different sets of shared anatomical features. The separation of these three genera, Presbytis, Trachypithecus, and Semnopithecus, are now widely accepted by the primatology community. However, questions remain as to (1) whether they are "good" genera, that is each contains a series of species all derived from a common ancestor that is separate from the common ancestors of the other related genera, and (2) what the relationships are among the species within each newly defined genus. The proposed research attempts to answer these questions for one of the new genera, Presbytis. Biological samples will be collected from a number of populations of each of the seven species in this genus. Nuclear and mitochondrial DNA will be isolated from these samples and surveyed for variation. This variation will be used to assess (1) whether each Presbytis species is indeed one species, (2) whether the Presbytis genus is indeed one genus, (3) the relationship of the Presbytis species to one another, and (4) the relationship of the Presbytis genus to the other Asian Leaf-monkey genera. Answers to all of these questions will give us insight into the evolutionary history of this very diverse group of primates, and the differential ability of variation in the nuclear and mitochondrial DNA to shed light on that history. Secondarily, it will also give us information that can be used to conserve these highly endangered mammals.

最近，根据不同共享解剖学特征，曾经被认为是亚洲“叶饮食”或色虫猴子的一个高度可变的属，被称为Presbytis。这三个属的分离，长老会，trachypithecus和semnopithecus现在已被原始学界广泛接受。但是，关于（1）它们是否是“良好”属的问题，每个属都包含一系列来自共同祖先的物种，这些物种与其他相关属的共同祖先分开，以及（2）每个新定义属的物种之间的关系是什么。拟议的研究试图为新属的长老会回答这些问题。将从该属中七个物种的每个种群中收集生物样品。将从这些样品中分离出核和线粒体DNA并进行调查以进行变化。这种变化将用于评估（1）每种长老会是否确实是一种物种，（2）长老会属是否确实是一种属，（3）长叶虫物种相互之间的关系，以及（4）长老会属与其他亚洲叶子般的属的关系。对所有这些问题的答案将使我们深入了解这一非常多样化的灵长类动物的进化历史，以及核和线粒体DNA变异能力的不同能力揭示了该历史。其次，它还将为我们提供可用于保护这些濒临灭绝的哺乳动物的信息。