Molecular Evolution and Systematics of Marmosets (Primates: Callithrix)

狨猴的分子进化和系统学（灵长类动物：Callithrix）

• 批准号: 9511194
• 负责人: David Woodruff
• 金额: $ 13.4万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-07-15 至 1997-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9511194&HistoricalAwards=false
• 关键词: Molecular; Evolution; Systematics; Marmosets; Primates

Despite a wealth of laboratory data collected on one species of marmosets, the taxonomy of this groups remains highly controversial. Current opinion varies widely on the species diversity within this genus, Callithrix, with between three and fifteen species being recognized by different scientists, and there are many uncertainties about phylogenetic relationships. The major goal of this project is the preparation of a comparable molecular genetic phylogeny of Callithrix, based on DNA sequence variation at both mitochondrial and nuclear loci, using hair samples obtained non-invasively. This phylogeny should resolve many issues in Callithrix systematics, including evolutionary relationships, status of possible hybrids, and the delineation of species and subspecies. Finally, information relevant to broader evolutionary issues will be obtained, including the tempo of evolutionary differentiation in different environments (Atlantic forest vs. Amazonia), and a potential example of orthogenesis, the theory of metachromism.

尽管收集了有关一种狨猴的大量实验室数据，但该类群的分类仍然存在很大争议。 目前对于 Callithrix 属的物种多样性存在很大分歧，不同的科学家认可了 3 到 15 个物种，并且系统发育关系存在许多不确定性。 该项目的主要目标是使用非侵入性获得的毛发样本，基于线粒体和核位点的 DNA 序列变异，准备 Callithrix 的可比分子遗传系统发育。 这种系统发育应该可以解决 Callithrix 系统学中的许多问题，包括进化关系、可能杂交的状态以及物种和亚种的划分。 最后，将获得与更广泛的进化问题相关的信息，包括不同环境中进化分化的速度（大西洋森林与亚马逊流域），以及正交发生的一个潜在例子，异色性理论。