Dissertation Research: The Evolution and Importance of Genetic Constraint in Anolis Cristatellus

论文研究：Anolis Cristatellus 的进化和遗传约束的重要性

• 批准号: 0722485
• 负责人: Jonathan Losos
• 金额: $ 0.16万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-10-01 至 2008-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0722485&HistoricalAwards=false
• 关键词: Dissertation; Research; Evolution; Importance; Genetic

Genetic constraints determine how a population can respond to multivariate natural selection. This study investigates the origin and evolutionary significance of genetic constraint using a neotropical lizard, Anolis cristatellus, as a model species. Through breeding experiments, this study will measure the strength and pattern of genetic constraint. Through field natural selection study, this project will discern the adaptive origin of genetic correlations among traits. Finally, using field collections and morphological measurements, this study will evaluate the evolutionary importance of constraint in diversification.Lizards in the genus Anolis have become a model system for the study of evolutionary ecology and adaptive radiation. This project investigates a yet unstudied aspect of the evolutionary diversification of Anolis in the Caribbean. The training of a graduate student is directly supported by this project, and several undergraduates belonging to an under-represented group in science will receive training as a consequence of this study. Preliminary work has been presented in an invited seminar to biology faculty and students at the Universidad de Puerto Rico, and will be presented at the American Society of Ichthyologists and Herpetologists meeting this summer. Computer programs written for data analysis are being made available on the world wide web.

遗传约束决定了一个种群如何应对多元自然选择。本研究以新热带区的冠蜥为模式种，探讨了遗传约束的起源和进化意义。通过育种试验，测定遗传约束的强度和方式。通过野外自然选择研究，该项目将辨别性状之间遗传相关性的适应起源。最后，通过野外采集和形态学测量，本研究将评估限制在多样性进化中的重要性。Anolis属的落叶松已经成为进化生态学和适应辐射研究的模式系统。本项目调查了加勒比地区阿诺利斯进化多样化的一个尚未研究的方面。该项目直接支持研究生的培训，属于科学领域代表性不足群体的几名本科生将接受本研究的培训。初步工作已经在波多黎各的生物学教师和学生的特邀研讨会上介绍，并将在今年夏天的美国鱼类学家和爬虫学家协会会议上介绍。为数据分析编写的计算机程序正在万维网上提供。