PYI: Development of an Integrated Developmental and Evolutionary Model for a Marine Organism

Emlet博士在南加州大学工作， 将解决如何发展和自然 选择在进化过程中相互作用。 他计划创建 第一个综合发展和进化模型， 海洋生物，这可以提供为什么一些 生物已经多样化，而其他生物则没有， 环境变化如何影响短期和长期变化 有机体 利用海胆物种作为模式生物和技术 他从化石中推断出幼虫的发育方式 海胆，埃姆莱特博士将确定，如果地点和时间， 一种特殊的幼虫进食方式 环境条件，预计选择这一点 发展的类型。 他还将分析变化的功能后果， 幼虫纤毛的形态和模式对游泳性能的影响。 这项实验工作将首次确定 从数量上看， 在进化过程中被改变的过程， 发展模式。 结合历史和功能的方法可以显示如何和 当自然选择通过环境变化或 控制发育的功能形态要求 模式. 历史分析也可能表明， 发展模式影响进化的成功，衡量 多样化率。

Dr. Emlet, working at the University of Southern California, will address the question of how development and natural selection interact during evolution. He plans to create the first integrated developmental and evolutionary model for a marine organism, which could provide insights into why some organisms have diversified while others have not, as well as how environmental changes effect short and long term changes in organisms. Using a sea urchin species as a model organism and techniques he developed to infer mode of larval development in fossil urchins, Dr. Emlet will determine if the places and times that a particular type of larval feeding evolved correspond with environmental conditions that are expected to select for this type of development. He will also analyze the functional consequences of changes in shape and patterns of larval ciliation on swimming performance. This experimental work will be the first to determine quantitatively the functional requirements for developmental processes which are modified during evolutionary changes in mode of development. Combining historical and functional approaches may show how and when natural selection acts through environmental change or functional morphological requirements to control developmental patterns. Historical analyses may also show whether developmental patterns influence evolutionary success, measured as diversification rate.