Evolution of maternal provisioning in echinoderms: characterisation of egg nutrients and their roles in development

在海洋无脊椎动物复杂的生活史中，母体供给的改变是海洋中发育进化和物种形成之间的联系。 本研究旨在探讨棘皮动物卵的营养特性与其发育模式之间的关系。它使用的Patiriella海星，一个强大的模型来研究进化的祖先型开发人员的鸡蛋成分与小鸡蛋和衍生开发人员表现出多个平行进化的大鸡蛋。 该项目提供了深入了解卵子发生的进化微调及其对幼虫类型和发育位置的影响，这些特征强烈影响海洋无脊椎动物种群的地理分布。

In the complex life histories of marine invertebrates modification of maternal provisioning lies at the nexus between the evolution of development and speciation in the sea. This project investigates the relationship between egg nutritive profile and developmental mode in echinoderms. It uses the Patiriella sea stars, a powerful model to examine evolution of egg constituents in ancestral-type developers with small eggs and derived developers exhibiting multiple parallel evolution of large eggs. This project provides insights into evolutionary fine-tuning of oogenesis and its influence on larval type and location of development, features that strongly influence the biogeography of marine invertebrate populations.