Genetic and epigenetic mechanisms of rapid host adaptation in the aphid parasitoid Aphidius ervi

蚜虫寄生蜂Aphidius ervi快速宿主适应的遗传和表观遗传机制

• 批准号: 403980864
• 负责人: Professor Dr. Jürgen Gadau
• 金额: --
• 依托单位: Institut für Evolution und Biodiversität (IEB)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/403980864?language=en
• 关键词: Genetic; epigenetic; mechanisms; rapid; host

The basic evolutionary question addressed by the proposed research is how parasites rapid adaptations to a single host species can evolve in parasitic species. We aim to use the parasitoid wasp Aphidius ervi as a model to understand the molecular mechanisms conferring specialization. In particular, we are interested what role phenotypic plasticity and genetic selection play during this process and whether these two mechanisms interact. For this, we will conduct artificial evolution experiments, where parasites will be forced to either use the same host over at least twenty generations or switch hosts regularly.

拟议研究解决的基本进化问题是寄生虫如何在寄生物种中进化出对单一宿主物种的快速适应。我们的目标是使用寄生蜂 Aphidius ervi 作为模型来了解赋予专业化的分子机制。我们特别感兴趣的是表型可塑性和遗传选择在此过程中发挥什么作用以及这两种机制是否相互作用。为此，我们将进行人工进化实验，寄生虫将被迫要么使用同一宿主至少二十代，要么定期更换宿主。