Evolution of Specificity in Insect/Plant Interactions: The Relationship of Oviposition Preference and Larval Performance

昆虫/植物相互作用特异性的演变：产卵偏好与幼虫性能的关系

• 批准号: 8705394
• 负责人: John Thompson
• 金额: --
• 依托单位: Washington State University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-10-15 至 1991-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8705394&HistoricalAwards=false
• 关键词: Evolution; Specificity; Insect; Plant; Interactions

Thisresearch concerns the relationship between oviposition preference and larval performance in closely-related butterfly species of Papilio (Lepidoptera) that differ in the plant families on which they feed. The study will take advantage of the recent finding that oviposition preference in P. oregonius is controlled partly by loci on the X chromosome. This finding provides for the first time the opportunity to ask some fundamental questions on how oviposition preference and larval performance are genetically related in the evolution of host associations in insect/plant interactions. Section I of the study tests whether larval performance on different plant species is controlled, partly or solely, by loci on the X chromosome as is oviposition preference in these species. Section II then analyzes whether there is variation among isofemale lines within population in larval performance on different plant species as there is for host selection in ovipositing females in these species. Finally, section III considers how variation in larval performance correlates with variation in oviposition preference with respect to inheritance through the X chromosome. Together, the results from these three sections will aid in the development of the theory of insect/plant interactions and the evolutionary ecology of host association by addressing the fundamental problem of the relationship between oviposition preference and larval performance on different hosts.

这项研究涉及凤蝶（鳞翅目）密切相关的蝴蝶物种的产卵偏好与幼虫表现之间的关系，这些蝴蝶物种的食物种类不同。该研究将利用最近的发现，即 P. oregonius 的产卵偏好部分由 X 染色体上的基因座控制。这一发现首次提供了提出一些基本问题的机会，即产卵偏好和幼虫性能在昆虫/植物相互作用的宿主关联进化中如何在遗传上相关。该研究的第一部分测试了幼虫在不同植物物种上的表现是否部分或完全由 X 染色体上的基因座控制，就像这些物种的产卵偏好一样。第二部分然后分析种群内的同雌性品系之间在不同植物物种上的幼虫表现是否存在差异，因为这些物种中产卵雌性的宿主选择存在差异。最后，第三部分考虑了幼虫性能的变化如何与通过 X 染色体遗传的产卵偏好的变化相关。总之，这三个部分的结果将通过解决不同寄主上的产卵偏好和幼虫表现之间关系的基本问题，有助于昆虫/植物相互作用理论和寄主关联的进化生态学的发展。