Intersexual arms races - are individuals within marine meta-populations less able to interbreed than assumed?

两性军备竞赛——海洋集合种群中的个体之间的杂交能力是否比想象的要低？

• 批准号: DP0343682
• 负责人: Dr Craig Styan
• 金额: $ 4.1万
• 依托单位: The University of Sydney
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-01-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0343682
• 关键词: Intersexual; arms; races; individuals; within

A meta-population structure is thought to describe the inter-connected nature of many populations of marine animals with dispersive larvae. However, new theory predicts some of these populations might be not very inter-connected at all, despite larval migration. In some circumstances, independent, co-evolutionary arms races between sexes might develop within local populations, resulting in individuals becoming increasingly less able to interbreed freely. I will directly test for this, measuring how successfully broadcast spawners can cross-fertilise across populations. This will reveal the genetic structure of these populations and if these animals really do live in a meta-population.

一个元种群结构被认为是描述了许多种群的海洋动物与分散的幼虫相互连接的性质。然而，新的理论预测，尽管有幼虫迁移，但其中一些种群可能根本没有很好的相互联系。在某些情况下，两性之间独立的、共同进化的军备竞赛可能会在当地人群中发展，导致个体越来越不能自由杂交。我将直接测试这一点，测量如何成功地传播产卵器可以跨种群交叉受精。这将揭示这些种群的遗传结构，以及这些动物是否真的生活在一个元种群中。