标题： 宿主-寄生虫相互作用的模式塑造协同进化动态和宿主合作的命运 显示英文标题

标题： The mode of host-parasite interaction shapes coevolutionary dynamics and the fate of host cooperation

摘要： 寄主和寄生者之间的对抗性共同进化可能对寄主种群结构产生重大影响，从而影响社会特征的进化。 使用随机建模技术，在细菌-病毒相互作用的背景下，我们研究了共同进化在寄主-寄生者遗传特异性连续体（特别是基因型具有相同的感染/抗性范围（匹配等位基因，MA）到高度可变的范围（基因对基因，GFG））对种群遗传结构以及寄主社会行为的影响。 我们发现，在连续体的MA一端，寄主合作更有可能被维持，因为与MA类似相互作用相关的更频繁的瓶颈可以阻止背叛者的入侵，甚至可以让迁移的合作者入侵背叛者种群。 显示英文摘要

摘要： Antagonistic coevolution between hosts and parasites can have a major impact on host population structures, and hence on the evolution of social traits. Using stochastic modelling techniques in the context of bacteria-virus interactions, we investigate the impact of coevolution across a continuum of host-parasite genetic specificity (specifically, where genotypes have the same infectivity/resistance ranges (matching alleles, MA) to highly variable ranges (gene-for-gene, GFG)) on population genetic structure, and on the social behaviour of the host. We find that host cooperation is more likely to be maintained towards the MA end of the continuum, as the more frequent bottlenecks associated with an MA-like interaction can prevent defector invasion, and can even allow migrant cooperators to invade populations of defectors.