title: The mode of host-parasite interaction shapes coevolutionary dynamics and the fate of host cooperation.
abstract: 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.
authors: Department of Zoology, University of Oxford, Oxford OX1 3PS, UK.
authors: Benjamin J Z
authors: BJ
authors: Quigley
authors: Diana
authors: D
authors: García López
authors: Angus
authors: A
authors: Buckling
authors: Alan J
authors: AJ
authors: McKane
authors: Sam P
authors: SP
authors: Brown
mesh_terms: D001419:Bacteria / Q000235:genetics / Q000254:growth & development* / Q000821:virology*; D001435:Bacteriophages / Q000235:genetics / Q000502:physiology*; D005075:Biological Evolution; D054884:Host-Pathogen Interactions; D056265:Microbial Interactions; D008954:Models, Biological; D012641:Selection, Genetic; D013269:Stochastic Processes