The biogeography of kin discrimination across microbial neighbourhoods.

ABSTRACT: The spatial distribution of potential interactants is critical to social evolution in all cooperative organisms. Yet the biogeography of microbial kin discrimination at the scales most relevant to social interactions is poorly understood. Here we resolve the microbiogeography of social identity and genetic relatedness in local populations of the model cooperative bacterium Myxococcus xanthus at small spatial scales, across which the potential for dispersal is high. Using two criteria of relatedness-colony-merger compatibility during cooperative motility and DNA-sequence similarity at highly polymorphic loci-we find that relatedness decreases greatly with spatial distance even across the smallest scale transition. Both social relatedness and genetic relatedness are maximal within individual

SUBMITTER: Kraemer SA 

PROVIDER: S-EPMC5054864 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature