No effect of intraspecific relatedness on public goods cooperation in a complex community.

ABSTRACT: Many organisms-notably microbes-are embedded within complex communities where cooperative behaviors in the form of excreted public goods can benefit other species. Under such circumstances, intraspecific interactions are likely to be less important in driving the evolution of cooperation. We first illustrate this idea with a simple theoretical model, showing that relatedness-the extent to which individuals with the same cooperative alleles interact with each other-has a reduced impact on the evolution of cooperation when public goods are shared between species. We test this empirically using strain of Pseudomonas aeruginosa that vary in their production of metal-chelating siderophores in copper contaminated compost (an interspecific public good). We show that nonsiderophore producers grow

SUBMITTER: O'Brien S 

PROVIDER: S-EPMC5969229 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature