Conservation of social effects (Ψ) between two species of Drosophila despite reversal of sexual dimorphism.

ABSTRACT: Indirect genetic effects (IGEs) describe the effect of the genes of social partners on the phenotype of a focal individual. Here, we measure indirect genetic effects using the "coefficient of interaction" (Ψ) to test whether Ψ evolved between Drosophila melanogaster and D. simulans. We compare Ψ for locomotion between ethanol and nonethanol environments in both species, but only D. melanogaster utilizes ethanol ecologically. We find that while sexual dimorphism for locomotion has been reversed in D. simulans, there has been no evolution of social effects between these two species. What did evolve was the interaction between genotype-specific Ψ and the environment, as D. melanogaster varies unpredictably between environments and D. simulans does not

SUBMITTER: Signor SA 

PROVIDER: S-EPMC5723616 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature