Experimental Evolution of Gene Expression and Plasticity in Alternative Selective Regimes.

ABSTRACT: Little is known of how gene expression and its plasticity evolves as populations adapt to different environmental regimes. Expression is expected to evolve adaptively in all populations but only those populations experiencing environmental heterogeneity are expected to show adaptive evolution of plasticity. We measured the transcriptome in a cadmium-enriched diet and a salt-enriched diet for experimental populations of Drosophila melanogaster that evolved for ~130 generations in one of four selective regimes: two constant regimes maintained in either cadmium or salt diets and two heterogeneous regimes that varied either temporally or spatially between the two diets. For populations evolving in constant regimes, we find a strong signature of counter-gradient evolution; the evolved expressio

SUBMITTER: Huang Y 

PROVIDER: S-EPMC5035091 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature