Evolution in changing environments: modifiers of mutation, recombination, and migration.

ABSTRACT: The production and maintenance of genetic and phenotypic diversity under temporally fluctuating selection and the signatures of environmental changes in the patterns of this variation have been important areas of focus in population genetics. On one hand, periods of constant selection pull the genetic makeup of populations toward local fitness optima. On the other, to cope with changes in the selection regime, populations may evolve mechanisms that create a diversity of genotypes. By tuning the rates at which variability is produced--such as the rates of recombination, mutation, or migration--populations may increase their long-term adaptability. Here we use theoretical models to gain insight into how the rates of these three evolutionary forces are shaped by fluctuating selection. We comp

SUBMITTER: Carja O 

PROVIDER: S-EPMC4273399 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature