The evolution of recombination rates in finite populations during ecological speciation.

ABSTRACT: Recombination can impede ecological speciation with gene flow by mixing locally adapted genotypes with maladapted migrant genotypes from a divergent population. In such a scenario, suppression of recombination can be selectively favoured. However, in finite populations evolving under the influence of random genetic drift, recombination can also facilitate adaptation by reducing Hill-Robertson interference between loci under selection. In this case, increased recombination rates can be favoured. Although these two major effects on recombination have been studied individually, their joint effect on ecological speciation with gene flow remains unexplored. Using a mathematical model, we investigated the evolution of recombination rates in two finite populations that exchange migrants while ada

SUBMITTER: Reeve J 

PROVIDER: S-EPMC5095376 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature