Assessing when chromosomal rearrangements affect the dynamics of speciation: implications from computer simulations.

ABSTRACT: Many hypotheses have been put forth to explain the origin and spread of inversions, and their significance for speciation. Several recent genic models have proposed that inversions promote speciation with gene flow due to the adaptive significance of the genes contained within them and because of the effects inversions have on suppressing recombination. However, the consequences of inversions for the dynamics of genome wide divergence across the speciation continuum remain unclear, an issue we examine here. We review a framework for the genomics of speciation involving the congealing of the genome into alternate adaptive states representing species ("genome wide congealing"). We then place inversions in this context as examples of how genetic hitchhiking can potentially hasten genome wide

SUBMITTER: Feder JL 

PROVIDER: S-EPMC4144205 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature