Evolution of physical linkage between loci controlling ecological traits and mating preferences.

ABSTRACT: Coupling of multiple barriers to gene-flow, such as divergent local adaptation and reproductive isolation, facilitates speciation. However, alleles at loci that contribute to barrier effects can be dissociated by recombination. Models of linkage between diverging alleles often consider elements that reduce recombination, such as chromosomal inversions and alleles that modify recombination rate between existing loci. In contrast, here, we consider the evolution of linkage due to the close proximity of loci on the same chromosome. Examples of such physical linkage exist in several species, but in other cases, strong associations are maintained without physical linkage. We use an individual-based model to study the conditions under which the physical linkage between loci controlling ecologica

SUBMITTER: Schuldiner-Harpaz T 

PROVIDER: S-EPMC9827829 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature