Genetic differentiation and intrinsic genomic features explain variation in recombination hotspots among cocoa tree populations.

ABSTRACT:

Background

Recombination plays an important evolutionary role by breaking up haplotypes and shuffling genetic variation. This process impacts the ability of selection to eliminate deleterious mutations or increase the frequency of beneficial mutations in a population. To understand the role of recombination generating and maintaining haplotypic variation in a population, we can construct fine-scale recombination maps. Such maps have been used to study a variety of model organisms and proven to be informative of how selection and demographics shape species-wide variation. Here we present a fine-scale recombination map for ten populations of Theobroma cacao - a non-model, long-lived, woody crop. We use this map to elucidate the dynamics of recombination rates in distinct populations

SUBMITTER: Schwarzkopf EJ 

PROVIDER: S-EPMC7191684 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature