Can the genomics of ecological speciation be predicted across the divergence continuum from host races to species? A case study in Rhagoletis.

ABSTRACT: Studies assessing the predictability of evolution typically focus on short-term adaptation within populations or the repeatability of change among lineages. A missing consideration in speciation research is to determine whether natural selection predictably transforms standing genetic variation within populations into differences between species. Here, we test whether and how host-related selection on diapause timing associates with genome-wide differentiation during ecological speciation by comparing ancestral hawthorn and newly formed apple-infesting host races of Rhagoletis pomonella to their sibling species Rhagoletis mendax that attacks blueberries. The associations of 57 857 single nucleotide polymorphisms in a diapause genome-wide-association study (GWAS) on the hawtho

SUBMITTER: Meyers PJ 

PROVIDER: S-EPMC7423278 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature