Our study revealed important aspects of the genetic architecture of differentiation in the early stages of divergence and allowed the identification of genomic regions that resist introgression and are likely to confer reproductive barriers in natural conditions. (journals.plos.org)
«One way to study how speciation occurs is to look for examples where partial reproductive barriers exist but where genes are still exchanged.» (sciencedaily.com)
Evidence for mito - nuclear and sex - linked reproductive barriers between the hybrid Italian sparrow and its parent species. (sciencenews.org)