Evolution of assortative mating following selective introgression of pigmentation genes between two Drosophila species.

ABSTRACT: Adaptive introgression is ubiquitous in animals, but experimental support for its role in driving speciation remains scarce. In the absence of conscious selection, admixed laboratory strains of Drosophila asymmetrically and progressively lose alleles from one parental species and reproductive isolation against the predominant parent ceases after 10 generations. Here, we selectively introgressed during 1 year light pigmentation genes of D. santomea into the genome of its dark sibling D. yakuba, and vice versa. We found that the pace of phenotypic change differed between the species and the sexes and identified through genome sequencing common as well as distinct introgressed loci in each species. Mating assays showed that assortative mating between introgr

SUBMITTER: David JR 

PROVIDER: S-EPMC9006235 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature