Mimicry diversification in Papilio dardanus via a genomic inversion in the regulatory region of engrailed-invected.

ABSTRACT: Polymorphic Batesian mimics exhibit multiple protective morphs that each mimic a different noxious model. Here, we study the genomic transitions leading to the evolution of different mimetic wing patterns in the polymorphic Mocker Swallowtail Papilio dardanus. We generated a draft genome (231 Mb over 30 chromosomes) and re-sequenced individuals of three morphs. Genome-wide single nucleotide polymorphism (SNP) analysis revealed elevated linkage disequilibrium and divergence between morphs in the regulatory region of engrailed, a developmental gene previously implicated in the mimicry switch. The diverged region exhibits a discrete chromosomal inversion (of 40 kb) relative to the ancestral orientation that is associated with the cenea morph, but not with the botto

SUBMITTER: Timmermans MJTN 

PROVIDER: S-EPMC7282906 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature