Transcriptional misexpression in hybrids between species linked by gene flow is associated with patterns of sequence divergence.

ABSTRACT: The extent to which hybridization disrupts a gene's pattern of expression likely governs its propensity for introgression, while its extent of molecular divergence can itself underlie such disruption. Together, these phenomena shape the landscape of sequence and transcriptional divergence across the genome as species diverge. To understand this process, we characterize gene expression inheritance, regulatory divergence, and molecular divergence in the reproductive transcriptomes of species linked by gene flow: the fruit flies Anastrepha fraterculus and A. obliqua, which show evidence of gene flow despite clear evolutionary divergence. We find that their transcriptional patterns are a mosaic between those typically observed within and between allopatric species. Transcripts showing transgre

SUBMITTER: Diaz F 

PROVIDER: S-EPMC10195090 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature