The Evolution of Locally Adaptive Chromosome Inversions in Mimulus guttatus.

ABSTRACT: Chromosomal inversion polymorphisms are ubiquitous across the diversity of diploid organisms and play a significant role in the evolution of adaptations in those species. Inversions are thought to operate as supergenes by trapping adaptive alleles at multiple linked loci through the suppression of recombination. While there is now considerable support for the supergene mechanism of inversion evolution, the extent to which inversions trap pre-existing adaptive genetic variation versus accumulate new adaptive variants over time remains unclear. In this study, we report new insights into the evolution of a locally adaptive chromosomal inversion polymorphism (inv_chr8A), which contributes to the adaptive divergence between coastal perennial and inland annual ecotypes of the yellow monkeyflower

SUBMITTER: Kollar LM 

PROVIDER: S-EPMC12530288 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature