Genome Resequencing Reveals Rapid, Repeated Evolution in the Colorado Potato Beetle.

ABSTRACT: Insecticide resistance and rapid pest evolution threatens food security and the development of sustainable agricultural practices, yet the evolutionary mechanisms that allow pests to rapidly adapt to control tactics remains unclear. Here, we examine how a global super-pest, the Colorado potato beetle (CPB), Leptinotarsa decemlineata, rapidly evolves resistance to insecticides. Using whole-genome resequencing and transcriptomic data focused on its ancestral and pest range in North America, we assess evidence for three, nonmutually exclusive models of rapid evolution: pervasive selection on novel mutations, rapid regulatory evolution, and repeated selection on standing genetic variation. Population genomic analysis demonstrates that CPB is geographically structured, even among recently estab

SUBMITTER: Pelissie B 

PROVIDER: S-EPMC8826761 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature