Genetics of range expansion and admixture of Aedes aegypti populations in California.

ABSTRACT:

Background

The mosquito Aedes aegypti, a key vector for arboviruses including dengue, Zika, and chikungunya, was first detected in California in 2013 and has since expanded northward. This study examines the genetic structure of California populations and, based on that structure, proposes potential mechanisms driving their invasion across the state.

Results

A whole-genome analysis of 181 individuals, including 49 newly sequenced from recently established populations in Northern California, corroborates previously described genetic structure and reveals the origins of these populations. Many northern populations shared ancestry with Southern California populations, suggesting passive dispersal. Additionally, we observed significant genetic admixture between divergent cluster

SUBMITTER: Campos M 

PROVIDER: S-EPMC12752053 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature