Population genomics of Drosophila suzukii reveal longitudinal population structure and signals of migrations in and out of the continental United States.

ABSTRACT: Drosophila suzukii, or spotted-wing drosophila, is now an established pest in many parts of the world, causing significant damage to numerous fruit crop industries. Native to East Asia, D. suzukii infestations started in the United States a decade ago, occupying a wide range of climates. To better understand invasion ecology of this pest, knowledge of past migration events, population structure, and genetic diversity is needed. In this study, we sequenced whole genomes of 237 individual flies collected across the continental United States, as well as several sites in Europe, Brazil, and Asia, to identify and analyze hundreds of thousands of genetic markers. We observed strong population structure between Western and Eastern US populations, but no evidence of any population structure betwee

SUBMITTER: Lewald KM 

PROVIDER: S-EPMC8664444 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature