Drosophila suzukii oxidative stress response involves Jheh gene cluster but not transposable elements

The study of the mechanisms involved in adaptation remains a timely issue, particularly in the context of global changes. To better understand these mechanisms of rapid adaptation, invasive species are a good model because they are subjected to new and/or different environmental factors. Using different lines of different geographical origin of the invasive pest Drosophila suzukii, we characterized the phenotypic response to oxidative stress. Subsequently, we tested the involvement of the Jheh gene cluster in this response and the possible role of transposable elements. We show that the resistance to oxidative stress of the lines appears to be related to their invasive status and we confirm the role of the Jheh gene cluster in this response. We have not identified any transposable elements in this gene region that could influence the expression of the gene. Summary statementThe responses to oxidative stress of the invasive species, Drosophila suzukii, show variability between genotypes related to their invasion status. The genes of the juvenile hormone epoxide hydrolase cluster are involved in this response.