Bacterial communities isolated from different populations of Drosophila suzukii Raw sequence reads

The spotted wing drosophila, Drosophila suzukii (Diptera, Drosophilidae) is a highly polyphagous pest of a wide variety of wild or cultivated berry and stone fruit. Originating from Southeast Asia it has recently invaded a wide range of regions in Europe and North-America. In this study, we present the first in-depth characterization of gut bacterial diversity from field (native and invasive range) and lab-reared populations of this insect. The gut bacterial communities of field insects were dominated by two families of the phylum Proteobacteria: Acetobacteraceae and Enterobacteriaceae, while Firmicutes, mainly represented by the family Staphylococcaceae, prevailed in lab reared population. Locality resulted the most significant factor in shaping the microbiota of wild flies. Moreover, a negative correlation between diversity and abundance of Enterobacteriaceae and the time elapsed since the establishment of D. suzukii in a new region was observed.