High promiscuity among females of the invasive pest species Drosophila suzukii

Drosophila suzukii (Matsumura, 1931), the spotted-wing drosophila, is a highly invasive fruit fly that spread from Southern Asia across most regions of Asia, and in the last fifteen years has invaded Europe and the Americas. It is an economically important pest of small fruits such as berries and stone fruits. Drosophila suzukii speciated by adapting to cooler, mountainous and forest environments. In temperate regions, it evolved seasonal polyphenism traits which enhanced its survival during stressful winter population bottlenecks. Consequently, in these temperate regions, the populations undergo seasonal reproductive dynamics. Despite its economic importance, no data are available on the behavioural reproductive strategies of this fly. The presence of polyandry, for example, has not been determined despite the important role it might play in the reproductive dynamics of the populations.
We explored the presence of polyandry in an established population in Trentino, a region in North It..., Multilocus genotyping was performed using four dinucleotide repeat microsatellite loci: DS05, DS09, DS15 and DS22 chosen from the previously characterized SSR sequences (Fraimount et al., 2015). Genotypes were determined for each mother and her progeny., Simple text editor or Microsoft Excel., # *Drosophila suzukii* mother and progeny genotype data

The genotypes of 12 *Drosophila suzukii* mothers and their progenies are provided at 4 SSR loci.

## Description of the data and file structure

The first column contains each mother's indicator code (U3 etc.) followed by her progeny (U3-1..U3-20).
The second and third columns contain the two SSR alleles present at the first SSR locus (Ds05)
The fourth and fifth columns contain the two SSR alleles present at the second SSR locus (Ds09)
The sixth and seventh columns contain the two SSR alleles present at the third SSR locus (Ds15)
The eighth and ninth columns contain the two SSR alleles present at the fourth SSR locus (Ds22)