Sex ratio produced by Arsenophonus infected vs uninfected Nasonia vitripennis from the UK and Switzerland

Mated Individual Female N. vitripennis that emerged from field collected pupae were allowed to oviposit in Sarcophaga pupae. Female N. vitripennis were then categorised as carrying or not carrying Arsenophonus nasoniae by PCR assay. Emerging progeny were scored for sex. In this analysis, individuals producing no female offspring were discounted, as this is commonly the result of failure of the female wasp to mate and fertilize eggs.

Column A: Female ID

Column B: Source population (UK or Switzerland)

Column C: Results of PCR assay for A. nasoniae (+ = present, - = absent).

Column D: #Female wasp progeny emerging

Column E: #Male wasp progeny emerging

Column F: Proportion of progeny that were female (Column D/(Column D + Column E))