Infection percentages and the relatedness values in F. cinerea populations. The percentage of individuals infected by different endosymbionts are shown as segments in pie diagrams where the dotted areas represent Candidatus Serratia symbiotica, horizontal lines Wolbachia, black areas Cardinium and the white areas uninfected individuals. The relatedness values and the total number of individuals are shown for each population. The segments of the diagrams do not properly take into account the few individuals that were multiply infected. The scale of the map is proportional.