Fig. 3From: Diversity and distribution of Wolbachia in relation to geography, host plant affiliation and life cycle of a heterogonic gall waspBayesian phylogenetic tree based on wsp surface protein gene sequences for the three most common Wolbachia strains wTre1, wTre2 and wTre3 from supergroups A and a sample of related Wolbachia sequences from insect taxa obtained from GenBank. We used the rare B-group strain wTre4 as outgroup. Bootstrap values above 50% are shown. The branch between supergroup A and supergroup B was reduced as indicated by double-barsBack to article page