Fig. 5

The ancestral state reconstructions indicating the replacements of dominant bacteria in the evolutionary history. The ancestral state reconstructions are carried out using Mesquite with the parsimony method. The dominant symbiotic bacteria families (a) or genera (b) are displayed as a character in this analysis. The phylogenetic relationships of researched true bugs are shown by the circle map. The color lines in the phylogenetic tree stand for the dominant symbiotic bacteria at the family or genus level of true bugs. The symbiotic bacteria families or genera that were only detected in one sample were classified as others