FIG. 2.

Phylogenetic positions of insect-associated AAB among the most representative members of family Acetobacteraceae. The tree shown is based on bacterial 16S rRNA gene sequences. AAB recovered from insects are in bold. Shaded species belong to clusters including environmental AAB, as well as those recovered from insects. Values at nodes are percentages of bootstrap replications calculated from 2,000 replicate trees. Accession numbers of reference sequences are in parentheses. The species used as the outgroup belongs to the Gammaproteobacteria taxon. The scale bar represents 10% sequence divergence.