Figure 2From: Genes involved in arsenic transformation and resistance associated with different levels of arsenic-contaminated soilsPhylogenetic tree of arsenite oxidase (AoxB). Phylogenetic analysis of the deduced amino acid sequences (~160 aa) of aoxB genes. Sequences in this study are in bold type and bootstrap values over 50% are shown. The scale bar 0.05 means 5% aa sequence substitution.Back to article page