Fig. 2From: Diversity of arsenite oxidase gene and arsenotrophic bacteria in arsenic affected Bangladesh soilsPhylogenetic tree of arsenite oxidase amino acid sequences (bold) obtained from the arsenite oxidase (aioA) clone library of arsenic affected soil W2. The tree was calculated from deduced amino acid sequences aligned in program ClaustalX and was generated in program MEGA 5 using the neighbour-joining algorithm. Bootstrap value (n = 1000 replicates)Back to article page