Bayesian inference tree derived from partial DNA sequences of the mitochondrial 16S r RNA gene. Numbers before slashes indicate Bayesian posterior probabilities (displayed >0.60 values), and numbers after slashes are ultrafast bootstrap support for maximum likelihood (2000 replicates) analyses (>60 retained). The symbol “–” represents value below 0.60/60. The scale bar represents 0.05 nucleotide substitutions per site.