Phylogenetic incongruence between cyanobactin synthetase and 16S rRNA gene sequences. Maximum-likelihood trees are based on cyanobactin synthetase sequences and 16S rRNA gene sequences, respectively. The sequences used in the cyanobactin synthetase gene and 16S rRNA data sets were 1,300 bp and 1,400 bp, respectively. Branch lengths are proportional to sequence change. The substitution rates are in different scales in the trees. Minimum-evolution bootstrap values from 1,000 bootstrap replicates are at the nodes if the value is more than 70 and if the nodes were congruent with the nodes of the maximum-likelihood tree. Both of the trees are rooted at the midpoint.