FIG. 2.

Phylogenetic consensus tree based on parsimony analysis of 16S rRNA gene sequences of BBD cyanobacteria and other cyanobacteria. The tree is based on sequences of 300 to 600 bp in length. These represent a total of 31 clones from six colonies of D. strigosa, 8 clones from two colonies of M. cavernosa, and 8 clones from one colony of M. annularis. The numbers at the nodes are the bootstrap values based on a total of 10,000 replicate resamplings. GenBank accession numbers are included. The underlined strains represent marine Phormidium spp.