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Phylogenetic relationships of 16S rDNA from cyanobacteria. The tree was constructed using maximum evolution (ME) method with a bootstrap consensus of 1000 replicates. Strains denoted with an asterisk (*) are “Bergey's” reference strains.33 Cyanobacterial strains previously reported to produce cylindrocyclophanes are denoted by a triangle (▲). Only bootstrap values greater than or equal to 75% are displayed.
