FIGURE 1 in Nodularia (Cyanobacteria, Nostocaceae): a phylogenetically uniform genus with variable phenotypes

FIGURE 1. Bayesian inference (BI) phylogenetic tree inferred from a 79 × 1917 nucleotide alignment (partial 16S rDNA+rbcLX) representing the current GenBank data on heterocytous cyanobacteria and focusing on the genus Nodularia. Branch supports (percent posterior probablity of BI branches, 1000 pseudoreplications for maximum likelihood [ML] and maximum parsimony [MP]) ≥ 50% are provided in the following form: BI/ML/MP. Nodes with 100% support from all methods are marked with an asterisk. In the tree, strains of the genus Nodularia formed a monophyletic cluster, within which four subclusters (I–IV) could be distinguished (as described in the text).