Figure 7

FeSOD protein phylogeny. Phylogeny of Symbiodinium FeSOD sequences and those of other taxa, inferred from ML analysis (WAG + I + G model, 139 aa alignment length); rooted (a) and unrooted (b) trees. Scale bars indicate the number of amino acid substitutions, and bootstrap percentages >70% are indicated on nodes. The locations of specific sequences in the unrooted tree are indicated by coloured circles. Colouring of branches refers to lineages containing Symbiodinium (red), dinoflagellates (purple), chlorophytes and higher plants (bright green), and other alveolates (orange, including the heterokont Ectocarpus siliculosus).