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KatG protein phylogeny. Protein phylogeny as rooted (a) and unrooted (b) trees based on ML analysis (WAG + I + G model, 328 aa alignment length). Colouring of branches refers to lineages containing Symbiodinium (red), dinoflagellates (purple), bacteria (blue), bacillariophyceans (moss green), chlorophytes (green), and heterokont oomycetes (orange).
