Figure 1. Taxonomic classification of sequences on individual blades of Porphyra umbilicalis (% abundance normalized to the number of sequences in each sample) using sequences recovered from both V8 and V5V6 libraries.

Color codes are grey for absence in all blades; white for absence when the taxon was recovered in at least one blade (n = 12), light pink = >0 to 1%; orange  = >1% to 10%; red  = >10% to 50%; and dark red  = >50%. These categories make it possible to compare blades across libraries, but strictly the colors apply only vertically within each sample. The taxonomic level refers to phylum (2), class (3), order (4), family (5) and genus (6) here and in the supplemental tables.