Fig. 5

Metagenome-assembled genomes (MAGs) and draft genomes (DGs). a Phylogenomic tree of all 2,584 bacterial MAGs and DGs based on protein sequences of 43 universal single-copy genes with circles representing (inside to outside): (i) sample source and origin of the MAGs and DGs (relative proportions), (ii) known and unknown MAGs and DGs within the most abundant bacteria taxa with ≥ 5 genomes [state: unknown MAGs (uMAGs), known MAGs (kMAGs), unknown draft genomes (uDGs), and known draft genomes (kDGs)], (iii) GTDB phylum classification and absolute (redundant) numbers of MAGs and DGs obtained for each phylum, (iv) genome size (the tree was constructed using anvi’o v6.2 and visualized in iTOL v6.5.6). Total number of genomes from each sample: Gelidium: 539; Grateloupia: 609; Saccharina: 151; Ulva: 502; seawater: 469; sediment: 314. b Number of species-level MAGs and DGs that were either unique to or shared by sampled habitats. Vertical bars represent numbers of species shared between the study sets indicated by black dots in the lower panel