Fig. 4

Polysaccharide utilization potential of Bacteroidetes MAGs revealed by predicted PULs and related key CAZyme genes. A The distribution of predicted PULs in all MAGs. PULs were classified based on their potential substrates. GH or PL families in the bracket represent common genes involved in degrading those glycans. B The distribution of key PULÂ genes in all MAGs. MAGs were grouped by their isolated environments and isolated water layers. BH, bathypelagic and hadal