Figure 1.

Metagenome data set classification and metadata characterization. (i) Metagenome data sets are submitted for annotation and inclusion into IMG/M ER via the IMG/ER and IMG/M ER submission site. (ii) Metagenome data sets in IMG/M are organized using a hierarchical classification similar to the phylogenetic classification of isolate genomes. (iii) Metagenome data sets submitted for inclusion into IMG/M ER are associated with metadata characterizing the metagenome study, the associated metagenome sequencing project, environmental information, as well as (iv) sample and sequencing information.