Figure 5. Variables displaying significant changes in abundance across sample groupings.

The bar lengths (y axis) are proportional to the number of variables in a given category (x axis) enriched in each of the tested sample groupings (that is, photic, aphotic, warm and cold) as determined by the Mann–Whitney test (corrected P value <0.05). (a) Enriched MVCs grouped according to the predicted host phylum. (b) Enriched reference viral genomes grouped according to the known host genus. Cyanobacteria refers to viruses that infect Prochlorococcus and Synechococcus. (c) Enriched KOs grouped according to the metabolic pathways to which they belong.