Figure 2.

Comparisons of cyanomyovirus gene reads detected in three different ocean environments. Circles indicate equally represented phage genes and purple outlined squares represent genes that are statistically differentially represented in one of the two environments being compared. Signature core genes are red, genes with abundances similar to signature core genes in all three environments (‘metagenome-shared core') are pink. Six phage/host shared genes of particular interest are labeled: phoA and pstS (green) are phosphate-associated, psbA (yellow) is a photosystem gene, additional HOT-overrepresented genes in the neighborhood of psbA, a heme oxygenase and a gene of unknown function, are also colored yellow, gnd and zwf (orange) are PPP genes and gcvP is the glycine cleavage system P-protein. Tables 5, 6, 7 include detailed information for each overrepresented gene.