Relative abundances of cyanopodovirus (A), cyanomyovirus (B), and picocyanobacterial (C) genotypes in different types of habitats. It is noteworthy that the GOS reef samples were mainly collected from reefs located in open oceans. Abbreviations: Pro-podo and Pro-myo (gray line charts in panels A and B), the fractions of reads that were recruited to the genomes of cyanopodoviruses or cyanomyoviruses that were originally isolated on Prochlorococcus; HL, high-light-adapted Prochlorococcus clade; LL, low-light-adapted Prochlorococcus clade; sub5.1, sub5.2, and sub5.3, marine Synechococcus subclusters 5.1, 5.2, and 5.3; BP, BroadPhage; MV, MarineVirome.