Figure 1:

A: Phylogenetic placement of newly discovered megaphages. Phylogenetic reconstruction was based on an alignment of large terminase subunit encoding genes from this study (n=6) and those from a reference study (n=1,256, [16]). Stars indicate the clades in which megaphages identified in this study were placed [16]. B: Placement of four newly discovered megaphages in a clade specific to huge phages. References phages in this clade include some of the largest phages identified from a previous study [16]. The sizes of reference phage genomes are indicated if they are ≥600 kbp.