FIG. 2.

The Phage Proteomic Tree was constructed from 105 completely sequenced phage genomes. The tree was generated from length-corrected protein distance scores with a penalty of 10 for missing proteins as described in the text. Each phage genome is colored according to its ICTV classification as shown in the key. To make the figure easier to read, the large group of siphophage has been manually shifted away from the other phage groups. The dotted line indicates where the two groups would connect.