φKZ-like viruses, a proposed new genus of myovirus bacteriophages

The proposed phi KZ genus of myoviruses has 21 members. Phages are virulent, lyse Pseudomonas bacteria, and are characterized by very large heads and correspondingly high DNA contents. The genome of the type virus, phi KZ, has 306 ORFs and over 280 kbp and is the second-largest phage genome known. The phi KZ genus has very few relationships to other phages and includes three species and one possible species.