Restriction endonuclease and genetic mapping studies indicate that the vegetative genome of the temperate, salmonella-specific bacteriophage, Epsilon 15, is circularly-permuted

Abstract
Summary Data from physical and genetic mapping studies show that the vegetative genome of the temperate, Group E 1 Salmonella bacteriophage, ε15, is circularly-permuted. Preliminary evidence suggests that the circular permutation of the ε15 genome is non-random.