Southern analysis of wzaVv from opaque- and translucent-phase variants. HindIII digests of chromosomal DNA extracted from the following strains are shown: lane 1, M06-24/O; lane 2, M06-24/T; lane 3, E4125/O; lane 4, E4125/T; lane 5, 345/O; lane 6, 345/T; lane 7, LC4/O; and lane 8, LC4/T. Size markers for a lambda DNA HindIII digest are indicated.