FIG. 3.
Agarose gel electrophoresis of restriction endonuclease-digested DNA of each type of gentamicin resistance conjugative plasmid and hybridization with pMG1. Agarose gel electrophoresis of EcoRI-digested plasmid DNA (A1) and the Southern hybridization with pMG1 (A2). Agarose gel electrophoresis of NdeI-digested plasmid DNA (B1) and Southern hybridization with pMG1 (B2). Lanes: 1, HindIII-digested lambda DNA; 2, pMG1; 3, pG200 (type A); 4, pG445 (type B); 5, pG566 (type C); 6, pG700 (type D); 7, pG120 (type E); 8, pAD1.
