Figure 2. Pulsed-field gel electrophoresis (PFGE) patterns, susceptibility patterns, and key resistance genes for recipient and transconjugants in in vitro conjugation experiments. Boxes denote the area of variability in the PFGE patterns between isolates with and without pQC. CIP, ciprofloxacin; TOB, tobramycin; CRO, ceftriaxone; TET, tetracycline. *Escherichia coli transformant served as donor for Enterobacter cloacae 02-0702.