TnYLB-1 transposition in FZB42. CFU resulting from plating of two separate overnight (O/N) cultures of B. amyloliquefaciens strains carrying either pMarA, or -C at 50°C on LB agar with or without the indicated antibiotics.

Transposition frequency was calculated as Kanr colonies/LB colonies. Ermr/Kanr represents the percentage of the O/N cultures that displayed the plasmid-encoded antibiotic resistance (Ermr) versus the transposon-encoded resistance (Kanr). The data presented in Table 2 are the average of two representative, independent experiments.