Fig. 1. : visualisation of homoduplexes and heteroduplexes DNA bands in a mycobacteria mobility shift assay (MMSA) gel. The homoduplexes and heteroduplexes from MMSA performed with distinct mycobacterial species were resolved in a urea-polyacrylamide gel stained by ethidium bromide. Lane 1: Bacille Calmette-Guérin (BCG) only; 2: BCG + Mycobacterium avium; 3: M. avium only; 4: BCG + Mycobacterium kansasii; 5: BCG + Mycobacterium fortuitum; 6: M. fortuitum only; 7: BCG + Mycobacterium gordonae.