Electrophoresis in a 1.5% agarose gel of PCR-amplified 16S-23S ISRs of C. divergens, C. mobile, C. gallinarum, and C. piscicola. Lanes 1 and 12, molecular weight marker (100-bp DNA ladder); lane 2, C. divergens NCDO 2763T; lane 3, C. divergens INRA 541; lane 4, C. divergens V41; lane 5, C. piscicola NCDO 2762T; lane 6, C. piscicola V1; lane 7, C. piscicola SF 644; lane 8, C. gallinarum NCDO 2766T; lane 9, C. gallinarum INRA 680; lane 10, C. mobile DSM 4849T; lane 11, C. piscicola INRA 501.