FIG. 1.
PCR amplification of DNA from various Francisella strains using the REP1R-I and REP2-I primers. Samples represent F. tularensis subsp. tularensis strains (FSC138, FSC043, FSC041, and FSC198) (lanes 1 to 4), F. tularensis subsp. holarctica strains (FSC196, FSC155, FSC150, FSC108, and FSC157) (lanes 5 to 9), an F. tularensis subsp. mediaasiatica strain (FSC149) (lane 10), an F. tularensis subsp. holarctica strain from Japan (FSC024) (lane 11), F. tularensis subsp. novicida strains (FSC040 and FSC156) (lanes 12 and 13), and an F. philomiragia strain (FSC 144) (lane 14). Strain designations are indicated in Table 1. Lane N, water used as a negative control. Lane M, molecular markers (sizes in base pairs).