FIG. 4.

MBOREP1 and BOXC1 PCR-fingerprinting patterns of representative AT isolates from central Argentina and Uruguay. Panels A and B show the patterns of PCR products generated by using chromosomal DNA of the indicated strains and primer MBOREP1 or BOXC1, respectively. The DNA molecular-weight standard corresponding to restriction fragments of the lambda phage digested with HindIII is indicated on the left side of each panel. The arrow on the right side designates the differential BOXC1 amplicon of ca. 725 bp, which was only detected in the AT isolate LPU83. Agarose gels containing ethidium bromide were photographed with Polaroid type 667 film under UV illumination. Pictures were scanned with a Hewlett-Packard ScanJet4C (high resolution), composed with Corel Draw 5, and printed with a Rainbow-3M dye sublimation primer.