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Dot blot hybridization of PCR products from the CVC strain-specific minilibrary against digoxigenin-labeled CVC strain DNA (left spot of each pair) and PD strain DNA (right spot of each pair). Dotted boxes indicate clones that were selected for sequencing. Dots at position 48 correspond to 100 ng of genomic DNA from the CVC (left) and PD (right) strains.
