Table 2.

Differentiating power of rep-PCR fingerprints from 15 ECOR strains in relation to cycling regimen and use of single versus multiple cyclers

Fingerprints from cyclers A and B analyzed separately or combinedCycling regimenDifferentiation index (%)a
ERIC2 fingerprintsBOXA1R fingerprintsComposite fingerprints
SeparateStandardb, d64.461.054.4
65-TDb, e53.671.853.4
CombinedStandardc, d68.660.958.9
65-TDc, e55.473.352.2
  • a Smaller values indicate better differentiation. Six replicate fingerprints per strain were included in each analysis.

  • b With A separate from B, for standard versus 65-TD cycling, P = 0.03 (ERIC2), P = 0.01 (BOXA1R), and P > 0.10 (composite).

  • c With A and B combined, for standard versus 65-TD cycling, P = 0.01 (ERIC2), P = 0.003 (BOXA1R), and P = 0.06 (composite).

  • d With standard cycling, for A separate from B versus A and B combined, P = 0.01 (ERIC2), P > 0.10 (BOXA1R), and P < 0.001 (composite).

  • e With 65-TD cycling, for A separate from B versus A and B combined, P > 0.10 for all comparisons.