Journal: Journal of dairy science
Article Title: Systematic assessment of the reliability of quantitative PCR assays targeting IS900 for the detection of Mycobacterium avium ssp. paratuberculosis presence in animal and environmental samples.
doi: 10.3168/jds.2023-24566
Figure Lengend Snippet: Figure 3. Performance of the 6 qPCR designs using different amounts of MAP K-10 DNA diluted in dilution buffer (A) or fecal DNA extract (B). A serial dilution of DNA from the MAP K-10 reference strain was used to construct a standard curve including 10, 20, 100, 200, 1,000, 2,000, and 10,000 genome equivalents of MAP. The different qPCR assay designs, namely “Kim,” “Slana,” “Herthnek,” “Donaghy,” “Vary,” and “Bannantine,” were analyzed using MAP DNA either diluted in dilution buffer (pure DNA) or spiked into free-MAP fecal DNA extract (spiked feces). The least squares means of the qPCR Cycle of quantification (Cq) with different letters differ (P < 0.05).
Article Snippet: Positive control reactions containing 100 genome copies of the MAP K-10 reference strain DNA (ATCC BAA-968) was used to assess plate-to-plate (run-to-run) variability.
Techniques: Serial Dilution, Construct