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May 13, 2019
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This molecular-based approach for determining bacterial fitness facilitates precise and accurate detection of microorganisms using unique genomic DNA barcodes that are quantified via digital PCR. The protocol describes calculating the competitive index for Salmonella strains; however, the technology is readily adaptable to protocols requiring absolute quantification of any genetically-malleable organism.
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Digital PCRCompetitive IndexHigh-throughput AnalysisFitnessSalmonellaQuantificationMixed PopulationMolecular-based TechniquesGenetic MarkersBacterial ChromosomesGenomic DNADilution SeriesDigital PCR SupermixProbe-based ChemistryNo Template ControlsNegative ControlsPositive ControlsDroplet GeneratorThermal CyclerData Analysis Software
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Shaw, J. A., Bourret, T. J. Digital PCR-based Competitive Index for High-throughput Analysis of Fitness in Salmonella. J. Vis. Exp. (147), e59630, doi:10.3791/59630 (2019).
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