DNA enrichment

PCR thermo cycler amplify fragments of genomic DNA during polymerase chain reaction. Diagnostic gene fragments (genetic markers) for taxa identification or characterization of new genetic diversity are amplified in extractions from recent and ancient sedimentary DNA or from organismic material.

qPCR (quantitative PCR) is similar to PCR, but enables also a relative quantification of DNA during the PCR cycles and is used to quantify DNA libraries prior to DNA sequencing or for SNP detection using high resolution melting curves.