16S rRNA gene sequencing is commonly used for identification, classification and quantitation of microbes within complex biological mixture. In brief, the hypervariable regions of 16s rDNA in prokaryote are amplified by PCR. The CD genomics can provide microorganism quantification amplicon sequencing based on 16S external standard sequences to obtain absolute abundance data for species in the sample. The 16S amplicon library is constructed and sequenced by adding a synthetic sequence of known copy number to the sample DNA, and then a standard curve is drawn according to the number of amplicon reads and the absolute copy number of the external standard sequence. https://www.cd-genomics.com/absolute-quantitative-16s-18s-its-amplicon-sequencing.html
GenomicsNext-Generation Sequencing