Sample tracking in microbiome community profiling assays using synthetic 16S rRNA gene spike-in controls.

ABSTRACT: Workflows for microbiome community profiling by high-throughput sequencing are prone to sample mix-ups and cross-contamination due to the complexity of the procedures and large number of samples typically analyzed in parallel. We employed synthetic 16S rRNA gene spike-in controls to establish a method for tracking of sample identity and detection of cross-contamination in microbiome community profiling assays based on 16S rRNA gene amplicon sequencing (16S-seq). Results demonstrated that combinatorial sample tracking mixes (STMs) can be reliably resolved by Illumina sequencing and faithfully represent their sample of origin. In a single-blinded experiment, addition of STMs at low levels was shown to be sufficient to unambiguously identify and resolve swapped samples. Using artificial admix

SUBMITTER: Tourlousse DM 

PROVIDER: S-EPMC6002373 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature