ASM 2019 Poster Download

Strain level microbiome profiling is needed for a full understanding of how microbial communities influence human health. Microbiome profiling of rRNA gene amplicons is a well understood method that is rapid and inexpensive, but standard 16S rRNA gene methods generally cannot differentiate closely related strains. Whole genome/shotgun microbiome profiling is considered a higher resolution alternative, but with decreased throughput and significantly increased sequencing costs and analysis burden. With both methods there are also challenges with microbial lysis, DNA preparation, and taxonomic analysis. Specialized microbiome focused protocols were developed to achieve strain level taxonomic differentiation using a rapid, high throughput rRNA gene assay. The protocol integrates lysis and DNA preparation improvements with a unique high information content amplicon and associated novel database to enable taxonomic differentiation of closely related microbial strains.

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