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Metagenomics

Definition
AI-generated

Metagenomics is the sequencing and analysis of DNA from mixed microbial communities without culturing individual species, yielding taxonomic profiles, gene content, and strain-level variation from samples such as stool or oral swabs.

Why it matters in GWAS

Shotgun metagenomics links host SNPs to microbial gene abundance and pathway activity; it complements 16S surveys and feeds microbiome–host multi-omics studies.

Example usage

"Shotgun metagenomics quantified species copy number for association with host polygenic scores."

References

  • Quince C, et al. (2017). Shotgun metagenomics, from sampling to analysis. Nat Biotechnol.

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