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Multi-Trait GWAS

Definition
AI-generated

Multi-trait GWAS jointly models association with two or more traits—using summary-statistic correlation structure, multivariate mixed models, or related frameworks—to boost power, estimate shared genetic architecture, and characterize cross-trait effects at loci.

Topics

Why it matters in GWAS

Correlated traits share genetic signal; joint analysis can detect loci missed in single-trait scans and supports pleiotropy dissection and interpretation of genetic correlation.

Example usage

"We ran a multi-trait GWAS of related glycemic endpoints to increase power and summarize cross-trait effects at each locus."

References

  • Jee J, et al. (2026). The pleiotropic landscape of the human genome. Nat Rev Genet. https://doi.org/10.1038/s41576-025-00908-0
  • Turley P, et al. (2018). Multi-trait analysis of GWAS. Nat Genet.

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