Cited by 221Race, Genetics, and SocietyGenetic Associations and EpidemiologyForensic and Genetic Research

A standardized framework for representation of ancestry data in genomics studies, with application to the NHGRI-EBI GWAS Catalog

Open access
Morales, Joannella, Welter, Danielle, Bowler, Emily H., Cerezo, Maria, Harris, Laura W., McMahon, Aoife C., Hall, Peggy, Junkins, Heather A. +10 more·2018·Genome Biology

Published version of a preprint

Abstract

The accurate description of ancestry is essential to interpret, access, and integrate human genomics data, and to ensure that these benefit individuals from all ancestral backgrounds. However, there are no established guidelines for the representation of ancestry information. Here we describe a framework for the accurate and standardized description of sample ancestry, and validate it by application to the NHGRI-EBI GWAS Catalog. We confirm known biases and gaps in diversity, and find that African and Hispanic or Latin American ancestry populations contribute a disproportionately high number of associations. It is our hope that widespread adoption of this framework will lead to improved analysis, interpretation, and integration of human genomics data.

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Crossref · 10.1186/s13059-018-1396-2

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  • Poor generalizability of genetic studies across populations arises from the overwhelming abundance of European descent studies and dearth of well-powered studies in globally diverse populations.

    “Poor generalizability of genetic studies across populations arises from the overwhelming abundance of European descent studies and dearth of well-powered studies in globally diverse populations25–28.”

    From Clinical use of current polygenic risk scores may exacerbate health disparities (2019) · cites this paper as [27]

    The Results (Improving data analysis and assessing diversity; page unavailable) show a strong European-ancestry bias and very low representation of several other populations. The Background links ancestry differences to the generalizability of genetic findings. The paper does not establish that this imbalance causes poor generalizability or document a dearth of specifically well-powered studies across globally diverse populations. (LLM, conf=0.86)

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  • Africa retains the most genetic diversity, and Africans are understudied but disproportionately informative for genetic analyses and evolutionary history.

    “These considerations notwithstanding, there are critical needs and challenges for expanding the scale of genetic studies of heritable traits in diverse populations; this is especially apparent in Africa where humans originated and retain the most genetic diversity, as Africans are understudied but disproportionately informative for genetic analyses and evolutionary history27,73.”

    From Clinical use of current polygenic risk scores may exacerbate health disparities (2019) · cites this paper as [27]

    The Results (Improving data analysis and assessing diversity; page not provided) show that African-ancestry participants account for 2.4% of individuals in the GWAS Catalog but contribute 7% of associations. The Discussion (Assessing diversity in genomics; page not provided) links this yield to higher genetic diversity and reduced linkage disequilibrium. Our copy does not state that Africa has the most genetic diversity, that humans originated there, or that African populations are disproportionately informative for evolutionary history. (LLM, conf=0.86)

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Authors
Morales, J., Welter, D., Bowler, E. H., Cerezo, M., Harris, L. W., McMahon, A. C., Hall, P., Junkins, H. A., Milano, A., Hastings, E., Malangone, C., Buniello, A., Burdett, T., Flicek, P., Parkinson, H., Cunningham, F., Hindorff, L. A., & MacArthur, J. A. L.
Affiliations
  • European Bioinformatics Institute (GB)
  • National Institutes of Health (US)
Corresponding author
  • Morales, Joannella
  • MacArthur, Jacqueline A. L.
Venue
Genome Biology
Published
2018-02-15
Volume
19
Issue
1
Pages
21-21
ISSN
  • 1465-6906 (ISSN-L)
  • 1474-760X
OpenAlex
W2785412624
Cited by
217
References
28
Citations by year
2026: 17 · 2025: 15 · 2024: 28 · 2023: 35 · 2022: 32 · 2021: 31 · 2020: 29 · 2019: 18 · 2018: 10 · 2017: 1
FWCI
14.08
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Genome biology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • European Molecular Biology Laboratory
  • National Institutes of Health
  • National Human Genome Research Institute (U41HG006104, U41HG007823)
  • National Institute of General Medical Sciences
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Race, Genetics, and Society
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Forensic and Genetic Research
Keywords
GWAS Catalog, ancestry bias, population diversity, African ancestry, genetic association studies
MeSH terms
Humans, Genetic Variation, Genomics, Racial Groups, Genome-Wide Association Study

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