Cited by 1,094Genetic Associations and EpidemiologyGenomics and Phylogenetic StudiesGenomics and Rare Diseases

High-coverage whole-genome sequencing of the expanded 1000 Genomes Project cohort including 602 trios

Open access
Byrska-Bishop, Marta, Evani, Uday S., Zhao, Xuefang, Basile, Anna O., Abel, Haley J., Regier, Allison A., Corvelo, André, Clarke, Wayne E. +34 more·2022·Cell

Published version of a preprint

Abstract

The 1000 Genomes Project (1kGP) is the largest fully open resource of whole-genome sequencing (WGS) data consented for public distribution without access or use restrictions. The final, phase 3 release of the 1kGP included 2,504 unrelated samples from 26 populations and was based primarily on low-coverage WGS. Here, we present a high-coverage 3,202-sample WGS 1kGP resource, which now includes 602 complete trios, sequenced to a depth of 30X using Illumina. We performed single-nucleotide variant (SNV) and short insertion and deletion (INDEL) discovery and generated a comprehensive set of structural variants (SVs) by integrating multiple analytic methods through a machine learning model. We show gains in sensitivity and precision of variant calls compared to phase 3, especially among rare SNVs as well as INDELs and SVs spanning frequency spectrum. We also generated an improved reference imputation panel, making variants discovered here accessible for association studies.

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Crossref · 10.1016/j.cell.2022.08.004

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  • The SV callset that was published in recent studies reported only 27,166 SVs, with 8,093 insertions, 13,506 deletions and 5,567 other types of SV.

    “The SV callset that was published in recent studies reported only 27,166 SVs, with 8,093 insertions, 13,506 deletions and 5,567 other types of SV.”

    From Comprehensive genome analysis and variant detection at scale using DRAGEN (2025) · cites this paper as [60]

    The Results section (“Structural variation across the 3,202 1kGP samples”; page not available) reports 173,366 SV loci, including 49,693 insertions and 90,259 deletions—not the claimed 27,166 total, 8,093 insertions and 13,506 deletions. Its comparison with the earlier phase 3 call set also gives a different total: 68,697 SV sites. (LLM, conf=0.88)

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  • The average SNVs per sample ranged from 3,930,793 (EUR) to 4,771,879 (AFR) and followed expected diversity.

    “The average SNVs per sample ranged from 3,930,793 (EUR) to 4,771,879 (AFR) and followed expected diversity60.”

    From Comprehensive genome analysis and variant detection at scale using DRAGEN (2025) · cites this paper as [60]

    Table 1 in Results, “Small variation across the 3,202 1kGP samples” (page not available), supports the ancestry pattern: AFR has the highest average SNV count and EUR the lowest. But it reports 4,653,521 SNVs per AFR sample and 3,818,951 per EUR sample, not the two figures cited. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Analysis with DRAGEN showed improved performance of variant calling in terms of novel small variants (SNVs and indels) and SVs.

    “Analysis with DRAGEN showed an improved performance of variant callings in terms of novel small variants (that is, SNVs and indels) and SVs60.”

    From Comprehensive genome analysis and variant detection at scale using DRAGEN (2025) · cites this paper as [60]

    The Results sections comparing calls with the 1kGP phase 3 set report improved discovery of SNVs, indels, and SVs. But STAR★Methods (Method details; page unavailable) says SNVs and indels were called with GATK, while the SV call set used other pipelines; the paper does not attribute these improvements to DRAGEN. (LLM, conf=0.89)

    Experimental — accuracy not yet measured
  • The low-coverage (7.4×) WGS datasets of 2,504 samples in 1kGP have been expanded to 3,202 high-coverage (35×) datasets.

    “Recently, the low-coverage (7.4×) WGS datasets22 of 2,504 samples in 1kGP have been expanded to 3,202 high-coverage (35×) datasets60.”

    From Comprehensive genome analysis and variant detection at scale using DRAGEN (2025) · cites this paper as [60]

    The Introduction reports that the original 2,504 samples, sequenced at a mean depth of 7.4×, were included in an expanded high-coverage cohort of 3,202 samples. The stated 35× depth does not match our copy: the Introduction gives a target of 30×, and STAR★Methods reports average coverage of 34× per sample (no page numbers provided). (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Previous short-read, linear reference studies have discovered 7,500-9,500 SVs per sample, whereas long-read sequencing efforts have routinely discovered around 25,000.

    “Previous short-read, linear reference studies have discovered 7,500–9,500 SVs per sample19,68, whereas long-read sequencing efforts have routinely discovered around 25,000.”

    From A draft human pangenome reference. (2023) · cites this paper as [19]

    The Results section (“Structural variation across the 3,202 1kGP samples”; page not provided) reports about 9,679 SVs per genome from short-read WGS, supporting the approximate scale of the cited short-read claim. That average is slightly above the stated 7,500–9,500 range, which the paper does not establish. (LLM, conf=0.85)

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Authors
Byrska-Bishop, M., Evani, U. S., Zhao, X., Basile, A. O., Abel, H. J., Regier, A. A., Corvelo, A., Clarke, W. E., Musunuri, R., Nagulapalli, K., Fairley, S., Runnels, A., Winterkorn, L., Lowy, E., Eichler, E. E., Korbel, J. O., Lee, C., Marschall, T., Devine, S. E., Harvey, W. T., Zhou, W., Mills, R. E., Rausch, T., Kumar, S., Alkan, C., Hormozdiari, F., Chong, Z., Chen, Y., Yang, X., Lin, J., Gerstein, M. B., Kai, Y., Zhu, Q., Yilmaz, F., Xiao, C., Flicek, P., Germer, S., Brand, H., Hall, I. M., Talkowski, M. E., Narzisi, G., & Zody, M. C.
Affiliations
  • New York Genome Center (US)
  • Broad Institute (US)
  • Washington University in St. Louis (US)
  • European Bioinformatics Institute (GB)
Corresponding author
Zody, Michael C.
Venue
Cell
Publisher
Elsevier BV
Published
2022-09
Volume
185
Issue
18
Pages
3426-3440.e19
ISSN
0092-8674 (ISSN-L)
OpenAlex
W4294012180
Cited by
1,094
References
81
Citations by year
2026: 234 · 2025: 301 · 2024: 246 · 2023: 168 · 2022: 104 · 2021: 36 · 2020: 1 · 2019: 1 · 2017: 1 · 2014: 1
FWCI
126.46
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nd)
  • SSRN Electronic Journal (acceptedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Digital Commons@Becker (Washington University School of Medicine) (submittedVersion, cc-by)
Funders
  • National Institutes of Health (U24HG007497)
  • Wellcome Trust (WT104947/Z/14/Z)
  • National Human Genome Research Institute (UM1HG008853, UM1HG008901)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD081256, UM1HG008895)
  • National Institute of Mental Health (MH115957)
  • U.S. National Library of Medicine
  • European Molecular Biology Laboratory
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
Keywords
1000 Genomes Project, trios, single nucleotide variants, structural variants, rare variants, human genetic variation
MeSH terms
Whole Genome Sequencing, Female, Humans, Male, Genome, Human, Polymorphism, Single Nucleotide, INDEL Mutation, High-Throughput Nucleotide Sequencing

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