Cited by 68Genomics and Phylogenetic StudiesGenomic variations and chromosomal abnormalitiesGenomics and Rare Diseases

Analysis and benchmarking of small and large genomic variants across tandem repeats

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English, Adam C., Dolzhenko, Egor, Ziaei Jam, Helyaneh, McKenzie, Sean K., Olson, Nathan D., De Coster, Wouter, Park, Jonghun, Gu, Bida +6 more·2025·Nature Biotechnology

Abstract

Tandem repeats (TRs) are highly polymorphic in the human genome, have thousands of associated molecular traits and are linked to over 60 disease phenotypes. However, they are often excluded from at-scale studies because of challenges with variant calling and representation, as well as a lack of a genome-wide standard. Here, to promote the development of TR methods, we created a catalog of TR regions and explored TR properties across 86 haplotype-resolved long-read human assemblies. We curated variants from the Genome in a Bottle (GIAB) HG002 individual to create a TR dataset to benchmark existing and future TR analysis methods. We also present an improved variant comparison method that handles variants greater than 4 bp in length and varying allelic representation. The 8.1% of the genome covered by the TR catalog holds ~24.9% of variants per individual, including 124,728 small and 17,988 large variants for the GIAB HG002 ‘truth-set’ TR benchmark. We demonstrate the utility of this pipeline across short-read and long-read technologies. A truth-set catalog of human tandem repeats allows benchmarking of variant analysis tools.

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  • STR expansions are associated with a wide range of severe neurological disorders, such as amyotrophic lateral sclerosis, Friedreich ataxia and Huntington's disease.

    “Furthermore, STR expansions are associated with a wide range of severe neurological disorders, such as amyotrophic lateral sclerosis, Friedreich ataxia and Huntington’s disease50,72.”

    From Comprehensive genome analysis and variant detection at scale using DRAGEN (2025) · cites this paper as [50]

    The Abstract states that tandem-repeat alleles are associated with many neurological or neurodegenerative diseases, and reference 8 identifies a repeat expansion linked to ALS. Our copy does not identify Friedreich ataxia, and its Huntington-related reference concerns Huntington disease-like 2 rather than Huntington’s disease itself. (LLM, conf=0.84)

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  1. [83]English A GIAB TandemRepeats benchmark v1.0. https://ftp-trace.ncbi.nlm.nih.gov/ReferenceSamples/giab/release/AshkenazimTrio/HG002_NA24385_son/TandemRepeats_v1.0 (2023).

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Authors
English, A. C., Dolzhenko, E., Ziaei Jam, H., McKenzie, S. K., Olson, N. D., De Coster, W., Park, J., Gu, B., Wagner, J., Eberle, M. A., Gymrek, M., Chaisson, M. J. P., Zook, J. M., & Sedlazeck, F. J.
Affiliations
  • Baylor College of Medicine (US)
  • Pacific Biosciences (United States) (US)
  • National Institute of Standards and Technology (US)
  • University of California San Diego (US)
  • University of Southern California (US)
Corresponding author
  • English, Adam C.
  • Sedlazeck, Fritz J.
Venue
Nature Biotechnology
Published
2024-04-26
Volume
43
Issue
3
Pages
431-442
ISSN
  • 0733-222X (ISSN-L)
  • 1087-0156
  • 1546-1696
OpenAlex
W4395667653
Cited by
68
References
81
Citations by year
2026: 23 · 2025: 29 · 2024: 15 · 2023: 1
FWCI
9.09
Type
journal article
Language
en
Open access
Locations
  • Nature Biotechnology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Commons-TMC (Texas Medical Center) (submittedVersion)
Funders
  • National Institutes of Health (1ug3ns132105-01)
  • National Institute of Standards and Technology
  • National Institute on Aging (U01AG058589, P30AG066546)
  • National Human Genome Research Institute (HG010149, U24HG007497, R01HG011649, R01HG010149, U01HG011758)
  • National Institute of Neurological Disorders and Stroke (UG3 NS132105)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
Keywords
tandem repeats, genetic variants, variant calling, long-read assembly, haplotype-resolved genome assembly, Genome in a Bottle, HG002
MeSH terms
Haplotypes, Humans, Genetic Variation, Genome, Human, Benchmarking, Tandem Repeat Sequences, Genomics

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