A

DNA reference reagents isolate biases in microbiome profiling: a global multi-lab study

mSystems, vol. 10, pp. e0046625

Abstract

When profiling the human gut microbiome, technical biases introduced by analytical approaches impede translational research, reducing data reliability and study comparability. Here, through a global study involving 23 labs, we analyzed a wide range of sequencing and bioinformatic approaches for the taxonomic profiling of two well-defined DNA reference reagents (RRs) comprised of 20 common gut bacteria. Through both shotgun and 16S rRNA gene amplicon sequencing, we aimed to isolate sources of bias and understand their impact on microbiome profiling accuracy. Importantly, minimum quality criteria (MQC) were established and are used to evaluate profiling performance. We found that the variability of shotgun sequencing data sets was greater than that of 16S rRNA gene amplicon sequencing and isolated sources of bias in wet and dry lab steps, such as sequencing depth, primer and database choices, rarefaction, and 16S copy number adjustment. This study presents well-defined RRs and MQC to combat technical bias, paving the way for reliable and comparable microbiome research.IMPORTANCEThis benchmark paper highlights the true level of variability in microbiome data across the world and across sectors, underscoring the critical need for the use of WHO International DNA Gut Reference Reagents (RRs) to elevate the quality of data in microbiome research. This global study is the first of its kind, revealing the reality of the bias in the field, comprehensively testing methodologies used by leading laboratories across the world, but also providing avenues for workflow optimization, to accelerate innovation and translational research and move the field forward.

Authors 89

  1. Medicines and Healthcare products Regulatory Agency

    Affiliation as printed

    Medicines and Healthcare Products Regulatory Agency

    Medicines and Healthcare Products Regulatory Agency, London, United Kingdom

  2. Medicines and Healthcare products Regulatory Agency

    Affiliation as printed

    Medicines and Healthcare Products Regulatory Agency

    Medicines and Healthcare Products Regulatory Agency, London, United Kingdom

  3. Medicines and Healthcare products Regulatory Agency

    Affiliation as printed

    Medicines and Healthcare Products Regulatory Agency

    Medicines and Healthcare Products Regulatory Agency, London, United Kingdom

  4. Medicines and Healthcare products Regulatory Agency

    Affiliation as printed

    Medicines and Healthcare Products Regulatory Agency

    Medicines and Healthcare Products Regulatory Agency, London, United Kingdom

  5. UNSW Sydney · St George Hospital

    Affiliation as printed

    UNSW Microbiome Research Centre, St George Hospital

    UNSW Microbiome Research Centre, St George Hospital, Kogarah, New South Wales, Australia

  6. UNSW Sydney

    Affiliation as printed

    NSW Systems Biology Initiative, School of Biotechnology and Biomolecular Sciences, University of New South Wales

    NSW Systems Biology Initiative, School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia

  7. Medical University of Graz

    Affiliation as printed

    Diagnostic & Research Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz

    Diagnostic & Research Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Graz, Austria

  8. Medical University of Graz · BioTechMed-Graz

    Affiliation as printed

    BioTechMed-Graz

    Diagnostic & Research Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz

    BioTechMed-Graz, Graz, Austria

    Diagnostic & Research Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Graz, Austria

  9. Medical University of Graz

    Affiliation as printed

    Core Facility Molecular Biology, Center for medical research, Medical University of Graz

    Core Facility Molecular Biology, Center for medical research, Medical University of Graz, Graz, Austria

  10. Medical University of Graz

    Affiliation as printed

    Core Facility Molecular Biology, Center for medical research, Medical University of Graz

    Core Facility Molecular Biology, Center for medical research, Medical University of Graz, Graz, Austria

  11. University of Vienna · Medical University of Vienna

    Affiliation as printed

    Department of Microbiology and Ecosystem Science, Centre for Microbiology and Environmental Systems Science, UBB University of Vienna

    Joint Microbiome Facility of the Medical University of Vienna, University of Vienna

    Department of Microbiology and Ecosystem Science, Centre for Microbiology and Environmental Systems Science, UBB University of Vienna, Vienna, Austria

    Joint Microbiome Facility of the Medical University of Vienna, University of Vienna, Vienna, Austria

  12. University of Vienna · Medical University of Vienna

    Affiliation as printed

    Department of Laboratory Medicine, Medical University of Vienna

    Joint Microbiome Facility of the Medical University of Vienna, University of Vienna

    Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria

  13. University of Vienna · Medical University of Vienna

    Affiliation as printed

    Department of Laboratory Medicine, Medical University of Vienna

    Joint Microbiome Facility of the Medical University of Vienna, University of Vienna

    Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria

  14. University of Vienna · Medical University of Vienna

    Affiliation as printed

    Department of Microbiology and Ecosystem Science, Centre for Microbiology and Environmental Systems Science, UBB University of Vienna

    Joint Microbiome Facility of the Medical University of Vienna, University of Vienna

    Department of Microbiology and Ecosystem Science, Centre for Microbiology and Environmental Systems Science, UBB University of Vienna, Vienna, Austria

    Joint Microbiome Facility of the Medical University of Vienna, University of Vienna, Vienna, Austria

  15. University of Vienna · Medical University of Vienna

    Affiliation as printed

    Department of Microbiology and Ecosystem Science, Centre for Microbiology and Environmental Systems Science, UBB University of Vienna

    Joint Microbiome Facility of the Medical University of Vienna, University of Vienna

    Department of Microbiology and Ecosystem Science, Centre for Microbiology and Environmental Systems Science, UBB University of Vienna, Vienna, Austria

    Joint Microbiome Facility of the Medical University of Vienna, University of Vienna, Vienna, Austria

  16. University of Guelph

    Affiliation as printed

    Department of Molecular and Cellular Biology, University of Guelph

    Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada

  17. University of Guelph

    Affiliation as printed

    Department of Molecular and Cellular Biology, University of Guelph

    Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada

  18. Clinical Microbiomics (Denmark)

    Affiliation as printed

    Clinical Microbiomics A/S

    Clinical Microbiomics A/S, Copenhagen, Denmark

  19. Clinical Microbiomics (Denmark)

    Affiliation as printed

    Clinical Microbiomics A/S

    Clinical Microbiomics A/S, Copenhagen, Denmark

  20. Clinical Microbiomics (Denmark)

    Affiliation as printed

    Clinical Microbiomics A/S

    Clinical Microbiomics A/S, Copenhagen, Denmark

  21. Clinical Microbiomics (Denmark)

    Affiliation as printed

    Clinical Microbiomics A/S

    Clinical Microbiomics A/S, Copenhagen, Denmark

  22. Universität Hamburg · German Rheumatism Research Centre · University Medical Center Hamburg-Eppendorf

    Affiliation as printed

    Bioinformatics and Computational Biology, University Heart & Vascular Centre Hamburg, University Medical Centre Hamburg-Eppendorf

    German Rheumatology Research Center Berlin, A Leibniz Institute

    Bioinformatics and Computational Biology, University Heart & Vascular Centre Hamburg, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany

    German Rheumatology Research Center Berlin, A Leibniz Institute, Berlin, Germany

  23. German Rheumatism Research Centre

    Affiliation as printed

    German Rheumatology Research Center Berlin, A Leibniz Institute

    German Rheumatology Research Center Berlin, A Leibniz Institute, Berlin, Germany

  24. German Rheumatism Research Centre · Technische Universität Berlin

    Affiliation as printed

    Chair of Cytometry, Institute of Biotechnology, Technische Universität Berlin

    German Rheumatology Research Center Berlin, A Leibniz Institute

    German Rheumatology Research Center Berlin, A Leibniz Institute, Berlin, Germany

  25. Soonchunhyang University

    Affiliation as printed

    Probiotics Microbiome Convergence Center, Soonchunhyang University

    Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan-si, South Korea

  26. Soonchunhyang University

    Affiliation as printed

    Probiotics Microbiome Convergence Center, Soonchunhyang University

    Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan-si, South Korea

  27. Soonchunhyang University

    Affiliation as printed

    Probiotics Microbiome Convergence Center, Soonchunhyang University

    Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan-si, South Korea

  28. Soonchunhyang University

    Affiliation as printed

    Probiotics Microbiome Convergence Center, Soonchunhyang University

    Probiotics Microbiome Convergence Center, Soonchunhyang University, Asan-si, South Korea

  29. Soonchunhyang University

    Affiliation as printed

    BiowaveW

    Department of Obstetrics and Gynecology, Ewha College of Medicine

    Probiotics Microbiome Convergence Center, Soonchunhyang University

    Department of Obstetrics and Gynecology, Ewha College of Medicine, Seoul, South Korea

  30. National Institute of Genomic Medicine · Universidad Nacional Autónoma de México

    Affiliation as printed

    Instituto de Biotecnologia UNAM

    Unidad de Vinculación Cientifica UNAM-INMEGEN, Instituto Nacional de Medicina Genomica

  31. National Institute of Genomic Medicine · Universidad Nacional Autónoma de México

    Affiliation as printed

    Instituto de Biotecnologia UNAM

    Unidad de Vinculación Cientifica UNAM-INMEGEN, Instituto Nacional de Medicina Genomica

  32. Erasmus MC · Erasmus University Rotterdam

    Affiliation as printed

    Laboratory of Population Genomics, Department of Internal Medicine, Erasmus University Medical Center

    Laboratory of Population Genomics, Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands

  33. Erasmus MC · Erasmus University Rotterdam

    Affiliation as printed

    Laboratory of Population Genomics, Department of Internal Medicine, Erasmus University Medical Center

    Laboratory of Population Genomics, Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands

  34. Erasmus MC · Erasmus University Rotterdam

    Affiliation as printed

    Laboratory of Population Genomics, Department of Internal Medicine, Erasmus University Medical Center

    Laboratory of Population Genomics, Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands

  35. Erasmus MC · Erasmus University Rotterdam

    Affiliation as printed

    Laboratory of Population Genomics, Department of Internal Medicine, Erasmus University Medical Center

    Laboratory of Population Genomics, Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands

  36. Leiden University Medical Center

    Affiliation as printed

    Center for Microbiome Analyses and Therapeutics, Department of Medical Microbiology, Leiden University Medical Center

    Center for Microbiome Analyses and Therapeutics, Department of Medical Microbiology, Leiden University Medical Center, Leiden, the Netherlands

  37. Leiden University Medical Center

    Affiliation as printed

    Center for Microbiome Analyses and Therapeutics, Department of Medical Microbiology, Leiden University Medical Center

    Center for Microbiome Analyses and Therapeutics, Department of Medical Microbiology, Leiden University Medical Center, Leiden, the Netherlands

  38. Leiden University Medical Center

    Affiliation as printed

    Center for Microbiome Analyses and Therapeutics, Department of Medical Microbiology, Leiden University Medical Center

    Center for Microbiome Analyses and Therapeutics, Department of Medical Microbiology, Leiden University Medical Center, Leiden, the Netherlands

  39. Leiden University Medical Center

    Affiliation as printed

    Center for Microbiome Analyses and Therapeutics, Department of Medical Microbiology, Leiden University Medical Center

    Center for Microbiome Analyses and Therapeutics, Department of Medical Microbiology, Leiden University Medical Center, Leiden, the Netherlands

  40. Leiden University Medical Center

    Affiliation as printed

    Center for Microbiome Analyses and Therapeutics, Department of Medical Microbiology, Leiden University Medical Center

    Center for Microbiome Analyses and Therapeutics, Department of Medical Microbiology, Leiden University Medical Center, Leiden, the Netherlands

  41. Maastricht University

    Affiliation as printed

    Department of Medical Microbiology, Infectious Diseases and Infection Prevention, School for Nutrition and Translational Research in Metabolism, Maastricht University

    Department of Medical Microbiology, Infectious Diseases and Infection Prevention, School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands

  42. Maastricht University

    Affiliation as printed

    Department of Medical Microbiology, Infectious Diseases and Infection Prevention, School for Nutrition and Translational Research in Metabolism, Maastricht University

    Department of Medical Microbiology, Infectious Diseases and Infection Prevention, School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands

  43. Maastricht University

    Affiliation as printed

    Department of Medical Microbiology, Infectious Diseases and Infection Prevention, School for Nutrition and Translational Research in Metabolism, Maastricht University

    Department of Medical Microbiology, Infectious Diseases and Infection Prevention, School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands

  44. National Institute for Public Health and the Environment

    Affiliation as printed

    Center for infectious disease control, Dutch National Institute for Public Health and the Environment

    Center for infectious disease control, Dutch National Institute for Public Health and the Environment, Bilthoven, the Netherlands

  45. National Institute for Public Health and the Environment

    Affiliation as printed

    Center for infectious disease control, Dutch National Institute for Public Health and the Environment

    Center for infectious disease control, Dutch National Institute for Public Health and the Environment, Bilthoven, the Netherlands

  46. National Institute for Public Health and the Environment

    Affiliation as printed

    Center for infectious disease control, Dutch National Institute for Public Health and the Environment

    Center for infectious disease control, Dutch National Institute for Public Health and the Environment, Bilthoven, the Netherlands

  47. Kırklareli University

    Affiliation as printed

    Department of Medical Microbiology, Faculty of Medicine, Kırklareli University

  48. Harran University

    Affiliation as printed

    Department of Genetics, Faculty of Veterinary Medicine, Harran University

  49. University of Birmingham

    Affiliation as printed

    Genomics Birmingham, Institute of Cancer & Genomic Sciences, University of Birmingham

    Genomics Birmingham, Institute of Cancer & Genomic Sciences, University of Birmingham, Birmingham, United Kingdom

  50. University of Birmingham

    Affiliation as printed

    Genomics Birmingham, Institute of Cancer & Genomic Sciences, University of Birmingham

    Genomics Birmingham, Institute of Cancer & Genomic Sciences, University of Birmingham, Birmingham, United Kingdom

  51. Quadram Institute · Earlham Institute

    Affiliation as printed

    Earlham Institute and Quadram Institute Bioscience

    Earlham Institute and Quadram Institute Bioscience, Norwich, United Kingdom

  52. Quadram Institute · Earlham Institute

    Affiliation as printed

    Earlham Institute and Quadram Institute Bioscience

    Earlham Institute and Quadram Institute Bioscience, Norwich, United Kingdom

  53. Medicines and Healthcare products Regulatory Agency

    Affiliation as printed

    Medicines and Healthcare Products Regulatory Agency

    Medicines and Healthcare Products Regulatory Agency, London, United Kingdom

  54. Medicines and Healthcare products Regulatory Agency

    Affiliation as printed

    Medicines and Healthcare Products Regulatory Agency

    Medicines and Healthcare Products Regulatory Agency, London, United Kingdom

  55. Medicines and Healthcare products Regulatory Agency

    Affiliation as printed

    Medicines and Healthcare Products Regulatory Agency

    Medicines and Healthcare Products Regulatory Agency, London, United Kingdom

  56. Imperial College London

    Affiliation as printed

    Imperial College London

    Imperial College London, London, United Kingdom

  57. Imperial College London

    Affiliation as printed

    Imperial College London

    Imperial College London, London, United Kingdom

  58. Imperial College London

    Affiliation as printed

    Imperial College London

    Imperial College London, London, United Kingdom

  59. Affiliation as printed

    AlphaBiomics Ltd

    AlphaBiomics Ltd., London, United Kingdom

  60. Affiliation as printed

    AlphaBiomics Ltd

    AlphaBiomics Ltd., London, United Kingdom

  61. Affiliation as printed

    AlphaBiomics Ltd

    AlphaBiomics Ltd., London, United Kingdom

  62. Source BioScience (United Kingdom)

    Affiliation as printed

    Source BioScience UK LTD

    Source BioScience UK LTD, Nottingham, United Kingdom

  63. Source BioScience (United Kingdom)

    Affiliation as printed

    Source BioScience UK LTD

    Source BioScience UK LTD, Nottingham, United Kingdom

  64. Quadram Institute

    Affiliation as printed

    Quadram Institute Bioscience-Gut Microbes and Health Research Programme

    Quadram Institute Bioscience-Gut Microbes and Health Research Programme, Norwich, United Kingdom

  65. Quadram Institute

    Affiliation as printed

    Quadram Institute Bioscience-Gut Microbes and Health Research Programme

    Quadram Institute Bioscience-Gut Microbes and Health Research Programme, Norwich, United Kingdom

  66. Quadram Institute

    Affiliation as printed

    Quadram Institute Bioscience-Gut Microbes and Health Research Programme

    Quadram Institute Bioscience-Gut Microbes and Health Research Programme, Norwich, United Kingdom

  67. Quadram Institute

    Affiliation as printed

    Quadram Institute Bioscience-Gut Microbes and Health Research Programme

    Quadram Institute Bioscience-Gut Microbes and Health Research Programme, Norwich, United Kingdom

  68. Quadram Institute

    Affiliation as printed

    Quadram Institute Bioscience-Gut Microbes and Health Research Programme

    Quadram Institute Bioscience-Gut Microbes and Health Research Programme, Norwich, United Kingdom

  69. National Institute of Standards and Technology

    Affiliation as printed

    National Institute of Standards and Technology

    National Institute of Standards and Technology, Gaithersburg, Maryland, USA

  70. National Institute of Standards and Technology

    Affiliation as printed

    National Institute of Standards and Technology

    National Institute of Standards and Technology, Gaithersburg, Maryland, USA

  71. National Institute of Standards and Technology

    Affiliation as printed

    National Institute of Standards and Technology

    National Institute of Standards and Technology, Gaithersburg, Maryland, USA

  72. National Institute of Standards and Technology

    Affiliation as printed

    National Institute of Standards and Technology

    National Institute of Standards and Technology, Gaithersburg, Maryland, USA

  73. National Institute of Standards and Technology

    Affiliation as printed

    National Institute of Standards and Technology

    National Institute of Standards and Technology, Gaithersburg, Maryland, USA

  74. National Institute of Standards and Technology

    Affiliation as printed

    National Institute of Standards and Technology

    National Institute of Standards and Technology, Gaithersburg, Maryland, USA

  75. Weill Cornell Medicine

    Affiliation as printed

    Department of Physiology and Biophysics, Weill Cornell Medicine

    Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York, USA

  76. Weill Cornell Medicine

    Affiliation as printed

    Department of Physiology and Biophysics, Weill Cornell Medicine

    Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York, USA

  77. Weill Cornell Medicine

    Affiliation as printed

    Department of Physiology and Biophysics, Weill Cornell Medicine

    Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York, USA

  78. Weill Cornell Medicine

    Affiliation as printed

    Department of Physiology and Biophysics, Weill Cornell Medicine

    Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York, USA

  79. Weill Cornell Medicine

    Affiliation as printed

    Department of Physiology and Biophysics, Weill Cornell Medicine

    Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York, USA

  80. Minnesota Medical Association

    Affiliation as printed

    Diversigen, Inc

    Diversigen, Inc., New Brighton, Minnesota, USA

  81. Minnesota Medical Association

    Affiliation as printed

    Diversigen, Inc

    Diversigen, Inc., New Brighton, Minnesota, USA

  82. Minnesota Medical Association

    Affiliation as printed

    Diversigen, Inc

    Diversigen, Inc., New Brighton, Minnesota, USA

  83. Minnesota Medical Association

    Affiliation as printed

    Diversigen, Inc

    Diversigen, Inc., New Brighton, Minnesota, USA

  84. Minnesota Medical Association

    Affiliation as printed

    Diversigen, Inc

    Diversigen, Inc., New Brighton, Minnesota, USA

  85. Minnesota Medical Association

    Affiliation as printed

    Diversigen, Inc

    Diversigen, Inc., New Brighton, Minnesota, USA

  86. Minnesota Medical Association

    Affiliation as printed

    Diversigen, Inc

    Diversigen, Inc., New Brighton, Minnesota, USA

  87. Illumina (United States)

    Affiliation as printed

    Illumina, Inc

    Illumina, Inc., San Diego, California, USA

  88. Illumina (United States)

    Affiliation as printed

    Illumina, Inc

    Illumina, Inc., San Diego, California, USA

  89. Illumina (United States)

    Affiliation as printed

    Illumina, Inc

    Illumina, Inc., San Diego, California, USA

Cited by 14 stored of 14

14 results

No patents citing this paper on Lens.org (checked 2026-10-11).

References 35