Cited by 1,314Gut microbiota and healthGenomics and Phylogenetic StudiesMicrobial Community Ecology and Physiology

A new genomic blueprint of the human gut microbiota

Open access
Almeida, Alexandre, Mitchell, Alex L., Boland, Miguel, Forster, Samuel C., Gloor, Gregory B., Tarkowska, Aleksandra, Lawley, Trevor D., Finn, Robert D.·2019·Nature

Abstract

The composition of the human gut microbiota is linked to health and disease, but knowledge of individual microbial species is needed to decipher their biological roles. Despite extensive culturing and sequencing efforts, the complete bacterial repertoire of the human gut microbiota remains undefined. Here we identify 1,952 uncultured candidate bacterial species by reconstructing 92,143 metagenome-assembled genomes from 11,850 human gut microbiomes. These uncultured genomes substantially expand the known species repertoire of the collective human gut microbiota, with a 281% increase in phylogenetic diversity. Although the newly identified species are less prevalent in well-studied populations compared to reference isolate genomes, they improve classification of understudied African and South American samples by more than 200%. These candidate species encode hundreds of newly identified biosynthetic gene clusters and possess a distinctive functional capacity that might explain their elusive nature. Our work expands the known diversity of uncultured gut bacteria, which provides unprecedented resolution for taxonomic and functional characterization of the intestinal microbiota.

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  • Metagenomic assembly can partially mitigate the underrepresentation of non-westernized microbiome members in genomic catalogs.

    “Recent efforts showed that metagenomic assembly can partially mitigate this problem,23,25,33,34”
  • Microbiome members of individuals from non-westernized populations are underrepresented by current cultivation-based genomic catalogs, causing metagenomic profiling to miss large fractions of microbial diversity.

    “Microbiome members of individuals from non-westernized populations are particularly underrepresented by current cultivation-based genomic catalogs causing metagenomic profiling approaches to miss large fractions of the microbial diversity in the samples.”

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Authors
Almeida, A., Mitchell, A. L., Boland, M., Forster, S. C., Gloor, G. B., Tarkowska, A., Lawley, T. D., & Finn, R. D.
Affiliations
  • European Bioinformatics Institute (GB)
  • Wellcome Sanger Institute (GB)
  • Western University (CA)
Corresponding author
  • Almeida, Alexandre
  • Finn, Robert D.
Venue
Nature
Published
2019-02-11
Volume
568
Issue
7753
Pages
499-504
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2913972921
Cited by
1,314
References
82
Citations by year
2026: 96 · 2025: 144 · 2024: 169 · 2023: 164 · 2022: 215 · 2021: 253 · 2020: 200 · 2019: 67 · 2017: 1 · 2013: 1
FWCI
62.28
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Monash University Research Portal (Monash University) (submittedVersion, other-oa)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Wellcome Trust (098051)
  • European Molecular Biology Laboratory
  • European Commission (HORIZON2020, 676559)
  • State Government of Victoria
  • Directorate for Biological Sciences
  • Medical Research Council (098051)
  • Biotechnology and Biological Sciences Research Council (BB/N018354/1)
  • National Health and Medical Research Council (1141564, 1091097)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Physical Sciences › Environmental Science › Ecology › Microbial Community Ecology and Physiology
Keywords
human gut microbiome, metagenome-assembled genomes, bacterial diversity, phylogenetic diversity, biosynthetic gene clusters, microbial taxonomy
MeSH terms
Gastrointestinal Microbiome, Bacteria, Multigene Family, Humans, Phylogeny, Species Specificity, Genome, Bacterial, Genomics, Metagenome

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