Evidence map›Paper›PMID 31937678›Full record

ArticlemSystems2020

Consistent Metagenome-Derived Metrics Verify and Delineate Bacterial Species Boundaries.

Matthew R Olm, Alexander Crits-Christoph, Spencer Diamond, Adi Lavy, Paula B Matheus Carnevali, Jillian F Banfield

Open access · goldAbstract read
In one paragraph

Article in mSystems, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 137 papers.

0numbers the graph read from it
0cells of the map it votes in
137citing papers in PubMed
12.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

137 citing papers in PubMed, 237 citations in OpenAlex.

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  4. Phylogenetically diverse MucoralesMicrobial genomics · 2026
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  14. Leveraging FracMinHash Containment for GenomicbioRxiv : the preprint server for biology · 2025
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  17. The hidden life ofApplied and environmental microbiology · 2025
    Article
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  20. Article

77 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Matthew R OlmDepartment of Earth and Planetary Science, University of California, Berkeley, Berkeley, California, USA.
Alexander Crits-ChristophDepartment of Plant and Microbial Biology, University of California, Berkeley, Berkeley, California, USA.
Spencer DiamondDepartment of Earth and Planetary Science, University of California, Berkeley, Berkeley, California, USA.
Adi LavyDepartment of Earth and Planetary Science, University of California, Berkeley, Berkeley, California, USA.
Paula B Matheus CarnevaliDepartment of Earth and Planetary Science, University of California, Berkeley, Berkeley, California, USA.
Jillian F BanfieldDepartment of Earth and Planetary Science, University of California, Berkeley, Berkeley, California, USA jbanfield@berkeley.edu.
University of California, Berkeley · USLawrence Berkeley National Laboratory · USPlanetary Science Institute · US

Funding

Population Genomic Analysis of Gut Microbial Colonization in Premature InfantsR01AI092531 · NIAID · UNIVERSITY OF CALIFORNIA BERKELEY · PI Jillian Banfield, Michael Morowitz · 2011 to 2026
$11.3M
NIAID NIH HHS R01 AI092531
6 · The paper itself

Abstract

Longstanding questions relate to the existence of naturally distinct bacterial species and genetic approaches to distinguish them. Bacterial genomes in public databases form distinct groups, but these databases are subject to isolation and deposition biases. To avoid these biases, we compared 5,203 bacterial genomes from 1,457 environmental metagenomic samples to test for distinct clouds of diversity and evaluated metrics that could be used to define the species boundary. Bacterial genomes from the human gut, soil, and the ocean all exhibited gaps in whole-genome average nucleotide identities (ANI) near the previously suggested species threshold of 95% ANI. While genome-wide ratios of nonsynonymous and synonymous nucleotide differences (

Indexed as

bacterial speciesbioinformaticsmetagenomicsmicrobial geneticsspecies

Identifiers

PMID31937678
PMCPMC6967389
OpenAlexW2999728398

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.