Evidence map›Paper›PMID 36906688›Full record

ArticleScientific reports2023

Mock community as an in situ positive control for amplicon sequencing of microbiotas from the same ecosystem.

Giulio Galla, Nadine Praeg, Filippo Colla, Theresa Rzehak, Paul Illmer, Julia Seeber, Heidi Christine Hauffe

Open access · goldFull text read
In one paragraph

Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

8 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Design, processing, and modeling for longitudinal multiomics microbiome data.Frontiers in cellular and infection microbiology · 2026
    Review
  3. Biodiversity in mountain soils above the treeline.Biological reviews of the Cambridge Philosophical Society · 2025
    Review
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
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

7 authors at 3 institutions in 2 countries.

Giulio GallaConservation Genomics Research Unit, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy. giulio.galla@fmach.it.
Nadine PraegDepartment of Microbiology, Universität Innsbruck, Innsbruck, Austria.
Filippo CollaDepartment of Microbiology, Universität Innsbruck, Innsbruck, Austria.
Theresa RzehakDepartment of Microbiology, Universität Innsbruck, Innsbruck, Austria.
Paul IllmerDepartment of Microbiology, Universität Innsbruck, Innsbruck, Austria.
Julia SeeberInstitute for Alpine Environment, EURAC Research, Bozen, Italy.
Heidi Christine HauffeConservation Genomics Research Unit, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy.
Universität Innsbruck · ATFondazione Edmund Mach · ITEurac Research · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Metataxonomy has become the standard for characterizing the diversity and composition of microbial communities associated with multicellular organisms and their environment. Currently available protocols for metataxonomy assume a uniform DNA extraction, amplification and sequencing efficiency for all sample types and taxa. It has been suggested that the addition of a mock community (MC) to biological samples before the DNA extraction step could aid identification of technical biases during processing and support direct comparisons of microbiota composition, but the impact of MC on diversity estimates of samples is unknown. Here, large and small aliquots of pulverized bovine fecal samples were extracted with no, low or high doses of MC, characterized using standard Illumina technology for metataxonomics, and analysed with custom bioinformatic pipelines. We demonstrated that sample diversity estimates were distorted only if MC dose was high compared to sample mass (i.e. when MC > 10% of sample reads). We also showed that MC was an informative in situ positive control, permitting an estimation of the sample 16S copy number, and detecting sample outliers. We tested this approach on a range of sample types from a terrestrial ecosystem, including rhizosphere soil, whole invertebrates, and wild vertebrate fecal samples, and discuss possible clinical applications.

Indexed as

High-Throughput Nucleotide SequencingMicrobiotaAnimalsBacteriaCattleDNA, BacterialRNA, Ribosomal, 16SSequence Analysis, DNADNA, BacterialRNA, Ribosomal, 16S

Identifiers

PMID36906688
PMCPMC10008532
OpenAlexW4323971821

What OpenQuestion holds

Textfull text, public
LicenceCC BY
measurements read97
table measurements read1
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.