Evidence map›Paper›PMID 29382896›Full record

ArticleScientific reports2018

Extracellular DNA as a genetic recorder of microbial diversity in benthic deep-sea ecosystems.

C Corinaldesi, M Tangherlini, E Manea, A Dell'Anno

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
7.8field-weighted citation impact, top 2% 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

15 citing papers in PubMed, 56 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

C CorinaldesiDipartimento di Scienze e Ingegneria della Materia, dell'Ambiente ed Urbanistica, Polytechnic University of Marche, Via Brecce Bianche, 60131, Ancona, Italy. c.corinaldesi@univpm.it.ORCID http://orcid.org/0000-0002-2981-541X
M TangherliniDipartimento di Scienze della Vita e dell'Ambiente, Polytechnic University of Marche, Via Brecce Bianche, 60131, Ancona, Italy.
E ManeaDipartimento di Scienze della Vita e dell'Ambiente, Polytechnic University of Marche, Via Brecce Bianche, 60131, Ancona, Italy.
A Dell'AnnoDipartimento di Scienze della Vita e dell'Ambiente, Polytechnic University of Marche, Via Brecce Bianche, 60131, Ancona, Italy.
Marche Polytechnic University · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Extracellular DNA in deep-sea sediments represents a major repository of genes, which previously belonged to living organisms. However, the extent to which these extracellular genes influence current estimates of prokaryotic biodiversity is unknown. We investigated the abundance and diversity of 16S rDNA sequences contained within extracellular DNA from continental margins of different biogeographic regions. We also compared the taxonomic composition of microbial assemblages through the analysis of extracellular DNA and DNA associated with living cells. 16S rDNA contained in the extracellular DNA pool contributed up to 50% of the total 16S rDNA copy number determined in the sediments. Ca. 4% of extracellular Operational Taxonomic Units (OTUs) were shared among the different biogeographic regions revealing the presence of a core of preserved OTUs. A higher fraction of OTUs was exclusive of each region potentially due to its geographic and thermohaline characteristics. Ca. one third of the OTUs identified in the extracellular DNA were absent from living prokaryotic assemblages, possibly representing the signatures of past assemblages. Our findings expand the knowledge of the contribution of extracellular microbial sequences to current estimates of prokaryotic diversity obtained through the analyses of "environmental DNA", and open new perspectives for understanding microbial successions in benthic ecosystems.

Indexed as

BiodiversityDNA, RibosomalEcosystemGeologic SedimentsProkaryotic CellsSeawaterSequence Analysis, DNADNA, Ribosomal

Identifiers

PMID29382896
PMCPMC5789842
OpenAlexW2805691916

What OpenQuestion holds

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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.