Evidence map›Paper›PMID 30808697›Full record

ArticlemBio2019

Large Circular Plasmids from Groundwater Plasmidomes Span Multiple Incompatibility Groups and Are Enriched in Multimetal Resistance Genes.

Ankita Kothari, Yu-Wei Wu, John-Marc Chandonia, Marimikel Charrier, Lara Rajeev, Andrea M Rocha, Dominique C Joyner, Terry C Hazen, Steven W Singer, Aindrila Mukhopadhyay

Open access · goldAbstract read
In one paragraph

Article in mBio, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

24 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
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  3. Megaplasmids associate withbioRxiv : the preprint server for biology · 2025
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  7. Frontiers in microbiology · 2025
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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

10 authors at 3 institutions in 2 countries.

Ankita KothariBiological Systems and Engineering, Lawrence Berkeley National Laboratory, Berkeley, California, USA.ORCID 0000-0002-6241-5821
Yu-Wei WuBiological Systems and Engineering, Lawrence Berkeley National Laboratory, Berkeley, California, USA.
John-Marc ChandoniaEnvironmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA.ORCID 0000-0002-5153-9079
Marimikel CharrierBiological Systems and Engineering, Lawrence Berkeley National Laboratory, Berkeley, California, USA.ORCID 0000-0003-4264-5985
Lara RajeevBiological Systems and Engineering, Lawrence Berkeley National Laboratory, Berkeley, California, USA.
Andrea M RochaBiosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA.
Dominique C JoynerDepartment of Civil and Environmental Engineering, University of Tennessee, Knoxville, Tennessee, USA.
Terry C HazenBiosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA.ORCID 0000-0002-2536-9993
Steven W SingerBiological Systems and Engineering, Lawrence Berkeley National Laboratory, Berkeley, California, USA.
Aindrila MukhopadhyayBiological Systems and Engineering, Lawrence Berkeley National Laboratory, Berkeley, California, USA amukhopadhyay@lbl.gov.ORCID 0000-0002-6513-7425
Lawrence Berkeley National Laboratory · USOak Ridge National Laboratory · USUniversity of Tennessee at Knoxville · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Naturally occurring plasmids constitute a major category of mobile genetic elements responsible for harboring and transferring genes important in survival and fitness. A targeted evaluation of plasmidomes can reveal unique adaptations required by microbial communities. We developed a model system to optimize plasmid DNA isolation procedures targeted to groundwater samples which are typically characterized by low cell density (and likely variations in the plasmid size and copy numbers). The optimized method resulted in successful identification of several hundred circular plasmids, including some large plasmids (11 plasmids more than 50 kb in size, with the largest being 1.7 Mb in size). Several interesting observations were made from the analysis of plasmid DNA isolated in this study. The plasmid pool (plasmidome) was more conserved than the corresponding microbiome distribution (16S rRNA based). The circular plasmids were diverse as represented by the presence of seven plasmid incompatibility groups. The genes carried on these groundwater plasmids were highly enriched in metal resistance. Results from this study confirmed that traits such as metal, antibiotic, and phage resistance along with toxin-antitoxin systems are encoded on abundant circular plasmids, all of which could confer novel and advantageous traits to their hosts. This study confirms the ecological role of the plasmidome in maintaining the latent capacity of a microbiome, enabling rapid adaptation to environmental stresses.

Indexed as

Drug Resistance, BacterialGenes, BacterialBacteriaCluster AnalysisDNA, RibosomalGenetic VariationGroundwaterMetalsPhylogenyPlasmidsRNA, Ribosomal, 16SSequence Analysis, DNADNA, RibosomalMetalsRNA, Ribosomal, 16Santibiotic resistancemermercury resistancemetal resistancenative plasmidsplasmidome

Identifiers

PMID30808697
PMCPMC6391923
OpenAlexW2916361346

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.