Evidence map›Paper›PMID 23968645›Full record

ArticleJournal of microbiological methods2013

Minimization of chloroplast contamination in 16S rRNA gene pyrosequencing of insect herbivore bacterial communities.

Alissa S Hanshew, Charles J Mason, Kenneth F Raffa, Cameron R Currie

Open access · greenAbstract read
In one paragraph

Article in Journal of microbiological methods, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 115 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
115citing papers in PubMed, 1 pooled it
10.6field-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

115 citing papers in PubMed, 1 synthesis or guideline pooled it, 235 citations in OpenAlex.

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55 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

4 authors at 1 institution in 1 country.

Alissa S HanshewDepartment of Bacteriology, 6145 Microbial Sciences Building, 1550 Linden Dr, University of Wisconsin-Madison, Madison, WI 53706, United States. Electronic address: hanshew@wisc.edu.
Charles J Mason
Kenneth F Raffa
Cameron R Currie
University of Wisconsin–Madison · US

Funding

GRADUATE TRAINING IN MOLECULAR BIOSCIENCEST32GM007215 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI HULL, CHRISTINA M · 1985 to 2018
$22.5M
NIGMS NIH HHS T32 GM007215NIGMS NIH HHS T32 GM07215-37
6 · The paper itself

Abstract

Chloroplast sequence contamination in 16S ribosomal RNA gene (16S) analyses can be particularly problematic when sampling microbial communities in plants and folivorous arthropods. We previously encountered high levels of plastid contamination in herbivorous insect samples when we used the predominant 454 pyrosequencing 16S methodologies described in the literature. 799F, a primer previously found to exclude chloroplast sequences, was modified to enhance its efficacy, and we describe, in detail, our methodology throughout amplicon pyrosequencing. Thirteen versions of 799F were assessed for the exclusion of chloroplast sequences from our samples. We found that a shift in the mismatch between 799F and chloroplast 16S resulted in significant reduction of chloroplast reads. Our results also indicate that amplifying sequences from environmental samples in a two-step PCR process, with the addition of the multiplex identifiers and 454 adapters in a second round of PCR, further improved primer specificity. Primers that included 3' phosphorothioate bonds, which were designed to block primer degradation, did not amplify consistently across samples. The different forward primers do not appear to bias the bacterial communities detected. We provide a methodological framework for reducing chloroplast reads in high-throughput sequencing data sets that can be applied to a number of environmental samples and sequencing techniques.

Indexed as

AnimalsBacteriaBase SequenceDNA, BacterialDNA, ChloroplastDNA PrimersHerbivoryInsectaMolecular Sequence DataRNA, Ribosomal, 16SSequence AlignmentSequence Analysis, DNADNA, BacterialDNA, ChloroplastDNA PrimersRNA, Ribosomal, 16S16S rRNA Gene454 PyrosequencingChloroplastInsectSymbiosis

Identifiers

PMID23968645
PMCPMC4133986
OpenAlexW2152205047

What OpenQuestion holds

Textmetadata
LicenceTDM
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.