Evidence map›Paper›PMID 28769883›Full record

ArticleFrontiers in microbiology2017

A Case Study into Microbial Genome Assembly Gap Sequences and Finishing Strategies.

Sagar M Utturkar, Dawn M Klingeman, Richard A Hurt, Steven D Brown

Open access · goldAbstract read
In one paragraph

Article in Frontiers in microbiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.5field-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

20 citing papers in PubMed, 38 citations in OpenAlex.

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  11. Frontiers in bioengineering and biotechnology · 2022
    Article
  12. Review
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  14. TheMicroorganisms · 2020
    Article
  15. Article
  16. Article
  17. Polyglutamine Repeats in Viruses.Molecular neurobiology · 2019
    Review
  18. Improved genome ofPeerJ · 2019
    Article
  19. Article
  20. 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

4 authors at 2 institutions in 1 country.

Sagar M UtturkarGraduate School of Genome Science and Technology, University of TennesseeKnoxville, TN, United States.
Dawn M KlingemanBiosciences Division, Oak Ridge National LaboratoryOak Ridge, TN, United States.
Richard A HurtBiosciences Division, Oak Ridge National LaboratoryOak Ridge, TN, United States.
Steven D BrownGraduate School of Genome Science and Technology, University of TennesseeKnoxville, TN, United States.
Oak Ridge National Laboratory · USUniversity of Tennessee at Knoxville · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study characterized regions of DNA which remained unassembled by either PacBio and Illumina sequencing technologies for seven bacterial genomes. Two genomes were manually finished using bioinformatics and PCR/Sanger sequencing approaches and regions not assembled by automated software were analyzed. Gaps present within Illumina assemblies mostly correspond to repetitive DNA regions such as multiple rRNA operon sequences. PacBio gap sequences were evaluated for several properties such as GC content, read coverage, gap length, ability to form strong secondary structures, and corresponding annotations. Our hypothesis that strong secondary DNA structures blocked DNA polymerases and contributed to gap sequences was not accepted. PacBio assemblies had few limitations overall and gaps were explained as cumulative effect of lower than average sequence coverage and repetitive sequences at contig termini. An important aspect of the present study is the compilation of biological features that interfered with assembly and included active transposons, multiple plasmid sequences, phage DNA integration, and large sequence duplication. Our targeted genome finishing approach and systematic evaluation of the unassembled DNA will be useful for others looking to close, finish, and polish microbial genome sequences.

Indexed as

circlatorgenome assemblyIlluminanext-generation sequencing (NGS)PacBioPilonrepetitive DNA

Identifiers

PMID28769883
PMCPMC5513972
OpenAlexW2738891164

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.