Evidence map›Paper›PMID 27190719›Full record

ArticlePeerJ2016

Genome-scale investigation of phenotypically distinct but nearly clonal Trichoderma strains.

Claudia Lange, Richard J Weld, Murray P Cox, Rosie E Bradshaw, Kirstin L McLean, Alison Stewart, Johanna M Steyaert

Open access · goldAbstract read
In one paragraph

Article in PeerJ, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.4field-weighted citation impact, top 12% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Molecular Tools for MonitoringFrontiers in microbiology · 2018
    Review
  3. 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 4 institutions in 1 country.

Claudia LangeBio-Protection Research Centre, Lincoln University , Lincoln , New Zealand.
Richard J WeldBio-Protection Research Centre, Lincoln University, Lincoln, New Zealand; Lincoln Agritech Limited, Lincoln University, Lincoln, New Zealand.
Murray P CoxBio-Protection Research Centre, Lincoln University, Lincoln, New Zealand; Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand.
Rosie E BradshawBio-Protection Research Centre, Lincoln University, Lincoln, New Zealand; Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand.
Kirstin L McLeanBio-Protection Research Centre, Lincoln University , Lincoln , New Zealand.
Alison StewartForest Science, Scion , Rotorua , New Zealand.
Johanna M SteyaertBio-Protection Research Centre, Lincoln University , Lincoln , New Zealand.
Lincoln University · NZMassey University · NZLincoln Agritech (New Zealand) · NZScion · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biological control agents (BCA) are beneficial organisms that are applied to protect plants from pests. Many fungi of the genus Trichoderma are successful BCAs but the underlying mechanisms are not yet fully understood. Trichoderma cf. atroviride strain LU132 is a remarkably effective BCA compared to T. cf. atroviride strain LU140 but these strains were found to be highly similar at the DNA sequence level. This unusual combination of phenotypic variability and high DNA sequence similarity between separately isolated strains prompted us to undertake a genome comparison study in order to identify DNA polymorphisms. We further investigated if the polymorphisms had functional effects on the phenotypes. The two strains were clearly identified as individuals, exhibiting different growth rates, conidiation and metabolism. Superior pathogen control demonstrated by LU132 depended on its faster growth, which is a prerequisite for successful distribution and competition. Genome sequencing identified only one non-synonymous single nucleotide polymorphism (SNP) between the strains. Based on this SNP, we successfully designed and validated an RFLP protocol that can be used to differentiate LU132 from LU140 and other Trichoderma strains. This SNP changed the amino acid sequence of SERF, encoded by the previously undescribed single copy gene "small EDRK-rich factor" (serf). A deletion of serf in the two strains did not lead to identical phenotypes, suggesting that, in addition to the single functional SNP between the nearly clonal Trichoderma cf. atroviride strains, other non-genomic factors contribute to their phenotypic variation. This finding is significant as it shows that genomics is an extremely useful but not exhaustive tool for the study of biocontrol complexity and for strain typing.

Indexed as

BiocontrolDiscordant phenotypesGenomicsMolecular markerSingle nucleotide polymorphism (SNP)Small ERDK-rich factor (serf)Trichoderma cf. atroviride

Identifiers

PMID27190719
PMCPMC4868595
OpenAlexW2353739712

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.