Evidence map›Paper›PMID 27503598›Full record

ArticleMolecular plant pathology2017

Signatures of selection and host-adapted gene expression of the Phytophthora infestans RNA silencing suppressor PSR2.

Sophie de Vries, Janina K von Dahlen, Constanze Uhlmann, Anika Schnake, Thorsten Kloesges, Laura E Rose

Open access · bronzeAbstract read
In one paragraph

Article in Molecular plant pathology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
8.9field-weighted citation impact, top 3% 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

18 citing papers in PubMed, 28 citations in OpenAlex.

  1. Review
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  11. Structural analysis ofProceedings of the National Academy of Sciences of the United States of America · 2019
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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

6 authors at 2 institutions in 1 country.

Sophie de VriesInstitute of Population Genetics, Heinrich-Heine University Duesseldorf, Duesseldorf, 40225, Germany.ORCID 0000-0002-5267-8935
Janina K von DahlenInstitute of Population Genetics, Heinrich-Heine University Duesseldorf, Duesseldorf, 40225, Germany.
Constanze UhlmannInstitute of Population Genetics, Heinrich-Heine University Duesseldorf, Duesseldorf, 40225, Germany.
Anika SchnakeInstitute of Population Genetics, Heinrich-Heine University Duesseldorf, Duesseldorf, 40225, Germany.
Thorsten KloesgesInstitute of Population Genetics, Heinrich-Heine University Duesseldorf, Duesseldorf, 40225, Germany.
Laura E RoseInstitute of Population Genetics, Heinrich-Heine University Duesseldorf, Duesseldorf, 40225, Germany.
Heinrich Heine University Düsseldorf · DECluster of Excellence on Plant Sciences · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Phytophthora infestans is a devastating pathogen in agricultural systems. Recently, an RNA silencing suppressor (PSR2, 'Phytophthora suppressor of RNA silencing 2') has been described in P. infestans. PSR2 has been shown to increase the virulence of Phytophthora pathogens on their hosts. This gene is one of the few effectors present in many economically important Phytophthora species. In this study, we investigated: (i) the evolutionary history of PSR2 within and between species of Phytophthora; and (ii) the interaction between sequence variation, gene expression and virulence. In P. infestans, the highest PiPSR2 expression was correlated with decreased symptom expression. The highest gene expression was observed in the biotrophic phase of the pathogen, suggesting that PSR2 is important during early infection. Protein sequence conservation was negatively correlated with host range, suggesting host range as a driver of PSR2 evolution. Within species, we detected elevated amino acid variation, as observed for other effectors; however, the frequency spectrum of the mutations was inconsistent with strong balancing selection. This evolutionary pattern may be related to the conservation of the host target(s) of PSR2 and the absence of known corresponding R genes. In summary, our study indicates that PSR2 is a conserved effector that acts as a master switch to modify plant gene regulation early during infection for the pathogen's benefit. The conservation of PSR2 and its important role in virulence make it a promising target for pathogen management.

Indexed as

Gene Expression ProfilingGene Expression RegulationGenes, SuppressorRNA InterferenceAmino AcidsHost-Pathogen InteractionsHost SpecificityPhytophthora infestansPlant DiseasesPolymorphism, GeneticProtein Structure, SecondarySolanumSpecies SpecificityAmino Acidseffectorsevolutionoomycetessmall RNA silencingtomato

Identifiers

PMID27503598
PMCPMC6638260
OpenAlexW2502132145

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LicenceCC BY-NC
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Registered trials

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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.