Evidence map›Paper›PMID 32108417›Full record

ArticleMolecular plant pathology2020

Genome-wide analyses of Liberibacter species provides insights into evolution, phylogenetic relationships, and virulence factors.

Shree P Thapa, Agustina De Francesco, Jessica Trinh, Fatta B Gurung, Zhiqian Pang, Georgios Vidalakis, Nian Wang, Veronica Ancona, Wenbo Ma, Gitta Coaker

Open access · goldAbstract read
In one paragraph

Article in Molecular plant pathology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
14.6field-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

51 citing papers in PubMed, 100 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. A secreted citrus protease cleaves an outer membrane protein of the Huanglongbing pathogen.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  6. Functional Analysis Identifies Multiple Effectors ofPlants (Basel, Switzerland) · 2026
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  9. Molecular Characterization of 'Microorganisms · 2025
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  10. Time-Course Gene Expression of 'Microorganisms · 2025
    Article
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  13. Review
  14. Review
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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 4 institutions in 1 country.

Shree P ThapaDepartment of Plant Pathology, University of California, Davis, CA, USA.
Agustina De FrancescoDepartment of Microbiology and Plant Pathology, University of California, Riverside, CA, USA.
Jessica TrinhDepartment of Microbiology and Plant Pathology, University of California, Riverside, CA, USA.
Fatta B GurungCitrus Center, Department of Agriculture, Agribusiness and Environmental Sciences, Texas A&M University-Kingsville, Weslaco, TX, USA.
Zhiqian PangCitrus Research and Education Center, Department of Microbiology and Cell Science, University of Florida, Lake Alfred, FL, USA.
Georgios VidalakisDepartment of Microbiology and Plant Pathology, University of California, Riverside, CA, USA.
Nian WangCitrus Research and Education Center, Department of Microbiology and Cell Science, University of Florida, Lake Alfred, FL, USA.ORCID 0000-0001-7743-0728
Veronica AnconaCitrus Center, Department of Agriculture, Agribusiness and Environmental Sciences, Texas A&M University-Kingsville, Weslaco, TX, USA.
Wenbo MaDepartment of Microbiology and Plant Pathology, University of California, Riverside, CA, USA.
Gitta CoakerDepartment of Plant Pathology, University of California, Davis, CA, USA.ORCID 0000-0003-0899-2449
University of California, Riverside · USFlorida Department of Citrus · USPlant (United States) · USTexas A&M University – Kingsville · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

'Candidatus Liberibacter' species are insect-transmitted, phloem-limited α-Proteobacteria in the order of Rhizobiales. The citrus industry is facing significant challenges due to huanglongbing, associated with infection from 'Candidatus Liberibacter asiaticus' (Las). In order to gain greater insight into 'Ca. Liberibacter' biology and genetic diversity, we have performed genome sequencing and comparative analyses of diverse 'Ca. Liberibacter' species, including those that can infect citrus. Our phylogenetic analysis differentiates 'Ca. Liberibacter' species and Rhizobiales in separate clades and suggests stepwise evolution from a common ancestor splitting first into nonpathogenic Liberibacter crescens followed by diversification of pathogenic 'Ca. Liberibacter' species. Further analysis of Las genomes from different geographical locations revealed diversity among isolates from the United States. Our phylogenetic study also indicates multiple Las introduction events in California and spread of the pathogen from Florida to Texas. Texan Las isolates were closely related, while Florida and Asian isolates exhibited the most genetic variation. We have identified conserved Sec translocon (SEC)-dependent effectors likely involved in bacterial survival and virulence of Las and analysed their expression in their plant host (citrus) and insect vector (Diaphorina citri). Individual SEC-dependent effectors exhibited differential expression patterns between host and vector, indicating that Las uses its effector repertoire to differentially modulate diverse organisms. Collectively, this work provides insights into the evolution of 'Ca. Liberibacter' species, the introduction of Las in the United States and identifies promising Las targets for disease management.

Indexed as

CitrusGenome-Wide Association StudyPhylogenyPlant DiseasesRhizobiaceae‘Candidatus Liberibacter’ sp.citrus greening diseaseHLBhuanglongbingphylogenomicsSEC effector

Identifiers

PMID32108417
PMCPMC7170780
OpenAlexW3007458957

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.