Evidence map›Paper›PMID 20084095›Full record

ArticlePLoS biology2010

Experimental evolution of a plant pathogen into a legume symbiont.

Marta Marchetti, Delphine Capela, Michelle Glew, Stéphane Cruveiller, Béatrice Chane-Woon-Ming, Carine Gris, Ton Timmers, Véréna Poinsot, Luz B Gilbert, Philipp Heeb and 3 more

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed, 1 pooled it
19.5field-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

74 citing papers in PubMed, 1 synthesis or guideline pooled it, 183 citations in OpenAlex.

  1. Guidelines for the description of rhizobial symbiovars.International journal of systematic and evolutionary microbiology · 2024
    Guideline
  2. Post-Release Changes of the Goat's Rue Rhizobia (International journal of molecular sciences · 2026
    Article
  3. Article
  4. Review
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  12. Article
  13. Article
  14. Legumes Regulate Symbiosis with Rhizobia via Their Innate Immune System.International journal of molecular sciences · 2023
    Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Why are rhizobial symbiosis genes mobile?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Article

14 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

13 authors at 5 institutions in 1 country.

Marta MarchettiLaboratoire des Interactions Plantes Micro-organismes (LIPM), UMR CNRS-INRA 2594/441, Castanet-Tolosan, France.
Delphine Capela
Michelle Glew
Stéphane Cruveiller
Béatrice Chane-Woon-Ming
Carine Gris
Ton Timmers
Véréna Poinsot
Luz B Gilbert
Philipp Heeb
Claudine Médigue
Jacques Batut
Catherine Masson-Boivin
Laboratoire des Interactions Plantes Micro-Organismes · FRCentre National de la Recherche Scientifique · FRGénomique Métabolique du Genoscope · FRUniversité d'Évry Val-d'Essonne · FRUniversité Toulouse III - Paul Sabatier · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Rhizobia are phylogenetically disparate alpha- and beta-proteobacteria that have achieved the environmentally essential function of fixing atmospheric nitrogen in symbiosis with legumes. Ample evidence indicates that horizontal transfer of symbiotic plasmids/islands has played a crucial role in rhizobia evolution. However, adaptive mechanisms that allow the recipient genomes to express symbiotic traits are unknown. Here, we report on the experimental evolution of a pathogenic Ralstonia solanacearum chimera carrying the symbiotic plasmid of the rhizobium Cupriavidus taiwanensis into Mimosa nodulating and infecting symbionts. Two types of adaptive mutations in the hrpG-controlled virulence pathway of R. solanacearum were identified that are crucial for the transition from pathogenicity towards mutualism. Inactivation of the hrcV structural gene of the type III secretion system allowed nodulation and early infection to take place, whereas inactivation of the master virulence regulator hrpG allowed intracellular infection of nodule cells. Our findings predict that natural selection of adaptive changes in the legume environment following horizontal transfer has been a major driving force in rhizobia evolution and diversification and show the potential of experimental evolution to decipher the mechanisms leading to symbiosis.

Indexed as

Adaptation, BiologicalChimeraDirected Molecular EvolutionFabaceaeGene Transfer, HorizontalNitrogen FixationPlant Root NodulationPolymorphism, Single NucleotideRhizobiumSymbiosis

Identifiers

PMID20084095
PMCPMC2796954
OpenAlexW1989580422

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.