Evidence map›Paper›PMID 19485766›Full record

ReviewDNA and cell biology2009

Coevolution in Rhizobium-legume symbiosis?

Esperanza Martínez-Romero

Abstract readReview
PubMed Publisher
In one paragraph

Review in DNA and cell biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
13.9field-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

36 citing papers in PubMed, 124 citations in OpenAlex.

  1. Exploring symbiotic legume-rhizobia relationships across tropical species.World journal of microbiology & biotechnology · 2026
    Article
  2. Review
  3. OftenFrontiers in microbiology · 2025
    Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Evolution of division of labour in mutualistic symbiosis.Proceedings. Biological sciences · 2020
    Article
  12. Article
  13. Article
  14. PhylogenomicFrontiers in microbiology · 2019
    Article
  15. Article
  16. Review
  17. Is there sufficientApplied soil ecology : a section of Agriculture, Ecosystems & Environment · 2017
    Article
  18. Review
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

1 author at 1 institution in 1 country.

Esperanza Martínez-RomeroCenter for Genomic Sciences, National Autonomous University of Mexico, Cuernavaca, Mexico. emartine@ccg.unam.mx
Universidad Nacional Autónoma de México · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Legume nodules, specialized structures for nitrogen fixation, are probably the result of coevolution of plants and ancestral rhizobia. Among the evolutionary processes leading to legume radiation and divergence, coevolution with rhizobia might have occurred. Alternatively, bacteria could have been constantly selected by plants, with bacteria slightly influencing plant evolution (required to fulfill the criteria for a coevolutionary hypothesis). Evidence of bacterial effects on plant evolution is scarce but being searched for. Bacterial genetic plasticity may be indicative of the large capacity of Rhizobium to adapt to legumes. Events such as symbiotic replacement, easy recruitment of symbiotic bacteria by legume plants, and lateral transfer of symbiotic genes seem to erase the coevolutionary or selected relationships in rhizobial-legume symbiosis. In particular, the hypotheses proposed are (1) Rhizobium replaced Bradyrhizobium in a few hosts of the Phaseoleae tribe, Phaseolus vulgaris and P. coccineus; (2) Rhizobium etli as a species did not coevolve with bean; and (3) beta-Proteobacteria replaced alpha-Proteobacteria in South American mimosas. Novel results on symbiosis suggest a more complex evolutionary process for nodulation that may include multiple organisms, such as mycorrhiza, nematodes, and other bacteria in addition to rhizobia.

Indexed as

Evolution, MolecularFabaceaeGenetic VariationGene Transfer, HorizontalHost-Pathogen InteractionsRhizobiumRoot Nodules, PlantSpecies SpecificitySymbiosis

Identifiers

PMID19485766
OpenAlexW2077174509

What OpenQuestion holds

Textmetadata
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.