Evidence map›Paper›PMID 26467244›Full record

ArticleMicrobial ecology2016

Epidemic Spread of Symbiotic and Non-Symbiotic Bradyrhizobium Genotypes Across California.

A C Hollowell, J U Regus, K A Gano, R Bantay, D Centeno, J Pham, J Y Lyu, D Moore, A Bernardo, G Lopez and 4 more

Abstract read
PubMed Publisher
In one paragraph

Article in Microbial ecology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guidelines for the description of rhizobial symbiovars.International journal of systematic and evolutionary microbiology · 2024
    Guideline
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Symbiotic NMicrobial ecology · 2018
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. 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

14 authors.

A C HollowellDepartment of Biology, University of California, Riverside, CA, 92521, USA.
J U RegusDepartment of Biology, University of California, Riverside, CA, 92521, USA.
K A GanoDepartment of Biology, University of California, Riverside, CA, 92521, USA.
R BantayDepartment of Biology, University of California, Riverside, CA, 92521, USA.
D CentenoDepartment of Biology, University of California, Riverside, CA, 92521, USA.
J PhamDepartment of Biology, University of California, Riverside, CA, 92521, USA.
J Y LyuDepartment of Biology, University of California, Riverside, CA, 92521, USA.
D MooreDepartment of Biology, University of California, Riverside, CA, 92521, USA.
A BernardoDepartment of Biology, University of California, Riverside, CA, 92521, USA.
G LopezDepartment of Biology, University of California, Riverside, CA, 92521, USA.
A PatilDepartment of Biology, University of California, Riverside, CA, 92521, USA.
S PatelDepartment of Biology, University of California, Riverside, CA, 92521, USA.
Y LiiDepartment of Biology, University of California, Riverside, CA, 92521, USA.
J L SachsDepartment of Biology, University of California, Riverside, CA, 92521, USA. joels@ucr.edu.

Funding

Acquisition of a Scalable Storage Cluster for Data Intensive NIH ResearchS10OD016290 · OD · UNIVERSITY OF CALIFORNIA RIVERSIDE · PI GIRKE, THOMAS · 2014 to 2014
$593k
NIH HHS S10 OD016290
6 · The paper itself

Abstract

The patterns and drivers of bacterial strain dominance remain poorly understood in natural populations. Here, we cultured 1292 Bradyrhizobium isolates from symbiotic root nodules and the soil root interface of the host plant Acmispon strigosus across a >840-km transect in California. To investigate epidemiology and the potential role of accessory loci as epidemic drivers, isolates were genotyped at two chromosomal loci and were assayed for presence or absence of accessory "symbiosis island" loci that encode capacity to form nodules on hosts. We found that Bradyrhizobium populations were very diverse but dominated by few haplotypes-with a single "epidemic" haplotype constituting nearly 30 % of collected isolates and spreading nearly statewide. In many Bradyrhizobium lineages, we inferred presence and absence of the symbiosis island suggesting recurrent evolutionary gain and or loss of symbiotic capacity. We did not find statistical phylogenetic evidence that the symbiosis island acquisition promotes strain dominance and both symbiotic and non-symbiotic strains exhibited population dominance and spatial spread. Our dataset reveals that a strikingly few Bradyrhizobium genotypes can rapidly spread to dominate a landscape and suggests that these epidemics are not driven by the acquisition of accessory loci as occurs in key human pathogens.

Indexed as

SymbiosisBradyrhizobiumCaliforniaFabaceaeGenomic IslandsGenotypePhylogenyRoot Nodules, PlantEpidemicEvolutionPopulation geneticsRhizobiaSymbiosis

Identifiers

PMID26467244

What OpenQuestion holds

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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.