Evidence map›Paper›PMID 23301163›Full record

ArticleEcology and evolution2012

Microevolution of symbiotic Bradyrhizobium populations associated with soybeans in east North America.

Jie Tang, E S P Bromfield, N Rodrigue, S Cloutier, J T Tambong

Open access · goldAbstract read
In one paragraph

Article in Ecology and evolution, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
4.8field-weighted citation impact, top 6% 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

27 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Article
  3. International journal of systematic and evolutionary microbiology · 2025
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  5. Frontiers in microbiology · 2023
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  9. International journal of systematic and evolutionary microbiology · 2021
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  10. Strains ofInternational journal of systematic and evolutionary microbiology · 2020
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  11. Description and complete genome sequences ofInternational journal of systematic and evolutionary microbiology · 2020
    Article
  12. Applied and environmental microbiology · 2019
    Article
  13. International journal of systematic and evolutionary microbiology · 2019
    Article
  14. InvasiveEcology and evolution · 2019
    Article
  15. Phylogeography of theFrontiers in microbiology · 2019
    Article
  16. Complete Genome Sequence of Bradyrhizobium ottawaense OO99Microbiology resource announcements · 2018
    Article
  17. Article
  18. Article
  19. Article
  20. Specificity in Legume-Rhizobia Symbioses.International journal of molecular sciences · 2017
    Review
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

5 authors at 1 institution in 1 country.

Jie TangAgriculture and Agri-Food Canada 960 Carling Ave, Ottawa, Ontario, Canada, K1A 0C6.
E S P Bromfield
N Rodrigue
S Cloutier
J T Tambong
Agriculture and Agri-Food Canada · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microevolution and origins of Bradyrhizobium populations associated with soybeans at two field sites (A and B, 280 km apart in Canada) with contrasting histories of inoculation was investigated using probabilistic analyses of six core (housekeeping) gene sequences. These analyses supported division of 220 isolates in five lineages corresponding either to B. japonicum groups 1 and 1a or to one of three novel lineages within the genus Bradyrhizobium. None of the isolates from site A and about 20% from site B (the only site with a recent inoculation history) were attributed to inoculation sources. The data suggest that most isolates were of indigenous origin based on sequence analysis of 148 isolates of soybean-nodulating bacteria from native legumes (Amphicarpaea bracteata and Desmodium canadense). Isolates from D. canadense clustered with B. japonicum group 1, whereas those from A. bracteata were placed in two novel lineages encountered at soybean field sites. One of these novel lineages predominated at soybean sites and exhibited a significant clonal expansion likely reflecting selection by the plant host. Homologous recombination events detected in the 35 sequence types from soybean sites had an effect on genetic diversification that was approximately equal to mutation. Interlineage transfer of core genes was infrequent and mostly attributable to gyrB that had a history of frequent recombination. Symbiotic gene sequences (nodC and nifH) of isolates from soybean sites and native legumes clustered in two lineages corresponding to B. japonicum and B. elkani with the inheritance of these genes appearing predominantly by vertical transmission. The data suggest that soybean-nodulating bacteria associated with native legumes represent a novel source of ecologically adapted bacteria for soybean inoculation.

Indexed as

BradyrhizobiumevolutionGlycine max (soybean)homologous recombinationinoculationnative legumes

Identifiers

PMID23301163
PMCPMC3538991
OpenAlexW2034459377

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.