Evidence map›Paper›PMID 34453562›Full record

ArticleApplied microbiology and biotechnology2021

Development of an Illumina-based analysis method to study bradyrhizobial population structure-case study on nitrogen-fixing rhizobia associating with cowpea or peanut.

Antoine Le Quéré, Seynabou Diop, Noémie Dehaene, Diariatou Niang, Francis Do Rego, Saliou Fall, Marc Neyra, Tatiana Karsova-Wade

Abstract read
PubMed Publisher
In one paragraph

Article in Applied microbiology and biotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. 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

8 authors.

Antoine Le QuéréInstitut de Recherche Pour Le Développement (IRD), UMR LSTM, 34398, Montpellier, France. antoine.le-quere@ird.fr.
Seynabou DiopLaboratoire Commun de Microbiologie (LCM: IRD, ISRA, UCAD), Route des hydrocarbures, Dakar, Senegal.
Noémie DehaeneInstitut de Recherche Pour Le Développement (IRD), UMR LSTM, 34398, Montpellier, France.
Diariatou NiangLaboratoire Commun de Microbiologie (LCM: IRD, ISRA, UCAD), Route des hydrocarbures, Dakar, Senegal.
Francis Do RegoInstitut de Recherche Pour Le Développement (IRD), UMR LSTM, 34398, Montpellier, France.
Saliou FallLaboratoire Commun de Microbiologie (LCM: IRD, ISRA, UCAD), Route des hydrocarbures, Dakar, Senegal.
Marc NeyraInstitut de Recherche Pour Le Développement (IRD), UMR LSTM, 34398, Montpellier, France.
Tatiana Karsova-WadeInstitut de Recherche Pour Le Développement (IRD), UMR LSTM, 34398, Montpellier, France.

Funding

Institut de recherche pour le Développement (IRD) Coup de Pouce (2018-20)
6 · The paper itself

Abstract

Bradyrhizobia are Gram-negative soil bacteria that regroup a growing number of species. They are widespread in nature and recovered from various biomes that may be explained by a high genetic diversity in this genus. Among the numerous metabolic properties they can harbor, the nitrogen fixation resulting from the association with plants among which important crop legumes (soya bean, peanut, cowpea …) is of great interest, notably in a context of sustainable development. Metabarcoding is widely applied to study biodiversity from complex microbial communities. Here, we demonstrate that using a new species-specific and highly polymorphic 16S-23S rRNA intergenic spacer barcode, we could rapidly estimate the diversity of bradyrhizobial populations that associate with cowpea and peanut plants, two crop legumes of major interest in Senegal. Application of the method on indigenous bradyrhizobia associated with peanut and cowpea grown in soils collected in the center of the peanut basin shows that Bradyrhizobium vignae is a dominant symbiont. We also showed that the two plant species associate with distinct community profiles and that strains introduced by inoculation significantly modified the population structure with these two plants suggesting that application of elite strains as inoculants may well ensure optimized symbiotic performance. This approach may further be used to study the diversity of bradyrhizobia from contrasting agro-eco-climatic zones, to test whether the plant genotype influences the association outputs as well as to estimate the competitiveness for nodule occupancy and the fate of elite strains inoculated in the field.Key points• An amplicon sequencing approach targeting the Bradyrhizobium genus was developed.• Diversity of cowpea and peanut bradyrhizobia from cultivated soils was identified.• The method is well suited to test the competitiveness of defined Bradyrhizobium inoculants.

Indexed as

BradyrhizobiumFabaceaeRhizobiumVignaArachisDNA, BacterialNitrogenPhylogenyRNA, Ribosomal, 16SRoot Nodules, PlantSymbiosisDNA, BacterialNitrogenRNA, Ribosomal, 16S16S-23S rRNA Internal Transcribed SpacerBradyrhizobium diversityCowpeaMetabarcodingNitrogen-fixing symbiosisPeanut

Identifiers

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.