Microbial Ecology

, Volume 60, Issue 4, pp 862–872 | Cite as

Rapid and Efficient Identification of Agrobacterium Species by recA Allele Analysis

Agrobacterium recA Diversity
  • Denis Costechareyre
  • Ali Rhouma
  • Céline Lavire
  • Perrine Portier
  • David Chapulliot
  • Franck Bertolla
  • Ali Boubaker
  • Yves Dessaux
  • Xavier Nesme


The analysis of housekeeping recA gene sequences from 138 strains from 13 species or genomic species of Agrobacterium, nine being biovar 1 genomospecies, and the others Agrobacterium larrymoorei, Agrobacterium rubi, Agrobacterium sp. NCPPB 1650, and Agrobacterium vitis and one “former” Agrobacterium species, Rhizobium rhizogenes, led to the identification of 50 different recA alleles and to a clear delineation of the 14 species or genomospecies entirely consistent with that obtained by amplified fragment length polymorphism (AFLP) analysis. The relevance of a recA sequencing approach for epidemiological analyses was next assessed on agrobacterial Tunisian isolates. All Tunisian isolates were found to belong to the Agrobacterium tumefaciens/biovar 1 species complex by both biochemical tests and rrs sequencing. recA sequence analysis further permitted their unambiguous assignment to A. tumefaciens genomospecies G4, G6, G7, and G8 in total agreement with the results of an AFLP-based analysis. At subspecific level, several Tunisian recA alleles were novel, indicating the power and accuracy of recA-based typing for studies of Agrobacterium spp.


Amplify Fragment Length Polymorphism Rhizobium Agrobacterium Crown Gall Amplify Fragment Length Polymorphism Pattern 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The authors would like to thank M.-A. Poirier, C. Lerondelle, and M. Briand for technical assistance and J. Nesme for processing sequences for EMBL. This work was supported by the CMCU/PHC program Utique 09G0923 “Spécificités écologiques des espèces d’Agrobacterium tumefaciens des sols tunisiens” and by the “Institut de l’Olivier” in Tunisia, “Université Lyon 1”, and the “Institut des Sciences du Végétal-CNRS” in France, as a follow-up to the international INCO research program “Integrated Control of Crown Gall in Mediterranean Countries” ERBIC18CT970198. AFLP analyses were performed at the DTAMB facility at IFR 41 (University of Lyon 1), and representative strains are stored at CFBP (INRA, Angers).


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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Denis Costechareyre
    • 1
  • Ali Rhouma
    • 2
  • Céline Lavire
    • 1
  • Perrine Portier
    • 1
    • 3
  • David Chapulliot
    • 1
  • Franck Bertolla
    • 1
  • Ali Boubaker
    • 4
  • Yves Dessaux
    • 5
  • Xavier Nesme
    • 1
  1. 1.Ecologie Microbienne UMR 5557 USC 1193Université de Lyon, Université Lyon 1, CNRS, INRAVilleurbanne cedexFrance
  2. 2.Research Unit of Plant Protection and EnvironmentOlive Tree InstituteTunisTunisia
  3. 3.Pathologie végétale, UMR 077, CFBP, INRA, Agrocampus Ouest, Université d’AngersBeaucouzé cedexFrance
  4. 4.Laboratoire de PhytopathologieInstitut National Agronomique de TunisieTunisTunisia
  5. 5.Institut des Sciences du Végétal, UPR 2355CNRSGif-sur-Yvette cedexFrance

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