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24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

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Infectious Diseases and Public Health

French National Institute for Agricultural Research - University of Tours (France)

Genomic Plasticity, Biodiversity, and Antimicrobial Resistance

© Inra
Team leader: Benoît Doublet

Our research group investigates the biodiversity and bacterial genomic evolution contributing to the epidemiological success of bacterial pathogens. We study also the dissemination of pathogenic bacteria across various ecosystems. We use a combination of genetics and comparative genomics approaches with a particular interest for mobile genetic elements. We investigate 3 model systems:

  • acquired antimicrobial resistance in Gram-negative bacteria,
  • evolutionary history of genera and pathogenic species belonging to the family Brucellaceae,
  • genomics of mycobacteria Mycobacterium avium ssp. Paratuberculosis (Map) and Mycobacterium bovis related to their evolutions and reservoirs.

We are interested in major multidrug resistance mobile genetic elements, i.e. plasmids and integrative conjugative elements, spreading critically-important resistance genes in the One Health context (horizontal gene transfer, persistence, dissemination routes).

We also investigate the evolutionary history and the emergence of pathogenic species within the family Brucellaceae (e.g. zoonotic Brucellae and opportunistic Ochrobactrum). We are particularly interested in cell wall components (outer membrane proteins, lipopolysaccharide, and resistance).

We also study the genetic diversity and the evolution of pathogenic mycobacteria in animals for identifying key genetic determinants for virulence, host adaptation and environmental persistence. We are studying the transmission dynamics of mycobacteria and we are deciphering the biosynthesis of Map-specific  cell wall antigens.


Pubmed since 2012


Scientific staff


 PhD students

Baucheron-Monnier Sylvie
Biet Franck
Cloeckaert Axel
Doublet Benoît
Leclercq Sébastien
Zygmunt Michel

Branger Maxime
Cochard Thierry
Foubert Isabelle
Praud Karine

Condé Cyril