Dupas Enora, Durand Karine, Rieux Adrien, Briand Martial, Pruvost Olivier, Cunty Amandine, Denancé Nicolas, Donnadieu Cecile, Legendre Bruno, Lopez-Roques Céline, Cesbron Sophie, Ravigné Virginie, Jacques Marie Agnès. 2023. Suspicions of two bridgehead invasions of Xylella fastidiosa subsp. multiplex in France. Communications Biology, 6:103, 13 p.
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Url - jeu de données - Entrepôt autre : https://doi.org/10.15454/E8XX-4Z18
Résumé : Of American origin, a wide diversity of Xylella fastidiosa strains belonging to different subspecies have been reported in Europe since 2013 and its discovery in Italian olive groves. Strains from the subspecies multiplex (ST6 and ST7) were first identified in France in 2015 in urban and natural areas. To trace back the most probable scenario of introduction in France, the molecular evolution rate of this subspecies was estimated at 3.2165 × 10-7 substitutions per site per year, based on heterochronous genome sequences collected worldwide. This rate allowed the dating of the divergence between French and American strains in 1987 for ST6 and in 1971 for ST7. The development of a new VNTR-13 scheme allowed tracing the spread of the bacterium in France, hypothesizing an American origin. Our results suggest that both sequence types were initially introduced and spread in Provence-Alpes-Côte d'Azur (PACA); then they were introduced in Corsica in two waves from the PACA bridgehead populations.
Mots-clés Agrovoc : génotype, espèce envahissante, génétique des populations, phylogénie, zone urbaine, génome, provenance, génomique
Mots-clés géographiques Agrovoc : France, Corse, Espagne, Brésil, Europe, Afrique
Mots-clés libres : Evolutionary genetics, Molecular biology
Classification Agris : H20 - Maladies des plantes
Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes
Agences de financement européennes : European Commission, European Regional Development Fund
Agences de financement hors UE : France Génomique, Agence Nationale de la Recherche, Conseil Général de La Réunion, Centre de Coopération Internationale en Recherche Agronomique pour le Développement
Programme de financement européen : H2020
Projets sur financement : (EU) Xylella Fastidiosa Active Containment Through a multidisciplinary-Oriented Research Strategy, (FRA) Organisation et montée en puissance d'une Infrastructure Nationale de Génomique
Auteurs et affiliations
- Dupas Enora, Université d'Angers (FRA)
- Durand Karine, INRAE (FRA)
- Rieux Adrien, CIRAD-BIOS-UMR PVBMT (REU)
- Briand Martial, INRAE (FRA)
- Pruvost Olivier, CIRAD-BIOS-UMR PVBMT (REU)
- Cunty Amandine, French Agency for Food (FRA)
- Denancé Nicolas, INRAE (FRA)
- Donnadieu Cecile, INRAE (FRA)
- Legendre Bruno, French Agency for Food (FRA)
- Lopez-Roques Céline, INRAE (FRA)
- Cesbron Sophie, INRAE (FRA)
- Ravigné Virginie, CIRAD-BIOS-UMR PHIM (FRA) ORCID: 0000-0002-4252-2574
- Jacques Marie Agnès, INRAE (FRA) - auteur correspondant
Source : Cirad-Agritrop (https://agritrop.cirad.fr/604481/)
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