Century-old herbarium specimen provides insights into Pierce's disease of grapevines emergence in the Americas

Donegan Monica A., Kahn Alexandra K., Becker Nathalie, Castillo Siri Andreina, Campos Paola, Boyer Karine, Colwell Alison, Briand Martial, Almeida Rodrigo P.P., Rieux Adrien. 2025. Century-old herbarium specimen provides insights into Pierce's disease of grapevines emergence in the Americas. Current Biology, 35 (1):e34 : 145-153.

Url - jeu de données - Entrepôt autre : https://www.ncbi.nlm.nih.gov/bioproject/PRJNA1114123/ / Url - jeu de données - Entrepôt autre : https://www.ncbi.nlm.nih.gov/bioproject/?term=PRJNA786005 / Url - autres données associées : https://github.com/MonicaDonegan/aDNA-xylella-herbarium

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Anthropologie-Ethnologie; Psychologie-éthologie-ergonomie

Résumé : Fossils and other preserved specimens are integral for informing timing and evolutionary history in every biological system. By isolating a plant pathogen genome from herbarium-preserved diseased grapevine material from 1906 (Herb_1906), we were able to answer questions about an enigmatic system. The emergence of Pierce's disease (PD) of grapevine has shaped viticultural production in North America; yet, there are uncertainties about the geographic origin of the pathogen (Xylella fastidiosa subsp. fastidiosa, Xff) and the timing and route of its introduction. We produced a high-quality, de novo genome assembly of this historical plant pathogen and confirmed degradation patterns unique to ancient DNA. Due to the inclusion of the Herb_1906 sample, we were able to generate a significant temporal signal in the genomic data. This allowed us to build a time-calibrated phylogeny, where we estimate the introduction of Xff into the US between 1734 and 1741 CE, an earlier time frame than previously inferred. In a large collection of >300 Xff genomes, the Herb_1906 sample was genetically most similar to a small population from Northern California but not basal to the entire Xff California clade. Based on phylogenetic placement and a phylogeographic reconstruction, our data support a single introduction of Xff into the Southeastern US from Central America, with multiple subsequent introductions into California.

Mots-clés Agrovoc : phylogénie, génome, viticulture, Xylella fastidiosa, vigne, biologie moléculaire, agent pathogène, Coffea canephora, maladie des plantes

Mots-clés géographiques Agrovoc : Europe, Californie

Agences de financement européennes : European Regional Development Fund

Agences de financement hors UE : Agence Nationale de la Recherche, Conseil Régional de La Réunion, Centre de Coopération Internationale en Recherche Agronomique pour le Développement

Projets sur financement : (FRA) "Une nuit au musée": mieux reconstuire les emergences de bactéries pathogènes des cultures grâce à des échantillons historiques, (EU)Beyond Xylella, Integrated Management Strategies for Mitigating Xylella fastidiosa impact in Europe

Auteurs et affiliations

• Donegan Monica A., UC (USA)
• Kahn Alexandra K., UC (USA)
• Becker Nathalie, CNRS (FRA)
• Castillo Siri Andreina, UC (USA)
• Campos Paola, MNHN (FRA)
• Boyer Karine, CIRAD-BIOS-UMR PVBMT (REU)
• Colwell Alison, UC (USA)
• Briand Martial, INRAE (FRA)
• Almeida Rodrigo P.P., UC (USA) - auteur correspondant
• Rieux Adrien, CIRAD-BIOS-UMR PVBMT (REU) ORCID: 0000-0002-7221-0010 - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/613549/)

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