A thousand-genome panel retraces the global spread and adaptation of a major fungal crop pathogen - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Nature Communications Year : 2023

A thousand-genome panel retraces the global spread and adaptation of a major fungal crop pathogen

Abstract

Abstract Human activity impacts the evolutionary trajectories of many species worldwide. Global trade of agricultural goods contributes to the dispersal of pathogens reshaping their genetic makeup and providing opportunities for virulence gains. Understanding how pathogens surmount control strategies and cope with new climates is crucial to predicting the future impact of crop pathogens. Here, we address this by assembling a global thousand-genome panel of Zymoseptoria tritici , a major fungal pathogen of wheat reported in all production areas worldwide. We identify the global invasion routes and ongoing genetic exchange of the pathogen among wheat-growing regions. We find that the global expansion was accompanied by increased activity of transposable elements and weakened genomic defenses. Finally, we find significant standing variation for adaptation to new climates encountered during the global spread. Our work shows how large population genomic panels enable deep insights into the evolutionary trajectory of a major crop pathogen.
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hal-04027129 , version 1 (12-09-2023)

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Alice Feurtey, Cécile Lorrain, Megan Mcdonald, Andrew Milgate, Peter Solomon, et al.. A thousand-genome panel retraces the global spread and adaptation of a major fungal crop pathogen. Nature Communications, 2023, 14 (1), pp.1059. ⟨10.1038/s41467-023-36674-y⟩. ⟨hal-04027129⟩
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