Impact of selection, genetic drift and viral accumulation on the evolution of a plant RNA virus
2016
Tamisier, Lucie | Girardot, Gregory | Nemouchi, Ghislaine | Szadkowski, Marion | Palloix, Alain | Moury, Benoit,
Genetic control is an efficient way to fight against crop disease, but this method is limited by the pathogen ability to evolve and break the resistance down. In the pepper-Potato virus Y (PVY) pathosystem, studies have demonstrated that the plant genetic background can increase the durability of the major resistance gene (Palloix et al., 2009), especially by constraining pathogen evolution (Quenouille et al., 2013). We conducted an experimental evolution to (i) measure the pathogen ability to adapt to plants combining major resistance gene and partially resistant genetic background and (ii) identify the role of the evolutionary forces induced by the genetic background on virus evolution.
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