Impact of genetic drift, selection and accumulation level on virus adaptation to its host plants.

ABSTRACT: The efficiency of plant major resistance genes is limited by the emergence and spread of resistance-breaking mutants. Modulation of the evolutionary forces acting on pathogen populations constitutes a promising way to increase the durability of these genes. We studied the effect of four plant traits affecting these evolutionary forces on the rate of resistance breakdown (RB) by a virus. Two of these traits correspond to virus effective population sizes (N_e ) at either plant inoculation or during infection. The third trait corresponds to differential selection exerted by the plant on the virus population. Finally, the fourth trait corresponds to within-plant virus accumulation (VA). These traits were measured experimentally on Potato virus Y (PVY) inoculated to a set of 84 pepper

SUBMITTER: Rousseau E 

PROVIDER: S-EPMC6638063 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature