Population structure of Venturia inaequalis, a causal agent of apple scab, in response to heterogeneous apple tree cultivation.

ABSTRACT:

Background

Tracking newly emergent virulent populations in agroecosystems provides an opportunity to increase our understanding of the co-evolution dynamics of pathogens and their hosts. On the one hand host plants exert selective pressure on pathogen populations, thus dividing them into subpopulations of different virulence, while on the other hand they create an opportunity for secondary contact between the two divergent populations on one tree. The main objectives of the study were to explore whether the previously reported structure between two Venturia inaequalis population types, virulent or avirulent towards Malus x domestica cultivars carrying Rvi6 gene, is maintained or broken several years after the first emergence of new virulent strains in Poland, and to investigate the

SUBMITTER: Michalecka M 

PROVIDER: S-EPMC5775622 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature