Pattern of local adaptation to quantitative host resistance in a major pathogen of a perennial crop.

ABSTRACT: Understanding the mechanisms involved in pathogen adaptation to quantitative resistance in plants has a key role to play in establishing durable strategies for resistance deployment, especially in perennial crops. The erosion of quantitative resistance has been recently suspected in Cuba and the Dominican Republic for a major fungal pathogen of such a crop: Pseudocercospora fijiensis, causing black leaf streak disease on banana. This study set out to test whether such erosion has resulted from an adaptation of P. fijiensis populations, and to determine whether or not the adaptation is local. Almost 600 P. fijiensis isolates from Cuba and the Dominican Republic were sampled using a paired-population sampling design on resistant and susceptible banana varieties. A low ge

SUBMITTER: Dumartinet T 

PROVIDER: S-EPMC7086059 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature