The Green Revolution shaped the population structure of the rice pathogen Xanthomonas oryzae pv. oryzae.

ABSTRACT: The impact of modern agriculture on the evolutionary trajectory of plant pathogens is a central question for crop sustainability. The Green Revolution replaced traditional rice landraces with high-yielding varieties, creating a uniform selection pressure that allows measuring the effect of such intervention. In this study, we analyzed a unique historical pathogen record to assess the impact of a major resistance gene, Xa4, in the population structure of Xanthomonas oryzae pv. oryzae (Xoo) collected in the Philippines in a span of 40 years. After the deployment of Xa4 in the early 1960s, the emergence of virulent pathogen groups was associated with the increasing adoption of rice varieties carrying Xa4, which reached 80% of the total planted area. Whole genomes analysis of a representative

SUBMITTER: Quibod IL 

PROVIDER: S-EPMC6976662 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature