Breeding for soil-borne pathogen resistance impacts active rhizosphere microbiome of common bean.

ABSTRACT: Over the past century, plant breeding programs have substantially improved plant growth and health, but have not yet considered the potential effects on the plant microbiome. Here, we conducted metatranscriptome analysis to determine if and how breeding for resistance of common bean against the root pathogen Fusarium oxysporum (Fox) affected gene expression in the rhizobacterial community. Our data revealed that the microbiome of the Fox-resistant cultivar presented a significantly higher expression of genes associated with nutrient metabolism, motility, chemotaxis, and the biosynthesis of the antifungal compounds phenazine and colicin V. Network analysis further revealed a more complex community for Fox-resistant cultivar and indicated Paenibacillus as a keystone genus in the rhizosphere

SUBMITTER: Mendes LW 

PROVIDER: S-EPMC6246553 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature