A unique resistance mechanism is associated with RBgh2 barley powdery mildew adult plant resistance.

ABSTRACT:

Key message

Gene expression at the RBgh2 locus indicates involvement in cAMP/G-protein-coupled signalling and innate immunity in barley powdery mildew adult plant resistance. Barley powdery mildew is a globally significant disease, responsible for reduced grain yield and quality. A major effect adult plant resistance gene, RBgh2, was previously found in a landrace from Azerbaijan. The atypical phenotype suggested different underlying genetic factors compared to conventional resistance genes and to investigate this, genome-wide gene expression was compared between sets of heterogeneous doubled haploids. RBgh2 resistance is recessive and induces both temporary genome-wide gene expression changes during powdery mildew infection together with constitutive changes, principally at the RB

SUBMITTER: Moolhuijzen P 

PROVIDER: S-EPMC10229466 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature