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

"data availability the rna sequence read data in this manuscript have been deposited in the european nucleotide archive under bioproject prjeb46882 accession numbers err6473254-err6473324. the analyses and expression data are available in rstudio v1 3 1093 (rstudio-team ) markdown script at https://github com/ccdmb/barley-dh-pow-rnaseq .; gene expression data from a previous study of powdery mildew infection of barley near-isogenic mlo lines (nils) (ge et al ) were used to compare expression around the 7h rbgh2 locus and are also available through the github link above.; the analyses and data are available in rstudio v1 3 1093 (rstudio-team ) markdown notebook https://github com/ccdmb/barley-dh-pow-rnaseq . data availability the rna sequence read data in this manuscript have been deposited in the european nucleotide archive under bioproject prjeb46882"

"the analyses and expression data are available in rstudio v1 3 1093 (rstudio-team ) markdown script at https://github com/ccdmb/barley-dh-pow-rnaseq .; gene expression data from a previous study of powdery mildew infection of barley near-isogenic mlo lines (nils) (ge et al ) were used to compare expression around the 7h rbgh2 locus and are also available through the github link above.; the analyses and data are available in rstudio v1 3 1093 (rstudio-team ) markdown notebook https://github com/ccdmb/barley-dh-pow-rnaseq .; gene expression analyses are available as r-markdown notebooks at https://github com/ccdmb/barley-dh-pow-rnaseq ."

"Declarations Conflicts of interestAll authors declare no conflicts of interest and no financial or non-financial interests to disclose. Conflicts of interest All authors declare no conflicts of interest and no financial or non-financial interests to disclose."

"Funding Open Access funding enabled and organized by CAUL and its Member Institutions. This research was funded under Grains Research and Development Corporation grant CUR00023 B4."