Resistance to barley stripe rust

Thanks to collaboration with the USDA-ARS (with funding provided by a NACA) we are working with colleagues at ARS, Aberdeen, ID; UC Davis, CA; and ARS-Pullman, WA to characterize levels of adult plant resistance to barley stripe rust, identify the QTLs/genes responsible for the resistance phenotype, and to deploy resistance alleles in new genetic backgrounds.

Phenotype data

BSR screening trial (BSRST). Advanced lines/varieties and checks submitted by OSU (Hayes, Fisk, Helgerson, Hernandez); WSU (Brueggeman); UC Davis (Del Blanco); and ARS-ID (Hu, Evans). Grown annually.

BSR validation population. Selected BSR-resistant germplasm from Cycles I and II. Corvallis, OR and Davis, CA 2020

Facultative/Winter 2-row panel. A germplasm array of 139 doubled haploid advanced lines/varieties and 4 checks comprised of malting elite - preliminary yield trial entries from the OSU breeding program. Grown 2016 crop only.

Phenotype, Genotype and QTL data

GWAS panels

1. Multi-rust resistance Cycle I doubled haploid panel. A germplasm array of 117 doubled haploid lines derived from crosses among parents with resistance to one or more rust diseases (stem, stripe, leaf) and 4 checks. Grown 2016 and 2017. Integrates and leverages the stripe rust and stem rust NACAs.

2. Multi-rust resistance Cycle II doubled haploid panel. A germplasm array of 384 doubled haploid lines derived from crosses among parents with resistance to one or more rust diseases (stem, stripe, leaf) and 4 checks. Integrates and leverages the stripe rust and stem rust NACAs.

3. Multi-rust resistance Cycle III doubled haploid panel. A germplasm array of 386 entries/ Doubled haploid lines derived from crosses among parents with resistance to one or more rust diseases (stem, stripe, leaf) and checks. Integrates and leverages the stripe rust and stem rust NACAs.

Biparental mapping populations

  • 95SR316A#1/GZ#1 mapping population. A set of 166 RILs plus parents and 4 checks. Grown 2016, 2017.