Location: Forage Seed and Cereal Research
Project Number: 2072-21000-054-009-S
Project Type: Non-Assistance Cooperative Agreement
Start Date: Sep 1, 2020
End Date: Oct 31, 2022
Produce germplasm, with multiple end-uses, that is resistant to the Ug99 stem rust pathogen and other diseases; document resistance and quality phenotypically and genetically; and make this germplasm available to interested cooperators.
Identify sources of resistance to Ug99 stem rust and other diseases. Cross these sources of resistance with adapted germplasm representing food, feed, and malt applications. Produce panels of inbred lines via doubled haploid and speed breeding. Phenotype the panels for multiple phenotypes, including resistance to UG99, resistance to stripe rust, scald, and other prevailing diseases, resistance to low temperature stress, vernalization sensitivity, grain physical parameters, and (when relevant) malting quality and food quality. Genotype the panels with genome-wide markers, and allele-specific markers. Integrate the genotype and phenotype data via genome wide association scanning methods. The germplasm will be available to interested cooperators for further testing, analysis, gene discovery, and cooperative release for commercial production. This NACA supports research conducted under National Program (NP) Number 303, Plant Diseases. The research is conducted as part of ARS research project 2072-22000-042-00D, funded by Program Increases FY10, FY17, FY19, and FY20 for Small Grain Genomics (Barley Double Haploid).