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ARS Home » Midwest Area » St. Paul, Minnesota » Cereal Disease Lab » Research » Publications at this Location » Publication #409454
Research Project: Surveillance, Pathogen Biology, and Host Resistance of Cereal Rusts

Location: Cereal Disease Lab

Title: Registration of the 'Woodies' multi-rust resistant barley germplasm

Author
item MASSMAN, CHRISTOPHER - Oregon State University
item HERNANDEZ, JAVIER - University Of Los Lagos
item CLARE, SHAUN - Washington State University
item BROOKE, MATTHEW - Washington State University
item FILICHKIN, TANYA - Oregon State University
item FISK, SCOTT - Oregon State University
item HELGERSON, LAURA - Oregon State University
item DEL BLANCO, ISABEL - University Of California, Davis
item Rouse, Matthew
item STEFFENSON, BRIAN - University Of Minnesota
item BRUEGGEMAN, ROBERT - Washington State University
item HAYES, PATRICK - Oregon State University

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 2/24/2024
Publication Date: 5/1/2024
Citation: Massman, C., Hernandez, J., Clare, S., Brooke, M., Filichkin, T., Fisk, S., Helgerson, L., Del Blanco, I.A., Rouse, M.N., Steffenson, B.J., Brueggeman, R.S., Hayes, P. 2024. Registration of the 'Woodies' multi-rust resistant barley germplasm. Journal of Plant Registrations. 18(2):393-401. https://doi.org/10.1002/plr2.20373.
DOI: https://doi.org/10.1002/plr2.20373

Interpretive Summary: Barley stem rust and stripe rust are two of the most important diseases of barley worldwide. The present work aims to develop and deploy barley varieties with resistance to these diseases that can be used in future breeding efforts. We developed two two-row spring habit barley lines that were released by the Oregon Agricultural Experiment Station in 2023. These two lines have demonstrated resistance to both stem and stripe rust at the seedling and adult plant stage in trials conducted between 2018 and 2023. Of note, the lines possess resistance that is effective in the field to Ug99 stem rust that appears to be independent from previously described resistance genes effective to Ug99. These lines could prove to be valuable for deriving new barley varieties to protect U.S. barley from stem and stripe rust.

Technical Abstract: Selection for resistance to plant diseases is a continuous effort on the part of plant breeders. Sources of genetic resistance are often limited, despite considerable discovery efforts. Stem rust (incited by Puccinia graminis f. sp. tritici) and stripe rust (incited by Puccinia striiformis f. sp. hordei) are two diseases of particular importance in barley (Hordeum vulgare L.) production. The present work aims to develop and deploy genotypes with resistance to these diseases that can be used in future breeding efforts. The Woodies, Woody-1 and Woody-2 (DH160733 and DH160754), are two doubled haploid genotypes produced via F1 anther culture named in honor of the late Lynn 'Woody' Gallagher. These two-row spring habit barley germplasm accessions were released by the Oregon Agricultural Experiment Station in 2023. These genotypes have demonstrated resistance to both stem and stripe rust at the seedling and adult plant stage in trials conducted between 2018 and 2023. The genetic basis of this resistance appears to be a novel QTL conferring resistance to both diseases on chromosome 5H that is independent from the known rpg4/Rpg5 complex for stem rust resistance found on the same chromosome. Seed can be requested from the Oregon State University Barley Breeding Program.