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Cereal Rust: Pathogen Biology and Host Resistance

Kianian S; Kolmer J A; Szabo L J; Rouse M N; Jin Y
USDA - Agricultural Research Service
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Objective 1: Monitor, collect, and characterize U.S. cereal rust pathogens. Sub-objective 1.A. Monitor, collect, and characterize cereal rust pathogen populations in the U.S. for virulence to rust resistance genes in current cultivars. Sub-objective 1.B. Determine levels of genetic variation in Puccinia triticina, P. graminis and P. coronata populations. Sub-objective 1.C. Refine phylogenetics and systematics of P. graminis from Mahonia and other native Berberis spp. in North America. Objective 2: Further develop genomic resources of cereal rust pathogens and identify fungal genes involved in pathogenicity and development. Sub-objective 2.A. Identify effectors of P. graminis f. sp. tritici involved in fungal pathogenicity and host resistance. Sub-objective 2.B. Develop genomic resources and tools for more detailed analysis of P. coronata. Objective 3: Improve host resistance in cereal crops to rust pathogens through investigations in sources and genetics of rust resistance, characterization of various germplasm, and incorporation into adapted germplasm. Sub-objective 3.A. Evaluate wheat, oat and barley germplasm from U.S. breeding programs for rust resistance. Sub-objective 3.B. Identify and characterize new sources of rust resistance in wheat, barley, and oat; and incorporate into adapted germplasm.
Funding Source
Agricultural Research Service
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Viruses and Prions
Bacterial Pathogens