Integrated genomics, plant pathology and breeding research for improvement of Fusarium head blight, leaf rust and stripe rust resistance in Canadian cereals

Citation

Henriquez, M.A., Humphreys, G., McCallum, B.D., Randhawa, H.S., Fetch, T., Fetch, J.M., Wang, X., Belmonte, M.F., McCartney, C.A., Kang-Choi, M. 2018. Integrated genomics, plant pathology and breeding research for improvement of Fusarium head blight, leaf rust and stripe rust resistance in Canadian cereals. Canadian Phytopathological Society Meeting. Quebec, June 17-20, 2018.

Plain language summary

Development of cereal crop varieties with resistance to Fusarium head blight (FHB) (Fusarium sp.) and rust (Puccinia sp.) is a main breeding goal worldwide. This knowledge will be transferred to breeding programs for marker assisted selection and will be an important resource for breeding new elite disease resistant wheat and oat cultivars for Canada.

Abstract

Development of cereal crop varieties with resistance to Fusarium head blight (FHB) (Fusarium sp.) and rust (Puccinia sp.) is a main breeding goal worldwide. This project objectives are; 1) development and genotyping of a winter wheat germplasm collection, 2) development of a doubled haploid mapping population from the winter wheat cross: AC Morley x Emerson, 3) phenotyping of the DH population for its response to Fusarium head blight, 4) genotype the AC Morley x Emerson doubled haploid population to provide SNPs to generate a molecular map of the population, 5) QTL mapping of FHB resistance, 6) identify and characterize Fusarium species from FHB infected winter wheat crops, 7) transcriptome analyses of winter wheat - F. graminearum interaction, 8) validation of differentially expressed genes, 9) development/validation of SNP markers diagnostic for FHB resistance of winter wheat, 10) development of FHB, leaf rust and stripe rust resistant germplasm, and linked molecular markers, that can be used by wheat breeding programs, and 11) analysis of Fusarium species complex in oat and screening of oat germplasm for resistance to major Fusarium species found in western Canada. This knowledge will be transferred to breeding programs for marker assisted selection and will be an important resource for breeding new elite disease resistant wheat and oat cultivars for Canada.