Claim · model-written summary
Lr34, Lr46 and Lr67 condition partial resistance to all isolates and other wheat diseases.
- Taxon
- wheat
Triticum aestivumt0 - Interactor
- P. triticina
Puccinia triticinae1pathogene0 - Gene
- Lr34, Lr46, and Lr67e0
- Outcome
- partial resistance to all isolatese0
Not reportedMaterialCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lr34, Lr46, and Lr67 are unique among resistance genes in that they are non-race-specific, conditioning partial resistance to all isolates, while also providing resistance to other wheat diseases.”
t0“wheat”
e1“The virulence profile of the P. triticina population and virulence to key resistance genes changes significantly over time, and differs between regions.”
Title
Combating a dynamic wheat rust population in Canada
B.D. McCallum; C.W. Hiebert; T. Fetch; et al. Canadian Journal of Plant Science 2025. doi:10.1139/cjps-2024-0151
Other claims from this paper (10)
- Observation P. triticina virulence and virulence against key wheat resistance genes change over time and differ by region.
- Observation Sequencing initially revealed three diverse Canadian P. triticina groups.
- Observation Group one isolates shared the same two mating type alleles.
- Observation Group two isolates shared a second allele combination.
- Observation Group three contained eight subgroups across different genetic clades.
- Observation A fourth distinct pathogen group was found in British Columbia.
- Observation Lr34 and Lr67 conferred resistance to Fusarium head blight.
- Observation Only Lr34res lines accumulated the fungistatic compound named in the abstract.
- Observation Lr34 produces leaf tip necrosis, enhanced at low temperatures.
- Recommendation Combining race-specific genes with Lr34, Lr46 or Lr67 offers the best potential for protecting wheat against dynamic rust.