Canola (brassica napus) germplasm carrying clubroot resistance
Clubroot resistance genetic loci identified and introgressed into canola breeding lines. Lines have been tested in both greenhouse and field showing excellent clubroot resistance. New clubroot resistance genetic locus on chromosome A9 has been identified in certain canola breeding lines. Molecular markers of the A9 resistance loci are being identified and be can used in breeding programs.
Highlights
- Clubroot resistance genetic loci identified and introgressed into canola breeding lines.
- Lines have been tested in both greenhouse and field showing excellent clubroot resistance.
- New clubroot resistance genetic locus on chromosome A9 has been identified in certain canola breeding lines. Molecular markers of the A9 resistance loci are being identified and be can used in breeding programs.
Opportunity
Clubroot disease is a prominent and costly disease of canola oilseed crops and is caused by the pathogen Plasmodiophora brassicae. This pathogen exists as multiple pathotypes for which no single resistance loci can confer resistance to all pathotypes. Through extensive plant breeding programs, resistance loci can be introgressed into elite canola lines for resistance to relevant pathotypes. Researchers at the University of Alberta have developed canola breeding lines carrying clubroot resistance that can be used to develop commercial canola cultivars. The lines have been tested in both greenhouse and field where the lines showed excellent clubroot resistance. Additionally, they have identified a novel clubroot resistance loci on chromosome A9 and corresponding molecular markers for canola breeding programs are being identified.
- Canola with resistance from Rutabaga: cv. Brookfield: These lines carry a major and a minor resistance gene and show resistance to multiple Plasmodiophora brassicae pathotypes such as pathotype 2, 3, 5, 6, 8, 3H, 3D, 5G, 5I, 8E, 8P, and partial resistance to 3A, and 2B. (#2023064)
- Canola with resistance from Rutabaga: cv. Polycross. The lines carry two major loci and confer resistance to multiple pathotypes including pathotype 3A, 3H, 3D, and 2B (#2023065)
- Canola B. napus with resistance from B. oleracea. The lines carry resistance to multiple pathotypes including pathotype 3H, 3A, 3D, 2B and 5X (#2023066)
- Canola with resistance from B rapa cv, Debra: This line carries a novel resistance gene and shows resistance to multiple Plasmodiophora brassicae pathotypes such as 3A, 3H, 2B, 3D and 5X. (2023402)
Competitive advantage
- The clubroot resistant lines are in canola quality background; therefore, they can provide a source of clubroot disease resistance for efficient use in breeding.
- Multiple genetic loci can be selected to achieve resistance to the pathotypes of concern.
- Molecular markers associated with the resistance can accelerate canola breeding programs.
Status
- A9 clubroot resistance locus: Patent Pending
About University of Alberta
The University of Alberta is a large, comprehensive public research university in Edmonton with multiple campuses and a strong applied research culture. Industry engages through co-located labs and pilot-scale facilities, as well as established co-op and internship programs that place talent with partners year-round. Integration with Alberta’s province-wide hospital system supports clinical research and accelerates translation. Companies also benefit from proximity to regional industry clusters and collaboration hubs on and near campus for joint R&D and prototyping. Supported by NSERC, CIHR, SSHRC, and Canada Foundation for Innovation funding—plus provincial and industry support—the tech transfer office manages IP, licensing, and startup formation with streamlined sponsored-research agreements.
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