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Identification and mapping of clubroot resistance genes in Brassica and development of SNP markers tightly linked to resistance genes
Project Details
Lead Researcher(s)
Fengqun Yu
Co-Researcher(s)
Gary Peng, Kevin Falk
Funding Partners
WGRF
April 2013 - March 2016
Complete
The Challenge
The soil borne disease Plasmodiophora brassicae continues to spread across the prairies with very limited sources of resistance in Brassica napus.
The Project
Analyze and map a variety of novel additional resistance genes highly resistant to all Canadian pathotypes of P.brassicae. Identify robust and low-cost molecular markers tightly associated with genes for marker assisted selection in canola breeding.
The Results
Five resistance genes/alleles were fine mapped in Brassica rapa, and one in Brassica oleracea. Hundreds of SNPs in the target region of each resistance gene were identified. No resistant sources were found in Brassica juncea or Brassica carinata.
Grower Benefits
Canola varieties available commercially will have a more robust resistance package to clubroot, minimizing risk of pathotype shift.
Keywords:
Clubroot, SNP markers, Clubroot resistance, Clubroot genetics, Plasmodiphora brassicae, P. brassicae