Multi-environment QTL studies suggest a role for cysteine-rich protein kinase genes in quantitative resistance to blackleg disease in Brassica napus.

ABSTRACT:

Background

Resistance to the blackleg disease of Brassica napus (canola/oilseed rape), caused by the hemibiotrophic fungal pathogen Leptosphaeria maculans, is determined by both race-specific resistance (R) genes and quantitative resistance loci (QTL), or adult-plant resistance (APR). While the introgression of R genes into breeding material is relatively simple, QTL are often detected sporadically, making them harder to capture in breeding programs. For the effective deployment of APR in crop varieties, resistance QTL need to have a reliable influence on phenotype in multiple environments and be well defined genetically to enable marker-assisted selection (MAS).

Results

Doubled-haploid populations produced from the susceptible B. napus variety Topas and APR varieties AG-Cas

SUBMITTER: Larkan NJ 

PROVIDER: S-EPMC4995785 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature