Efficacy of Blackleg Major Resistance Genes in in Germany.

is one of the major pathogens of oilseed rape (). It causes blackleg disease, which accounts for significant yield losses worldwide. Using cultivars that harbor major resistance () genes is one of the most effective control methods.

Dissection of Quantitative Blackleg Resistance Reveals Novel Variants of Resistance Gene in Elite .

Blackleg is one of the major fungal diseases in oilseed rape/canola worldwide. Most commercial cultivars carry gene-mediated qualitative resistances that confer a high level of race-specific protection against , the causal fungus of blackleg disease. However, monogenic resistances of this kind can potentially be rapidly overcome by mutations in the pathogen's avirulence genes.

Hybrids between Brassica napus and B. nigra show frequent pairing between the B and A/C genomes and resistance to blackleg.

High frequencies of homoeologous and even non-homologous chromosome recombination in Brassica hybrids can transfer useful traits between genomes, but also destabilise synthetic allopolyploids. We produced triploid hybrids (2n = 3x = ABC) from the cross B. napus (rapeseed, 2n = 4x = AACC) × B.