High-oleic acid Australian Brassica napus and B. juncea varieties produced by co-suppression of endogenous Delta12-desaturases.

Genetic engineering methods have been used successfully to modify the fatty acid profile of elite Australian germplasm of Brassica napus and B. juncea. Co-suppression plasmids carrying oleate desaturase genes from each species have been constructed and transferred into Australian elite breeding lines of B.