Abstract A collection of isolates the fungi Leptosphaeria maculans and L . biglobosa , which cause blackleg disease on Brassica napus (canola/oilseed rape) other Brassicaceae species, was assembled to represent global diversity these pathogens a resource for international research. The consists 226 (205 21 ) from 11 countries. genomes all 205 were sequenced, distribution identity avirulence gen...