Genomic regions associated with virulence in Setosphaeria turcica identified by linkage mapping in a biparental population

•Setosphaeria turcica is a significant pathogen of maize and sorghum.•Genetic basis of host specificity among S. turcica strains was investigated.•A biparental population of S. turcica was sequenced and genotyped by SkimGBS.•Virulence to each host mapped to a single locus on distinct chromosomes.•Genome of sorghum-specific strain contains a large deletion.