Fig. 3

Loss of heterozygosity in CH5 mutants. Regions containing markers for which only the strain H allele is present are shown in green, those for which only the strain C allele is present are shown in blue and those that are heterozygous are shown in grey. The number of markers and cumulative scaffold distance associated with each LOH event are indicated (see Additional file 2 for a description of how cumulative scaffold length was calculated). a Genotypes of LG19 markers in MS45 and MS48. AvrM1 and AvrM4 were inherited from strain H and co-segregate in the CH5 F₂ family [48]. We show later in this paper that they are conferred by a single gene, which we have called AvrM14. b Genotypes of LG5 and LG27 markers in MS51. AvrN was inherited from strain C (this study) and AvrM was inherited from strain H [48]. Therefore, MS51 has retained the avirulence allele of AvrM but has lost the avirulence allele of AvrN