Necrotrophic fungal diseases Septoria nodorum blotch (SNB) and Tan or Yellow Spot cause marked reductions in wheat quality and yield. Quantitative trait loci (QTL) associated with both diseases have been identified in bi- and multiparent populations, association mapping panels (AMPs) and global collections challenged with pathogen isolates and genotyped with molecular markers [Single Nucleotide Polymorphisms (SNP), Diversity Arrays Technology (DArT), Simple Sequence Repeats (SSR) or Expressed Sequence Tags (EST)].

Hence, across studies, a given QTL might have varied centiMorgan (cM) map locations on the same chromosome. A meta-analysis of SNB and Tan spot QTL was carried out at the Centre for Crop and Disease Management (CCDM) located at Curtin University in Western Australia. A total of 153 published SNB and Tan spot (TS) QTL were projected onto a consensus map and helped identify RefSeq v2.0 assembly-based physical locations of 10 meta-QTL (MQTL) regions on chromosomes 1B, 2D, 4B, 4D, 5A and 5B in addition to potential candidate genes for SNB and TS.

The current study provides a consensus on genetic and physical locations of MQTL identified for SNB and Tan Spot, besides their associated candidate genes, and should serve as a resource for fine-mapping studies of both diseases.