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Wheat leaf rust is an important disease worldwide. Growing resistant cultivars is an effective means to control the disease. In the present study, 244 recombinant inbred lines from Zhou 8425B/Chinese Spring cross were phenotyped for leaf rust severities during the 2011–2012, 2012–2013, 2013–2014, and 2014–2015 cropping seasons at Baoding, Hebei province, and 2012–2013 and 2013–2014 cropping seasons in Zhoukou, Henan province. The population was genotyped using the high-density Illumina iSelect 90K SNP assay and SSR markers. Inclusive composite interval mapping identified eight QTL, designated as  QLr.hebau-2AL ,  QLr.hebau-2BS ,  QLr.hebau-3A ,  QLr.hebau-3BS ,  QLr.hebau-4AL ,  QLr.hebau-4B ,  QLr.hebau-5BL,  and  QLr.hebau-7DS , respectively.  QLr.hebau-2BS ,  QLr.hebau-3A ,  QLr.hebau-3BS,  and  QLr.hebau-5BL  were derived from Zhou 8425B, whereas the other four were from Chinese Spring. Three stable QTL on chromosomes 2BS, 4B and 7DS explained 7.5–10.6%, 5.5–24.4%, and 11.2–20.9% of the phenotypic variance, respectively.  QLr.hebau-2BS  in Zhou 8425B might be the same as  LrZH22  in Zhoumai 22;  QLr.hebau-4B  might be the residual resistance of  Lr12 , and  QLr.hebau-7DS  is  Lr34 .  QLr.hebau-2AL ,  QLr.hebau-3BS ,  QLr.hebau-4AL,  and  QLr.hebau-5BL  are likely to be novel QTL for leaf rust. These QTL and their closely linked SNP and SSR markers can be used for fine mapping, candidate gene discovery, and marker-assisted selection in wheat breeding.

QTL Mapping of Adult-Plant Resistance to Leaf Rust in the Wheat Cross Zhou 8425B/Chinese Spring Using High-Density SNP Markers