Genome-wide association mapping reveals potential novel loci controlling stripe rust resistance in a Chinese wheat landrace diversity panel from the southern autumn-sown spring wheat zone

Abstract Background Stripe rust, caused by the fungal pathogen Puccinia striiformis f. sp. tritici ( Pst ), is a serious foliar disease of wheat. Identification novel stripe rust resistance genes and cultivation resistant cultivars are considered to be most effective approaches control this disease. In study, we evaluated infection type (IT), severity (DS) area under progress curve (AUDPC) 143 Chinese wheat landrace accessions for resistance. Assessments were undertaken in five environments at adult-plant stage with mixture races field conditions. addition, IT was assessed seedling two prevalent (CYR32 CYR34) controlled greenhouse environment. Results Seventeen showed stable high-level across all tests. Four CYR32 CYR34 stage. Combining phenotypic data from trials 6404 markers that covered entire genome, detected 17 quantitative trait loci (QTL) on 11 chromosomes associated 15 QTL seven IT, final (FDS) or AUDPC four chromosomes, which explained 9.99–23.30% variation, simultaneously Integrating linkage map wheat, 27 overlapped previously reported QTL, whereas one conferring resistance, respectively, mapped distantly thus may loci. Conclusions Our results provided an integrated overview resources diversity panel southern autumn-sown spring zone China. The identified will useful ongoing effort develop new strong rust.