Genome-Wide Association Mapping of Seedling Heat Tolerance in Winter Wheat

Heat stress during the seedling stage of early-planted winter wheat (Triticum aestivum L.) is one of the most abiotic stresses of the crop restricting forage and grain production in the southern Plains of the United States. To map quantitative trait loci (QTLs) and identify single nucleotide polymorphism (SNP) markers associated with seedling heat tolerance, a genome-wide association mapping study (GWAS) was conducted using 200 diverse...