DNA markers for Fusarium head blight resistance QTLs its two wheat populations

Genetic resistance to Fusarium head blight (FHB), caused by Fusarium gramin earum, is necessary to reduce the wheat grain yield and quality losses caus ed by this disease. Development of resistant cultivars has been slowed by p oorly adapted and incomplete resistance sources and confounding environment al effects that make screening of germplasm difficult. DNA markers for FHB resistance QTLs have been identified and may be used to speed the introgres sion of resistance genes into adapted germplasm. This study was conduct ed to identify and map additional DNA markers linked to genes controlling FHB resistance in two spring wheat recombinant inbred populations, both segrega ting for genes from the widely used resistance source 'Sumai 3'.