Identification of a QTL conferring resistance to the Subtropical Race 4 of Fusarium oxysporum f. sp. cubense in Calcutta 4 (Musa acuminata ssp. burmannica)

Foc TR4 and STR4 resistance sources are present in wild relatives of bananas.F2 populations segregated for Foc STR4 resistance.A new QTL conferring resistance to Foc STR4 was detected in Musa acuminata ssp. burmannica.Resistance QTLs provide a strategy for the development of Foc STR4 resistant cultivars.Diploids are important resources for breeding programs to combat Fusarium wilt of banana.