This paper describes the results of marker-mediated screening apple varieties for QTL FBF7 fire blight resistance. We detected at least one marker out three in 12 (85.7%) and two markers 5 (35.7%). The target fragments studied Antonovka obiknovennaya Galarina are missing. Indicating presence (GE-8019, AE10-375 CH-F7-Fb1) were identified Bylina, Rozhdestvenskoe, Uspenskoe Charodeyka varieties, w...