EP3663402A1 - POWDERY MILDEW RESISTANCE MARKER OF CUCURBITA MAXIMA, POWDERY-MILDEW-RESISTANT CUCURBITA MAXIMA, METHOD FOR PRODUCING POWDERY-MILDEW-RESISTANT CUCURBITA MAXIMA IN WHICH SAME IS USED, AND METHOD FOR IMPARTING POWDERY MILDEW RESISTANCE TO CUCURBITA MAXIMA