Disease resistance gene pyramiding is a widely used strategy to enhance durability. Marker-assisted selection (MAS) was applied pyramide the alleles Run1 and Ren3, which confer against grape powdery mildew (Erysiphe necator). Two F1 full-sibs carrying Ren3 in heterozygosity were selfed develop breeding populations analysis. From 637 genotyped plants, 313 (50.6%) had pyramided. Seven (1.1%) of t...

None (Members of Erysiphales cause powdery mildew diseases on wide host rang and produce whitish primary mycelium on surface of infected parts. Based on microscopic study of one specimen on Jasminum sp., structures of fungus including conidiophores and conidia were observed. Foot cells of conidiophores were cylindrical or curved in basal part, followed by 1-2 shorter cells. Conidia were ellipso...