Gene-Based Markers in Marker-Assisted Selection to Screen Tomato Genotypes Resistant to Fusarium Wilt, Late Blight, Verticillium Wilt, Leaf Mold, Bacterial Spot and Bacterial Speck

The tomato crop is exposed to serious losses due infection with several diseases and pests, which threaten production in Egypt worldwide. Therefore, selecting the germplasm resistant a specific pathogen by molecular markers closely linked resistance loci desirable goal of this study. In work, seven co-dominant targeting six genes (I-1, Ve, Ph3, Cf-9/Cf-4, Rx4, Pto) for main [ fusarium wilt (Fusarium oxysporum f. sp. lycopersici), verticillium (Verticillium dahliae V. alboatrum), late blight (Phytophthora infestans), leaf mold (Cladosporium fulvum), bacterial spot (Xanthomonas campestris pv. vesicatoria) speck (Pseudomonas syringae tomato)], respectively were determined. Theses differentiated among 19 genotypes (homozygote/heterozygote) susceptible (homozygote) pathogens. study supplied us novel lines multiple diseases, their pyramiding inside domesticated cultivars are suggested apply breeding programs against fungal diseases.