DEVELOPMENT OF FUSARIUM OXYSPORUM F. SP. LYCOPERSICI (FOL) AND FUSARIUM OXYSPORUM F.SP. RADICIS LYCOPERSICI (FORL) RESISTANT TOMATO LINES WITH THE AID OF MARKER ASSISTED SELECTION

Abstract

Molecular markers have extensively been used along with the classical methods in tomato breeding. Many molecular markers developed for the resistance to biotic stresses, especially the ones controlled by a single gene or major Quantitative Trait Loci (QTL). The objective of this study was to present potential use of the molecular markers to develop resistant lines against Fusarium spp. Hence, the molecular markers, linked to Fusarium oxysporum f. sp. Lycopersici (FOL) and Fusarium oxysporum f.sp. radicis lycopersici (FORL) were tested for FOL I-2, and I-3 genes for Fusarium oxysporum f. sp. Lycopersici, and FORL Frl gene for Fusarium oxysporum f.sp. radicis lycopersici. At the end of the breeding program I-2, I-3, and Frl genes were pyramided at the same tomato lines. Results showed that these markers can aid development of tomato lines resistant against multiple races of Fusarium spp in a MAS program