ecreted-in-xylem1 (SIX1) secreted by Fusarium oxysporum f. sp. Lycopersici (Fol) during infection of tomato plants and plays a critical role as Avr (avirulence) gene in the interaction between the Fol and Tomato lines harboring I-3 resistant gene. SIX1 homologues genes are reported from some of F. oxysporum forma especials but steel ...