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Embryogenic cell suspension was developed from in vivo anthers of seedless grape cv. Sugarone. Agrobacterium genetic co-transformation was realized with two vectors carried respectively two different reporter genes: hpt and nptII, and three (1+2) agronomicaly beneficial genes encoding for proteins that are involved in fungus disease resistance. The effciency of transformation procedure and integraton of foreign genes was verified by hystochemical assay as a first step after insertion in embryogenic suspension two different constructs with Gus-reporter gene under control of different promotors. PCR assay and Southern blot analysis were used to confirm the co-transformation in regenerated grape plants.
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HortScience