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AbstractThe Cre/lox site-specific recombination controls the excision of a target DNA segment by recombination between two lox sites flanking it, mediated by the Cre recombinase. We have studied the functional expression of the Cre/lox system to excise a transgene from the rice genome. We developed transgenic plants carrying the target gene, hygromycin phosphotransferase (hpt) flanked by two lox sites...