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Leaf lesions and expression of Xa13 in the leaves of selected transgenic lines. a Lesion length of wild type and transgenic plants 14 days after inoculation. The resistance of transgenic plants expressing amiB is much higher than those expressing amiA. b Relative expression levels of the Xa13 gene determined by qRT-PCR in the leaves of wild type and selected transgenic plants with high resistance. c Relative expression levels of the Xa13 gene determined by qRT-PCR in the leaves of wild type and selected transgenic plants expressing amiA. Xa13 expression levels in the leaves of some lines decreased significantly compared to the wild type control, although the resistance of these plants was not or only slightly enhanced. Wt,Wild type.