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A new bacterial blight resistance gene Xa50(t) in the Xa4 locus confers resistance against Xanthomonas oryzae pv. oryzae in rice
A new bacterial blight resistance gene Xa50(t) in the Xa4 locus confers resistance against Xanthomonas oryzae pv. oryzae in rice
Rice bacterial leaf blight (BB), caused by Xanthomonas oryzae pv. oryzae (Xoo), leads to severe yield losses in rice. Resistance breeding is a sustainable approach to mitigate the impact of this disease. In this study, a novel BB resistance gene, Xa50(t), was identified in the germplasm line CX315. Genetic analysis revealed that the resistance is conferred by a dominant resistant gene, tentatively named Xa50(t), which provides broad-spectrum and robust resistance to multiple Xoo strains.

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