ZmWAK02 encoding an RD-WAK protein confers maize resistance against gray leaf spot

文献类型： 外文期刊

第一作者： Dai, Zhikang

作者： Dai, Zhikang;Pi, Qianyu;Liu, Yutong;Hu, Long;Li, Bingchen;Zhang, Bao;Li, Wenqiang;Gui, Songtao;Lai, Zhibing;Pi, Qianyu;Liu, Yutong;Zhang, Bao;Lai, Zhibing;Pi, Qianyu;Liu, Yutong;Zhang, Bao;Lai, Zhibing;Wang, Yanbo;Jiang, Min;Qi, Xin;Llaca, Victor;Fengler, Kevin;Thatcher, Shawn;Li, Ziwei;Liu, Xiangguo;Fan, Xingming;Lai, Zhibing

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关键词： gray leaf spot; maize; resistance; ZmWAK02

期刊名称：NEW PHYTOLOGIST （ 影响因子：9.4； 五年影响因子：10.5 ）

ISSN： 0028-646X

年卷期： 2023 年

页码：

收录情况： SCI

摘要： center dot Gray leaf spot (GLS) caused by Cercospora zeina or C. zeae-maydis is a major maize disease throughout the world. Although more than 100 QTLs resistant against GLS have been identified, very few of them have been cloned.center dot Here, we identified a major resistance QTL against GLS, qRglsSB, explaining 58.42% phenotypic variation in SB12xSA101 BC1F1 population. By fine-mapping, it was narrowed down into a 928 kb region. By using transgenic lines, mutants and complementation lines, it was confirmed that the ZmWAK02 gene, encoding an RD wall-associated kinase, is the responsible gene in qRglsSB resistant against GLS.center dot The introgression of the ZmWAK02 gene into hybrid lines significantly improves their grain yield in the presence of GLS pressure and does not reduce their grain yield in the absence of GLS.center dot In summary, we cloned a gene, ZmWAK02, conferring large effect of GLS resistance and confirmed its great value in maize breeding.

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