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Dai Z, Pi Q, Liu Y, Hu L, Li B, Zhang B, Wang Y, Jiang M, Qi X, Li W, Gui S, Llaca V, Fengler K, Thatcher S, Li Z, Liu X, Fan X, Lai Z. ZmWAK02 encoding an RD-WAK protein confers maize resistance against gray leaf spot. New Phytol 2024; 241:1780-1793. [PMID: 38058244 DOI: 10.1111/nph.19465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 11/21/2023] [Indexed: 12/08/2023]
Abstract
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. Here, we identified a major resistance QTL against GLS, qRglsSB, explaining 58.42% phenotypic variation in SB12×SA101 BC1 F1 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. 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. 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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Affiliation(s)
- Zhikang Dai
- National Key Laboratory of Crop Genetic Improvement, 430070, Wuhan, China
| | - Qianyu Pi
- National Key Laboratory of Crop Genetic Improvement, 430070, Wuhan, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, 430070, Wuhan, China
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, 518000, Shenzhen, China
| | - Yutong Liu
- National Key Laboratory of Crop Genetic Improvement, 430070, Wuhan, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, 430070, Wuhan, China
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, 518000, Shenzhen, China
| | - Long Hu
- National Key Laboratory of Crop Genetic Improvement, 430070, Wuhan, China
| | - Bingchen Li
- National Key Laboratory of Crop Genetic Improvement, 430070, Wuhan, China
| | - Bao Zhang
- National Key Laboratory of Crop Genetic Improvement, 430070, Wuhan, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, 430070, Wuhan, China
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, 518000, Shenzhen, China
| | - Yanbo Wang
- Liaoning Academy of Agricultural Sciences, 110161, Shenyang, China
| | - Min Jiang
- Liaoning Academy of Agricultural Sciences, 110161, Shenyang, China
| | - Xin Qi
- Liaoning Academy of Agricultural Sciences, 110161, Shenyang, China
| | - Wenqiang Li
- National Key Laboratory of Crop Genetic Improvement, 430070, Wuhan, China
| | - Songtao Gui
- National Key Laboratory of Crop Genetic Improvement, 430070, Wuhan, China
| | | | | | | | - Ziwei Li
- Dehong Tropical Agriculture Research Institute of Yunnan, 678699, Ruili, China
| | - Xiangguo Liu
- Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, 130033, Changchun, Jilin, China
| | - Xingming Fan
- Institue of Food Crops, Yunnan Academy of Agricultural Sciences, 650201, Kunming, China
| | - Zhibing Lai
- National Key Laboratory of Crop Genetic Improvement, 430070, Wuhan, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, 430070, Wuhan, China
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, 518000, Shenzhen, China
- Hubei Hongshan Laboratory, 430070, Wuhan, China
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