Wheat Pm55 alleles exhibit distinct interactions with an inhibitor to cause different powdery mildew resistance

文献类型： 外文期刊

第一作者： Lu, Chuntian

作者： Lu, Chuntian;Du, Jie;Chen, Heyu;Jin, Yinyu;Meng, Xiangru;Zhang, Ting;Xing, Liping;Kong, Lingna;Chen, Peidu;Cao, Aizhong;Zhang, Ruiqi;Lu, Chuntian;Du, Jie;Chen, Heyu;Jin, Yinyu;Meng, Xiangru;Zhang, Ting;Fu, Bisheng;Xing, Liping;Wu, Jizhong;Cao, Aizhong;Zhang, Ruiqi;Gong, Shuangjun;Fu, Bisheng;Wu, Jizhong;Molnar, Istvan;Molnar, Istvan;Holusova, Katerina;Said, Mahmoud;Dolezel, Jaroslav;Said, Mahmoud;Li, Genying

作者机构：

期刊名称：NATURE COMMUNICATIONS （ 影响因子：16.6； 五年影响因子：17.0 ）

ISSN：

年卷期： 2024 年 15 卷 1 期

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收录情况： SCI

摘要： Powdery mildew poses a significant threat to wheat crops worldwide, emphasizing the need for durable disease control strategies. The wheat-Dasypyrum villosum T5AL5 V#4 S and T5DL5 V#4 S translocation lines carrying powdery mildew resistant gene Pm55 shows developmental-stage and tissue-specific resistance, whereas T5DL5 V#5 S line carrying Pm5V confers resistance at all stages. Here, we clone Pm55 and Pm5V, and reveal that they are allelic and renamed as Pm55a and Pm55b, respectively. The two Pm55 alleles encode coiled-coil, nucleotide-binding site-leucine-rich repeat (CNL) proteins, conferring broad-spectrum resistance to powdery mildew. However, they interact differently with a linked inhibitor gene, SuPm55 to cause different resistance to wheat powdery mildew. Notably, Pm55 and SuPm55 encode unrelated CNL proteins, and the inactivation of SuPm55 significantly reduces plant fitness. Combining SuPm55/Pm55a and Pm55b in wheat does not result in allele suppression or yield penalty. Our results provide not only insights into the suppression of resistance in wheat, but also a strategy for breeding durable resistance.

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