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

文献类型： 外文期刊

作者： Lu, Chuntian 1 ; Du, Jie 1 ; Chen, Heyu 1 ; Gong, Shuangjun 3 ; Jin, Yinyu 1 ; Meng, Xiangru 1 ; Zhang, Ting 1 ; Fu, Bisheng 2 ; Molnar, Istvan 5 ; Holusova, Katerina 6 ; Said, Mahmoud 6 ; Xing, Liping 1 ; Kong, Lingna 1 ; Dolezel, Jaroslav 6 ; Li, Genying 8 ; Wu, Jizhong 2 ; Chen, Peidu 1 ; Cao, Aizhong 1 ; Zhang, Ruiqi 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Agron, State Key Lab Crop Genet & Germplasm Enhancement &, Nanjing 210095, Peoples R China

2.Zhongshan Biol Breeding Lab, 50 Zhongling St, Nanjing 210014, Jiangsu, Peoples R China

3.Hubei Acad Agr Sci, Inst Plant Protect & Soil Sci, Wuhan 430064, Peoples R China

4.Jiangsu Acad Agr Sci, Inst Germplasm Resources & Biotechnol, Jiangsu Prov Key Lab Agrobiol, Nanjing 210014, Peoples R China

5.Eotvos Lorand Res Network ELKH, Agr Inst, Ctr Agr Res, H-2462 Martonvasar, Hungary

6.Czech Acad Sci, Ctr Plant Struct & Funct Genom, Inst Expt Bot, Slechtitelu 31, CZ-77900 Olomouc, Czech Republic

7.Agr Res Ctr, Field Crops Res Inst, 9 Gamma St, Cairo 12619, Egypt

8.Shandong Acad Agr Sci, Crop Res Inst, Jinan 250100, Peoples R China

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

页码：

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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