Genome-wide identification and characterization of potato NRL gene family and functional analysis of StNRL-6 in response to Phytophthora infestans
文献类型： 外文期刊
作者： Cheng, Dong 1 ; Qiu, Huishan 1 ; Zhou, Dan 1 ; Lin, Tianyu 1 ; Liu, Lang 1 ; Nie, Jiahui 1 ; He, Qin 1 ; Tian, Zhendong 1 ;
作者机构： 1.Huazhong Agr Univ HZAU, Natl Key Lab Germplasm Innovat & Utilizat Hort Cro, Wuhan, Peoples R China
2.Hubei Hongshan Lab HZAU, Wuhan, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Potato Biol & Biotechnol HZAU, Wuhan, Peoples R China
4.Potato Engn & Technol Res Ctr Hubei Prov HZAU, Wuhan, Peoples R China
5.Guangxi Acad Agr Sci GXAAS, Cash Crops Res Inst, Nanning, Guangxi, Peoples R China
6.Guangxi Zhuang Autonomous Reg Sericultural Technol, Nanning, Guangxi, Peoples R China
期刊名称：PHYSIOLOGIA PLANTARUM （ 影响因子：3.6； 五年影响因子：5.4 ）
ISSN： 0031-9317
年卷期： 2024 年 176 卷 6 期
页码：
收录情况： SCI
摘要： NPH3/RPT2-Like (NRL) proteins, as blue light receptor phototropin-interacting modules, regulate various aspects of physiological responses in light signaling. However, little information is available on NRL family members regulating plant immunity, especially concerning plants' late blight resistance to Phytophthora infestans. In this study, a systematical analysis of the potato NRL family was performed. In total, 35 StNRL genes were identified and phylogenetically classified into six subfamilies. Twelve StNRL genes were defined as seven pairs of segmental duplication, which was the major evolutionary driving force for StNRL expansion. Synteny analysis between the genomes of potato and Arabidopsis thaliana, tomato, and rice provided insights into evolutionary characteristics. Two StNRL family members, StNRL-6 and StNRL-7, interacted with the blue light photoreceptor Stphot1 and negatively regulated potato and Nicotiana benthamiana resistance against P. infestans. Moreover, the key motif RxSxS identified in the NRL family member is essential for StNRL-6 to interact with Stphot1 and enhance plant susceptibility to P. infestans. This comprehensive analysis of the StNRL family provides valuable information to elucidate key molecular mechanisms on how blue light regulates plant immunity.
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