Zhennan Xu, Zhiqiang Zhou, Zixiang Cheng, Yu Zhou, Feifei Wang, Mingshun Li, Gongjian Li, Wenxue Li, Qingguo Du, Ke Wang, Xin Lu, Yuxin Tai, Runyi Chen, Zhuanfang Hao, Jienan Han, Yanping Chen, Qingchang Meng, Xiaomin Kong, Shuanggui Tie, Chunhua Mu, Weibin Song, Zhenhua Wang, Hongjun Yong, Degui Zhang, Haiyang Wang, Jianfeng Weng, Xinhai Li
Maize rough dwarf disease (MRDD), caused by maize rough dwarf virus (MRDV) or rice black-streaked dwarf virus (RBSDV), seriously threatens worldwide production of all major cereal crops, including maize, rice, wheat and barley. Here we report fine mapping and cloning of a previously reported major quantitative trait locus (QTL) (qMrdd2) for RBSDV resistance in maize. Subsequently, we show that qMrdd2 encodes a G2-like transcription factor named ZmGLK36 that promotes resistance to RBSDV by enhancing jasmonic acid (JA) biosynthesis and JA-mediated defence response...
September 14, 2023: Nature Plants