Zmspl10, Zmspl14, And Zmspl26 Act Together To Promote Stigmatic Papilla Formation In Maize Through Regulating Auxin Signaling And Zmwox3a Expression

    July 2024 in “ New Phytologist ”
    Dexin Kong, Yifeng Jing, Ya-Ping Duan, Mengqi He, Hui Ding, Heying Li, Zhuojun Zhong, Zhigang Zheng, Xiuying Fan, Xuan Pan, Yanqun Li, Mei Bai, Xinjian Li, Min‐Hua Luo, Weicong Xue, Xiaoming Zhang, Xin Xu, Yateng Yuan, Ting Zou, Lihong Chen, Wenyan Ding, Yongping Zhao, Baobao Wang, Hong Wu, Qing Liu, Haiyang Wang
    TLDR ZmSPL10, ZmSPL14, and ZmSPL26 genes are essential for forming maize structures needed for pollen capture and kernel production.
    The study explores the roles of ZmSPL10, ZmSPL14, and ZmSPL26 in maize, highlighting their collective importance in promoting stigmatic papilla formation through the regulation of auxin signaling and ZmWOX3A expression. These transcription factors are crucial for normal kernel setting, with mutants showing reduced kernel numbers due to defective papilla development. ZmSPL10 and ZmSPL14 have more dominant roles compared to ZmSPL26. The research indicates that these genes regulate auxin-related genes essential for papilla development, and their deficiency leads to impaired formation. The study also suggests that the regulatory mechanism is conserved in cereal crops, offering potential for genetic improvements in pollination efficiency and yield.
    Discuss this study in the Community →