Bao Xinru, Zhu Yunke, Li Guangcun, Liu Lu
Shanghai Collaborative Innovation Center of Agri-Seeds/Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China.
State Key Laboratory of Vegetable Biobreeding, Key Laboratory of Biology and Genetic Improvement of Tuber and Root Crop of Ministry of Agriculture and Rural Affairs, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, 12 Zhongguancun South Street, Haidian District, Beijing 100081, China.
Hortic Res. 2025 Jan 3;12(4):uhae360. doi: 10.1093/hr/uhae360. eCollection 2025 Apr.
Potatoes are valued as reliable crops due to their high carbohydrate content and relatively low farming demands. Consequently, significant attention has been directed towards understanding and controlling the life cycle of potato tubers in recent years. Notably, recent studies have identified self-pruning 6A (StSP6A) as a key component of the tuberigen, the mobile signal for tuber formation, produced in leaves and then transported underground to induce tuber formation in potatoes. Recent progress in comprehending the signaling mechanisms that regulate StSP6A by photoperiod and ambient temperature components, its long-distance transport into underground tissue, and its involvement in regulating stolon tuberization has advanced significantly. Consequently, the modulation of StSP6A and other possible tuberigen signals, along with their regulatory pathways, significantly impacts potato domestication and crop yield. This progress highlights the differential regulation of tuberigen signals and their potential functions in promoting tuber formation.
由于土豆碳水化合物含量高且种植要求相对较低，它们被视为可靠的作物。因此，近年来人们对了解和控制土豆块茎的生命周期给予了极大关注。值得注意的是，最近的研究已确定自剪接6A（StSP6A）是块茎形成素的关键成分，块茎形成素是一种促进块茎形成的移动信号，在叶片中产生，然后运输到地下以诱导土豆块茎的形成。在理解通过光周期和环境温度成分调节StSP6A的信号传导机制、其向地下组织的长距离运输以及其参与调节匍匐茎块茎形成方面，最近取得了显著进展。因此，对StSP6A和其他可能的块茎形成素信号及其调节途径的调控，对土豆驯化和作物产量有重大影响。这一进展突出了块茎形成素信号的差异调节及其在促进块茎形成中的潜在功能。
