Research Progresses on the Regulation of Sucrose on Plant Branching
ZHOU Hui-Wen*, LUO Han-Min*, XIONG Fa-Qian, GAO Yi-Jing, LIU Jing, YANG Tai-Yi, YAN Hai-Feng**, QIU Li-Hang**
Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
Abstract Shoot branching is an important agronomic trait of plant architecture because it substantially affects the yield and value of the plant. Branching characteristics are affected by many factors, and sucrose is the most popular research topics affecting the branching characteristics of plants. A certain number of studies have shown that sucrose not only serves as a carbon source to provide energy for the meristematic growth of plants, but also is an important signaling molecule. In this review, the main pathways through which sucrose promotes branching are summarized. Among them, strigolactone, auxin, and cytokinin are the most important hormones in the process of sucrose promoting branching, and transcription factors such as teosinte branched 1 (TB1) and branched 1 (BRC1) also play an important role. This paper provides a basis for the theory of plant branching and constructing a reasonable plant population.
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