番茄SELF-PRUNING基因家族及株形调控功能研究进展

番茄SP（SELF-PRUNING）基因调控植株的有限型生长习性，其与金鱼草CEN（CENRORADIALIS）基因和拟南芥TFL1（TERMINAL FLOWER 1）基因同源，属于调控植物生长习性和开花的同一类基因。目前已报道了番茄SP基因家族8个成员（SP、SP9D、SP2I、SP3D、SP5G、SP6A、SIGI和SPGB），该基因家族能直接或间接调控番茄植株的生长习性，影响其株形。对番茄SP家族基因结构特征、亲缘关系、表达特性以及株形调控功能等研究进展进行综述，以期为调控番茄生长习性，获得紧凑型株系、实现均一化和现代机械化采收提供有效的技术支撑。

Advances in Research of the SELF-PRUNING Gene Family and Plant Architecture Regulatory Functions in Tomato

The SELF-PRUNING（SP）gene belongs to a class of genes that regulate plant growth habits and flowering，it has been found in tomato to regulate the determinate of growth habits. Furthermore，it is homologous to the CENRORADIALIS（CEN）gene in Antirrhinum majus L. and the TERMINAL FLOWER 1（TFL1）gene in Arabidopsis thaliana. At present，eight members of SP gene family（SP，SP9D，SP2I，SP3D，SP5G，SP6A，SIGI，and SPGB）have been reported. The studies have shown that the family genes should directly or indirectly regulate the growth habits and affect the shoot architecture of tomato plants. Therefore，in this paper，the research on the genetic structure features，genetic relationships，expression characteristics，and plant architecture regulation of the SP family in tomato is reviewed，in order to regulate for growth habits of tomato，obtaining compact strains，achieve homogenization and modern mechanized harvesting，and agronomic traits and provide effective technical support.