玉米开花期调控机制研究进展

Research Progress on the Regulation Mechanism of Maize Flowering Period

开花期对玉米非常重要,不仅影响玉米的生长区域适应性、对各种逆境的抗性,另外对于玉米的产量、质量、营养价值等多个性状都具有重要的影响。根据玉米开花期调控途径的研究报道,玉米开花期可分为4条途径:光周期途径(photoperiod pathway)、自主途径(autonomous pathway)、赤霉素途径(gibberellin pathway)和年龄途径(age pathway),4条途径既独立存在又相互影响,共同调节玉米的开花时间。总结并整理玉米的开花期调控途径,对于改良热带种质资源使其适应我国温带地区、培育优良品种具有重要的参考价值和指导意义。

Flowering is very important for maize.It not only affects the adaptability of maize to growth area and resistances to various stresses, but also has very important effects on traits such as product quality, yield and nutritional value.According to the researches, the regulatory of maize flowering time can be divided into four pathways: photoperiod pathway, autonomous pathway, gibberellin pathway, and age pathway.The four pathways are relatively independent, and there are also some mutual influence and interaction among them.Reviewing the regulation approaches of maize flowering time will be helpful for improving tropical germplasm resources to adapt to temperate zone in China and cultivating good varieties.