关键词: 玉米, 雄性不育, 基因克隆与机理解析, 工程不育技术, 杂种优势

Abstract: Maize (Zea mays L.) is the main grain crop with the largest planting area and the highest total yield in China, and it is also a model of heterosis utilization. However, compared with developed countries, it still has some outstanding problems in China, such as low average yield, lack of breakthrough varieties and high production cost of hybrid seeds. The application of male-sterile line can further improve the utilization efficiency of heterosis and ultimately increase the yield per unit area of maize. In this review, we summarize the latest advances of male sterility classification, gene cloning and mechanism analysis, molecular regulatory network construction and other aspects in maize, and introduce the strategies and application prospects of creating a series of novel biotechnology-based male-sterility technology systems. Therefore, it provides guidelines for the anther and pollen developmental biology and the male-sterility hybrid breeding and seed production in maize.

Key words: maize, male sterility, gene cloning and mechanism analysis, biotechnology-based male-sterility technology, heterosis