Abstract:

In order to fully explore and use the potential of molecular marker-assisted breeding in maize, this paper analyzed the factors influencing the efficiency of marker assisted breeding, summarized the methods for developing markers used in breeding practice, elucidated the application status of quality and resistance/tolerance breeding in maize. The paper also listed some useful tools and software to assist experiment design and analysis. Before ending, the paper thoroughly analyzed the problems existing in marker-assisted breeding, and suggested that more effort should be laid on maize gene mapping research for important agronomic traits, and the application scope of molecular marker assisted breeding should be expanded.

Key words: Zea mays L., molecular marker-assisted breeding, marker development, quantitative trait loci

摘要：

为了充分挖掘和利用分子标记辅助育种在玉米中的应用潜力，分析了影响标记辅助育种效率的诸多因素，总结了可用于育种实践的标记开发方法，阐述了其在玉米品质和抗性育种中的应用现状，并列举了一些可用于辅助分析的工具软件。最后对玉米标记辅助育种现存问题进行了深入解析，提出我国应大力开展玉米重要农艺性状的基因定位研究，并拓展分子标记辅助育种的应用范畴。

关键词: 玉米, 分子标记辅助育种, 标记开发, 数量性状基因座