关键词: 玉米 转基因 分子标记 分子育种

Abstract:

Maize is one of most important cereal crops in China. Although conventional maize breeding has made a great contribution to increasing maize production, it has not fully satisfied the demand of elite hybrids. With the development of biotechnology, molecular breeding has become an important direction in maize breeding. In this paper, the backgrounds of molecular breeding, major research areas, the types of transgenic maize, and molecular marker techniques were briefly summarized, The mapping results of QTL associated with grain yield, agronomic, qualitative, biotic, and abiotic tolerance traits were reviewed as well as their applications. The concepts of association analysis and functional markers, and strategies of developing functional markers based on comparative genetics and bio-information were also introduced.

Key words: maize, transgenic, molecular markers, molecular breeding