干旱是影响农业生产的重要灾害之一。利用转基因方法培育抗旱玉米新品种是一个有效的新手段。近年来，渗透调节物质合成相关基因、转录因子基因和信号传导相关基因在玉米抗旱转基因研究中获得新进展，同时伴侣蛋白基因、解毒酶相关基因、代谢相关基因和转运或通道蛋白基因在植物抗旱方面的作用机制研究正逐步推进，不但为玉米转基因抗旱研究提供了丰富的基因资源和基础材料，同时也为抗旱转基因玉米新品种培育奠定了坚实基础。归纳近年来基因工程技术在玉米抗旱研究方面的最新进展，结合相关研究工作，提出玉米抗旱转基因育种的思路和存在问题，为今后玉米的抗旱转基因研究提供参考。

Drought is a major disaster in agricultural production. It is therefore of remarkable significance to en-hance drought resistance of maize, transgenic technology is an efficient approach to go through. In recent years, many new progresses of drought-resistance breeding in maize have been achieved by introducing foreign genes which encoding osmotic adjustment substances synthases, transcription factors and signal transduction factors. Meanwhile, studies on mechanism in plant drought resistance are having been steadily pushed forwards, regarding chaperonins, detoxifying enzymes, metabolism-related enzymes and transporters. These works not only provide abundant gene resources and genetic materials for drought-resistance research of maize transformation, but also pave the way to breed new drought-resistance varieties of transgenic maize subsequently. The latest advances in this area and proposed new ideas for transgenic maize breeding were summarized, hopefully to offer the beneficial guidance for future research.

国家转基因生物新品种培育重大专项（2013ZX08003-001）