分子标记技术在玉米大斑病抗性基因研究中的应用

The Application of Molecular Markers Technology in Resistance Gene of NCLB on Maize

分子标记技术是植物抗性基因研究的重要手段之一。简要介绍了目前常用的几种DNA分子标记技术。论述了玉米大斑病抗性基因的来源及抗性表现,其中受显性基因控制的质量抗性基因有Ht1、Ht2、Ht3和HtN;玉米大斑病数量抗性基因涉及12条染色体,对大斑病各生理小种均有效。分别阐述了对玉米大斑病质量抗性基因和数量抗性基因的定位,并对分子标记技术在今后的应用进行了展望。

The molecular markers technology is one of the most important methods in plant resistant gene research. This article briefly introduced several kinds of DNA molecular markers technology in common use. Elaborated the origin of resistence gene and performance on NCLB which controlled by the dominant quality resistance gene were Ht1, Ht2, Ht3 and HtN. The quantity resistant gene of NCLB involves 12 chromosomes were all effective to the physiologic races. Elaborated respectively to the quality and quantity resistant gene localization of NCLB and carried on the prospects applications of the molecular markers technology in the future.