利用近等基因系定位玉米粗缩病抗性QTL及分子标记辅助选择的研究

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玉米粗缩病(maize rough dwarf disease, MRDD)是严重危害玉米生产的一种病害。在我国,玉米粗缩病的主要病原是水稻黑条矮缩病毒(rice black-streaked dwarf virus,RBSDV),灰飞虱为其主要传毒媒介。近年来,玉米粗缩病在我国大面积发生,造成了很大危害。培育抗病品种是防治粗缩病最经济有效的方法,但常规育种方法培育抗病品种周期长,抗病性鉴定受环境影响较大,增大了抗病育种工作难度。利用玉米粗缩病抗性QTL进行分子标记辅助选择,不受时间、环境限制,能加
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