【摘要】萍乡显性核不育水稻（PingxiangDominantGenicMaleSterileRice,PDGMSR）是在水稻中首次发现的显性核不育材料,其育性由两对显性基因互作控制,一对是萍乡显性核不育基因Ms-p,另一对是显性上位恢复基因（dominantepistaticfertilityrestorergene,Rfe）。两者共同存在时显性上位恢复基因能抑制不育基因的表达,从而使育性表现可育。本实验用一个对萍乡显性核不育水稻有恢复能力的水稻品种E823与萍乡显性核不育水稻配制杂交组合,将（萍乡核不育水稻/E823）F2作为定位群体,根据F3株系的育性分离,选择育性分离株系对应F2单株（
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