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新的玉米矮秆突变基因的鉴定与遗传分析

DOI: 10.7668/hbnxb.2008.05.005, PP. 23-25

Keywords: 玉米,矮秆基因,等位性分析

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Abstract:

Dt基因是玉米显性矮秆基因,被定位于玉米的第10条染色体长臂,目前报道的显性矮秆基因只有D8(Mpl1)和D9,它们分别位于染色体1的长臂和染色体5的短臂;Dt矮秆突变体属于赤霉素敏感型,含有D8,D9基因的材料对赤霉素不敏感;Dt基因与D8,D9基因的等位性分析表明,Dt与D8,D9为非等位基因,进一步证明了Dt基因是一个新发现的玉米显性矮秆基因。

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