通过对“Ch型”谷子显性核不育的遗传研究证实“Ch型”的不育性与“澳大利亚谷”的细胞质无关,其育性是受两对显性连锁基因Ms-和Rf-上位互作控制的。其中Ms是显性不育基因。Rf是显性上位基因,当二者共同存在时,显性上位基因能抑制显性不育基因的表达,从而使不育表现可育。这种由杂交而来,并能找到“恢复系”的显性核不育是基因互作型显性核不育的典型实例。同时,作者提出和实现显性核不育纯合一型系(简称纯合一型系)、隐性纯合可育系(简称纯合可育系)和显性纯合上位系(简称纯合上位系)配套的“三系制种法”配制出杂交种,为显性核不育和基因多种互作形式在杂种优势育种中的直接利用展示了光明的前景。 The genetic studies on the dominant genic male sterility of the “Ch type” millet confirmed that the “Ch type” sterility is unrelated to the cytoplasm of the “Australian Valley”, and its fertility is controlled by two pairs of dominantly linked genes Ms- and Rf- Interactive control. Where Ms is a dominant male sterile gene. Rf is a dominant epistatic gene. When the two are co-existing, the dominant epistasis gene can suppress the expression of the dominant-negative gene and make the infertility behave fertile. The dominant male sterility, derived from crossing and finding a “restorer line,” is a typical case of dominant-genic male sterility. At the same time, the author proposed and implemented the dominant genic male sterility homozygous type (referred to as homozygous type), recessive homozygous fertile line (referred to as homozygous fertile line) and dominant homozygous epistasis Close system) supporting the “three lines of law,” the preparation of hybrids, for the dominant nuclear sterile and gene multiple forms of interaction in the heterosis breeding direct use shows a bright future.