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我国７个棉花细胞质雄性不育系的育性恢复受２个独立遗传的恢复基因控制。笔者建议把它们定名为Ｒｆ１和Ｒｆ２；Ｒｆ１为完全显性，Ｒｆ２为部分显性；Ｒｆ１的恢复效应大于Ｒｆ２。不育株的基因型为Ｓ（ｒｆ１ｒｆ１ｒｆ２ｒｆ２）和Ｓ（ｒｆ１ｒｆ１Ｒｆ２ｒｆ２），可育株的基因型为Ｓ（Ｒｆ１－Ｒｆ２－）、Ｓ（Ｒｆ１－ｒｆ２ｒｆ２）和Ｓ（ｒｆ１ｒｆ１Ｒｆ２Ｒｆ２）。经育性基因的等位性测验，可将７个不育系分为两类：第一类是湘远４－Ａ、中１２Ａ和显无Ａ，在２个育性恢复基因位点上与引自美国的哈克尼西棉细胞质雄性不育系ＤＥＳ－ＨＡＭＳ２７７的２个育性恢复基因Ｒｆ１和Ｒｆ２等位且性质相同；第二类是１０４－７Ａ、ＮＭ－１Ａ、ＮＭ－２Ａ和ＮＭ－３Ａ不育系，在ｒｆ１位点上有一个复等位基因ｒｆｍ１，杂合等位基因ｒｆ１ｒｆｍ１的不育效应大于纯合态ｒｆ１ｒｆ１或ｒｆｍ１ｒｆｍ１的效应，即ｒｆ１ｒｆｍ１对Ｒｆ２－起隐性上位作用，从而使等位性测验群体中的不育株比例有所上升
The fertility restoration of seven cotton cytoplasmic male sterile lines in China was controlled by two independent genetic restorer genes. The authors recommend that they be named Rf1 and Rf2; Rf1 is completely dominant, Rf2 is partially dominant; the recovery effect of Rf1 is greater than Rf2. The genotypes of sterile plants were S (rf1rf1rf2rf2) and S (rf1rf1Rf2rf2), and the fertile plants were S (Rf1-Rf2 -), S (Rf1-rf2rf2) and S (rf1rf1Rf2Rf2). The alleles of fertility genes could be divided into two groups: the first one is Xiangyao 4-A, the second one is 12A and the second is none, and the two fertility restore loci Two fertility restorer genes, Rf1 and Rf2, derived from the USA’s Huckish-West cytoplasmic male sterility line DES-HAMS277 were of the same allelic nature and of the same nature. The second category was 104-7A, NM-1A, NM-2A and NM -3A sterile line. There was a complex allele rfm1 at rf1 locus. The sterility of rf1rfm1 with heterozygous allele was greater than that of homozygous rf1rf1 or rfm1rfm1. That is, rf1rfm1 played a recessive role on Rf2-, As a result, the proportion of sterile plants in the allele test population increased