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The complementary interaction of Rf-genes in the cytoplasm of CMS maize of the moldavian type
[Free Full Text (pdf)]  Genetic control of moldavian type CMS was studied in inter-lines crosses Ã380-3-1M×A392 and Ã380-3-1M×W8, where pollen restoration is observed in spite of the absense of the dominant gene Rf3. It is determined that in these exceptional cases sterilizing action of the cytoplasm is overcome by two dominant genes-restorers marked as RfA and RfB. The RfA-gene acts in the diploid cells of sporophyte, RfB-gene reveals its effect in the haploid genotype of microspores. Both genes are incompatible in male and female gametes as they are allelic. Evidently the gene RfB can intensify the action of the main gene Rf3 and performs the role of its modifier.
Tsitologiya i Genetika 2003, vol. 37, no. 3, pp. 16-23
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