Development of the Recessive Genic Male Sterility Line and Its Maintainer with the Genetic Background of ZheShuang 72 in Brassica Napus by Marker-Assited Selection
A recessive epistatic genic male sterility (REGMS) two-type line,9012AB, has been used for rapeseed hybrid seed production. The male sterility of 9012AB is controlled by two recessive sterile genes ms3、ms4 with one recessive suppressor gene (rf). As the sterility is determined by three recessive genes and the existence of gene interaction, the breeding procedure for REGMS lines and temporary maintainer lines is very complicated, and the identification of the different genotypes with expected traits in backc...