大白菜细胞核雄性不育两用系的利用途径探讨

不同来源的大白菜核不育两用系存在不同的遗传机制,其不育株与可育株都各略占50％并存。在利用上,50％不育株可作母本用于配制F_1杂种和核基因互作雄性不育系;50％可育株可用作F_1杂种父本、质核复合雄性不育保持系和核基因互作雄性不育临保系,同时自交还可快速选育自交系。在优势育种上,大白菜核不育两用系具有一定开发潜力和应用前景。

Discussion on Utilization Approaches of Nuclei Male Sterile Dual Purpose Line in Heading Chinese Cabbage

The genie male sterile daul purpose lines of heading Chinese cabbage from different sources have different hereditary mechanism, both sterile plants and ferfile ones make up 50%. In their utilization. 50% sterile plants car. be used as female parent in making up Fihybrids and as interactive genie male sterile line; 50% fertile plants can be used as male parent of Fihybrids, nucleo-cytoplasmic compound male sterile maintainer line, interactive genie male sterile temporary all maintainer line, and can breed self-bred. In F, hybrid breeding, the dual purpose line of Chinese cabbage has certain exploitation potential and Apphzation foreground.