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1975年在中国萝卜(Raphanus sativus L.)上发现雄性不育株后,采用测交、连续回交和父本株自交的方法,已先后育成了77-01A(白皮),7416A(绿皮)、64A (红皮)、01-11A(绿皮)等不同类型的雄性不育系,用于F_1的种子生产。在测交过程中,发现不同品种对雄性不育性的保持能力差异显著。 我们的研究结果表明,萝卜雄性不育性的遗传属于核、质互作控制类型,细胞核内有两对ms基因,雄性不育系的基因型为Sms_1 sm_1 sm_2 ms_2,保持系的基因型为Nms_1 ms_1 ms_2 ms_2。初步证明,国内的48A、4-01A、青A、7416A等雄性不育系的基因型是相同的。根据以上研究结果,提出了萝卜雄性不育系的转育方案。
After the male-sterile plants were found on Chinese radish (Raphanus sativus L.) in 1975, they were fertilized with 77-01A (white), 7416A 64A (red), 01-11A (green) and other types of male sterile lines were used for the seed production of F_1. In the cross test, we found significant differences in the ability of different breeds to maintain male sterility. Our results showed that the genotype of radish male sterility belonged to the type of nuclear and cytoplasmic interaction with two pairs of ms genes in the nucleus. The genotype of male sterile line was Sms_1 sm_1-sm_2 ms_2, and the maintainer line was Nms_1 ms_1 ms_2 ms_2. Preliminary proof, the domestic 48A, 4-01A, green A, 7416A and other male sterile lines genotypes are the same. Based on the above research results, the breeding program of radish male sterile lines was proposed.