乌塌菜核基因雄性不育系的选育及利用

摘要

In order to resolve the crosses breeding problem in utilizing hybrid vigor of savoy .A multiple allele inherited genetic male sterile line of Chinese cabbage was used as a source of male sterility ,and methods of continu-ous backcrossing and identifying of the genotypes were applied to transfer the male sterile line of savoy .A new ge-netic male sterile line GMS W with 100%male sterile plants and 100%male sterility was obtained ,which was simi-lar to the target line in horticultural characters .Two excellent hybridized combinations GMS W ×A2, GMSW ×A1 were selected ,which was superior to CK in yield .Resolved the puzzle that breeding and utilization of the genetic male sterile line in savoy .%为解决乌塌菜杂种优势利用中的杂交制种手段问题。以复等位基因遗传的小白菜核基因雄性不育系作不育源，采用杂交一代连续与乌塌菜轮回亲本回交，同时测交筛选基因型的方法，选育乌塌菜核基因雄性不育系。育成了具有100％不育株率和100％不育度，园艺学性状与目标品系相似的乌塌菜核基因雄性不育系GMSW ，利用该不育系配制并筛选出2个产量高于对照品种的优异杂交组合GMSW ×A2、GMSW ×A1。解决了乌塌菜雄性不育系转育和利用的难题。