在隐性上位互作核不育临时保持系12-148TAM中发现了乳白花自然突变体,经4～5代自交,同时测定其保持率,选育出乳白花临保系WF12-148TAM。经初步遗传分析,该乳白花性状由单隐性核基因控制。其对油菜生长没有明显的负效应,是一个优良的新型形态标记性状,在杂种优势利用中有良好的应用前景。 A natural mutant of Lagenaria was found in the recessive upper position interproblerable male sterile maintainer line 12-148TAM. After 4 to 5 generations of selfing, its maintainer rate was also determined, and the whitefowl maintainer WF12-148TAM was bred. After preliminary genetic analysis, this milk white flower trait is controlled by a single recessive nuclear gene. It has no obvious negative effect on rapeseed growth and is a good new morphological marker trait, which has a good application prospect in the utilization of heterosis.