茎瘤芥叶片刺毛与缺刻的遗传分析

【作者】 刘义华； 冷蓉； 张召荣； 高明泉；

【机构】 重庆市涪陵农业科学研究所；

【摘要】 以5个茎瘤芥品种为亲本试材,采用双亲本杂交遗传设计,运用P1、P2、F1、 RF1、F2、B1、B27个世代材料,对茎瘤芥2个叶性状(叶片刺毛、缺刻)的遗传进行了研究。结果表明:叶片有缺刻对无缺刻、有刺毛对无刺毛均为不完全显性。叶片刺毛和缺刻在不同的杂交组合中,有不同的遗传行为;叶片有刺毛对无刺毛在余菠×永安小叶中是由一对核基因控制, 而在泡叶×永安小叶中是由2对具有重叠作用的核基因控制;叶片有缺刻对无缺刻在余菠×永安小叶中是由一对核基因控制,而在涪丰14×浙桐中则是由2对具有重叠作用的核基因控制。更多还原

【Abstract】 Hereditary studies on two leaf characters (leaf dissection and setose) were carried out in P1 , P2, F1 , RF1, F2, B1 and B2 generations using 5 varieties as parents in tumor-ous stem mustard. The results showed that leaf dissection and setose were dominant characters, but non-setose and non-dissection characters were recessive. Setose vs non-setose and dissection vs non-dissection were controlled by one dominant nuclear gene in yubo×yongom xiaoye, but by two duplicat dominant nuclear genes in paoye×yongan xiaoye and fufeng14×zhetong, respectively.更多还原