一种具有遗传特异性的紫叶稻及其在两系法杂交稻中的应用
文献类型: 中文期刊
作者: 钱前;唐绍清;林建荣;吕子同
作者机构:
关键词: 紫叶稻CN-pl;紫叶抑制基因;两系法杂交稻;真假杂种识别
期刊名称:浙江农业学报
ISSN: 10041524
年卷期: 1995 年 04 期
页码:
摘要: 利用中国水稻研究所保存的一份籼型紫叶稻(CN-pl)分别与正常绿叶籼、粳稻杂交,发现该紫叶稻的叶色遗传具有特异性:即杂种F1不表现紫色而呈绿色。F2群体中绿叶与紫叶之比为13∶3、55∶9,符合二至三对基因的分离模式。结果表明:一般正常绿叶稻品种均带有该紫叶抑制基因〔I-pl(t)〕,用CN-pl作母本与几个广亲和品种杂交,F1表现出明显的杂种优势。CN-pl这种遗传特异性用于两系杂交稻制种,在苗期即可根据叶色,有效的鉴别因化学杀雄不彻底或光敏不育系育性不稳产生的假杂种,以保证杂交F1纯度。
分类号: S511.103.5
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