摘要
根据三种不育胞质的６个不育系分别与６个保持系和９个恢复系杂交配制的Ｆ１表现出的恢保关系，结果表明：滇Ⅰ型和ＢＴ型胞质的不育基因和恢复基因是等位，其育性恢复受一对弱恢复基因（Ｒ１）和强恢复基因（Ｒ２）控制。试验还表明，这对弱恢ＢＴ（滇Ⅰ）型的Ｒ１基因对恢复野败型不育胞质也是必需的，该基因存在于野败型不育系珍汕９７Ａ、Ｂ和０２４２８Ａ、Ｂ中。本文还提出滇Ⅰ型、ＢＴ型和野败型三种不育胞质的恢复基因遗传模式。
From the results of maintainingand restoring expressions of F 1 hybrids from 6 cytoplasmic male-sterile lines crossed with their maintainers and 9 restoring lines, it is concluded that both sterility genes and restoring genes were allelism in Dian-Ⅰ and BT type cytoplasmic male-sterility, of which fertility was controlled by a weak restoring gene (R 1) and a strong restoring gene (R 2). The results showed that it is necessory for a weak restoring gene (R 1)to restore fertility of WA type cytoplasmic male-sterile lines and that a weak restoring gene (R 1) existed in WA type cytoplasmic male-sterile lines Zhenshan 97A, 02428A and their maintainers. Inheritance patterns of restoring genes in Dian-Ⅰ, BT and WA type cytoplasmic male-sterility were put forward in the paper.
出处
《浙江农业学报》
CSCD
1995年第2期81-84,共4页
Acta Agriculturae Zhejiangensis
关键词
水稻
恢复基因
遗传
三系配套
Rice (Oryza sativa)
Cytoplasmic sterility
Restoring gens
Inheritance
Pattern
