中国水稻科学

• 研究简报 • 上一篇    下一篇

粳型水稻显性半矮秆突变体的发现与初步研究

童继平1; 吴跃进1; 吴敬德1; 刘贵富1; 郑乐娅1; 余增亮2   

  1. 1农业部水稻遗传育种重点开放实验室, 安徽省农业科学院 水稻研究所, 安徽 合肥 230031;2中国科学院 等离子体物理研究所, 安徽 合肥 230031
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-10-10 发布日期:2001-10-10

Discovery of a Dominant Semi-Dwarf Japonica Rice Mutant and Its Preliminary Study

TONG Ji-ping; WU Yue-jin; WU Jing-de; LIU Gui-fu; ZHENG Le-ya; YU Zeng-liang   

  • Received:1900-01-01 Revised:1900-01-01 Online:2001-10-10 Published:2001-10-10

摘要: 在中粳杂交组合“M9056 × R8018选”的F6 选种圃中,发现半矮秆突变单株。以纯合半矮秆单株为父、母本, 与稳定野生型高秆单株进行正、反杂交。种植 P1 、P2 、F1、F2 世代群体。结果表明F1 植株与半矮秆亲本基本相同, 仍然表现半矮秆。 说明该半矮秆突变材料的矮生性表达为显性, 无细胞质效应。F2 群体植株株高性状发生分离,其分离比符合一对等位基因的遗传模式,说明该半矮秆材料的矮生性表达受一对核基因控制。

关键词: 水稻, 半矮秆基因, 遗传, 育种

Abstract:

In F6 generation selected nursery of medium japonica rice cross between M9056 and R8018 xuan, a semi dwarf mutant was found. Based on the analysis of the populations variation of plant height of F1 and F2 from reciprocal cross and its parents, it was found that the semi dwarfism of the mutant was controlled by a pair of dominant nuclear genes, its expression could not be affected by cytoplasm.

Key words: rice, semi dwarf gene, genetics, breeding