四川杂交水稻系谱分析

ANALYSIS ON THE GENEALOGY OF HYBRID RICE IN SICHUAN

四川杂交水稻具有多种胞质不育系和杂交稻,但各胞质不育系的保持系,大多数具有矮仔占或矮南特或两者的血缘,恢复系则主要以泰引1号和IR系统的早期材料为恢复基因供体。文中提出了在杂交水稻育种中丰富其遗传背景的设想。

Combinations of hybrid rice in Sichuan Province derive from various cytoplasmic male sterile (CMS) lines. And the majority of the maintainers of these CMS lines possess the descent of Aizhizhan or Ainante, or the both. Most of the restorer lines are the derivation of Tai-Yin No. 1 or IK varieties. The ideas for richening the genetic base of hybrid rice are suggested.