水稻红米性状的遗传及利用研究

Inheritance of Red Rice and its Utilization

利用红米水稻材料 (天红 )与白米水稻 (特青、明恢 63等 )杂交 ,其后代 F1均表现为红米 ,F2 则分离成 3(红 )∶ 1(白 )。经遗传分析 ,该材料的红米性状是受一对主基因控制的显性遗传。而以此材料转育的红米恢复系 (红零 )与不同胞质类型的三系不育系杂交 ,F1皆显出较强的穗粒优势。

With the material of red rice(Tianhong)and white rice(Teqing,Minghui 63) through cross,all their F 1 are red rice,F 2 display 3(red rice)∶1(white rice).According to the law of segregation, the character of red rice is dominant inheritance under the control of a pair of main genes. The restorer of red rice(Hongling) was selected from the offspring of the crossbred between Tianhong and common restorers, it showed stronger heterosis than CK in grain number per spike while it was crossed with a few useful male sterile lines.