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通过杂交、花药培养和籼粳属性分子标记检测 ,育成广亲和保持系国广 B。以生产上广为应用的 6种不育质源野败型、矮败型、冈型、D型、印水型和 K型为不育细胞质供亲 ,以广亲和保持系国广 B为细胞核供体 ,进行同核异质广亲和不育系的转育 ,经过连续 7代回交作核置换育成一套同核异质广亲和不育系 ,并对该套不育系的主要性状进行分析比较。结果表明 ,在相同的细胞核背景下 ,不同细胞质源不育系的主要性状除分蘖盛期的分蘖数和剑叶叶角表现有显著差异外 ,其它性状表现的差异均未达显著水准 ,说明该套不育系的考察性状主要由核基因控制 ,细胞质效应较小。
Through hybridization, anther culture and indications of indica and japonica molecular marker detection, bred into a wide range of affinity maintained Guoguang. To produce widely used six kinds of infertility sources Wild defeat type, dwarf defeat type, Gang type, D type, water type and K type for the infertile cytoplasm for the pro-to maintain the Department of Guangguo B is Nuclear donor, the same nuclear heterologous sterile lines of wide-sterile, after 7 generations of backcross for nuclear disposition into a set of nuclear heterozygous male sterile lines, and the sterile line The main traits were analyzed and compared. The results showed that in the same nucleus background, the main traits of different cytoplasmic male sterile lines except the tillering tillering stage and the flag leaf angle were significantly different, the other traits showed no significant difference in performance, indicating that the The traits of sterile CMS lines were mainly controlled by nuclear genes with less cytoplasmic effect.