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作 者 ：周天理;郑秀萍; 陈金泉;吴建镇;张功宙;黄琪玉

期 刊 ：作物学报 1992年 18卷 01期 页码：9-16

关键词：水稻；不育系；杂株；

Keywords:Rice, MS lines, Abnormal plants,

摘 要 ：本文通过对不育系中杂株来源的研究,发现产生杂株的直接原因是不育系自交结实的结果,不育系自交结实与黑染花粉有关,黑染花粉粒的出现又与环境和遗传互作有关。这一事实除揭露了不育系的育性表达受内外环境波动影响之外,不育基因还存在一定的遗传不稳定性。遗传分析的结果表明,A 型杂株的基因型是 S(r_1r_1r_2r_2);B 型杂株的

Abstract:The origin and genetics of abnormal plants appeared in MS lines of rice were studied.The results showed that the appearance of abnormal plants in MS lines was due to partialrestoration of self-fertility few florets caused by the interaction between environment andgenotypes.In other words,some MS lin

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