水稻突变体的创制

为功能基因组学研究提供较好的基础材料，利用0.75%甲基磺酸乙酯溶液和γ射线双重诱变处理‘晋恢21’M1、‘中花11’、LR001种子进行研究。结果表明，经过M2筛选，获得716份叶、茎、穗、粒等性状变异的突变体，突变频率较高，达1.79%，还获得一些如不分蘖、多分蘖、白化苗、mini-plant、稀粒、花器官等极具研究价值的突变类型。双重诱变可以获得各种类型的突变体，所有的突变类型在3种材料中均有出现，说明该技术可为功能基因组研究提供大量的实物材料。

Creation of Rice (Oryza sativa L.) Mutant

To provide materials for the research of rice functional genomics,dry seeds of ＇ Zhonghua11 ＇ and LR001 were induced with 60 Co γ-ray,then these seeds and ＇ Jinhui21 ＇ M 1 seed,induced by ethyl methane sulfonate（EMS） of 1%,were induced with 1% EMS.Through the screening to M 2,seven hundred and sixteen mutants,including the changed organ of leaf,stem,panicles and grain,etc,were identified.Among these ones,some were of great value in research,such as no-tillering,more-tillering,albino,mini-plant,thin grains,flower organs,etc.More types of mutants were obtained,with a frequencies of mutation mean of 1.79%,and all emerged in the three varieties in double induction.This indicated that the double mutation technology might provide a lot of mutants for functional genomics research.