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氮离子注入对同源四倍体水稻的诱变效应
引用本文:黄群策,彭建军,李玉峰.氮离子注入对同源四倍体水稻的诱变效应[J].河南农业科学,2006(4):24-27.
作者姓名:黄群策  彭建军  李玉峰
作者单位:1. 郑州大学物理工程学院离子束生物工程省重点实验室,河南,郑州,450052;湖南科技大学生命科学学院,湖南,湘潭,411201
2. 郑州大学物理工程学院离子束生物工程省重点实验室,河南,郑州,450052
3. 湖南科技大学生命科学学院,湖南,湘潭,411201
基金项目:国家科技攻关项目;科技部专项基金
摘    要:选用不同倍性的水稻进行低能氮离子束注入试验,研究离子注入后的效果与染色体组倍性之间的关系,结果表明,同源四倍体水稻比二倍体水稻对低能氮离子束注入处理更敏感;在同源四倍体水稻群体中所出现的变异频率比在二倍体水稻群体中出现的变异频率高;在经过低能氮离子束注入处理的同源四倍体后代群体中,分别筛选到结实率高达90.16%的单株和具有双胚苗性状的单株,同源四倍体水稻的高结实率特性和双胚苗特性表现出一定的可遗传性。

关 键 词:同源四倍体水稻  低能氮离子束  诱变效应
文章编号:1004-3268(2006)04-0024-04
收稿时间:2005-12-12
修稿时间:2005年12月12

Biological Effects of Autotetraploid Rice after Ion Beam Implantation
HUANG Qun-ce,PENG Jian-jun,LI Yu-feng.Biological Effects of Autotetraploid Rice after Ion Beam Implantation[J].Journal of Henan Agricultural Sciences,2006(4):24-27.
Authors:HUANG Qun-ce  PENG Jian-jun  LI Yu-feng
Institution:1. Provincial Key Laboratory of Iom Beam Bio-engineering Physical College, Zhengzhou University, Zhengzhou 450052, China; 2. Department of Life Sciences, Hunan Science and Technology University, Xiangtan 411201, China
Abstract:Biological effects of autotetraploid(2n=4x=48) and diploid rice(2n=2x=24) after ion beam implantation of low energy N~ were studied,comparing the effects of the different materials with the dissimilar chromosome sets. The results showed that autotetraploid rice were more sensitive to the N~ ion beam implantation than diploid rice.The autotetraploid rice represented higher mutagenic frequency than diploid rice,more mutagenic plants in the former.The special plants with the higher seed sets(90.16%) or the double-embryo seedling,showing hereditary character,were selected in the subsequent generations.It is thought that the effects of genetic improvement on autotetraploid rice by the ion beam implantation of low energy have been ascertained.The new research way,solving the problem of lower seed set in autotetraploid rice and excavating its intrinsic value,may be found in the experiment.
Keywords:Autotetraploid rice  Ion beam of low energy N~  Mutagenic effects
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