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| 二化螟对转CpTI基因水稻的抗性演变与风险评估 | |
| 引用本文： | 郑宇,胡奇勇,李本金,张小俊,李玥仁.二化螟对转CpTI基因水稻的抗性演变与风险评估[J].福建农林大学学报(自然科学版),2007,36(2):113-116. |
| 作者姓名： | 郑宇 胡奇勇 李本金 张小俊 李玥仁 |
| 作者单位： | 1. 福建省农业科学院植物保护研究所,福建,福州,350013;广东海洋大学,广东,湛江,524088 2. 福建省农业科学院植物保护研究所,福建,福州,350013 3. 福建省农业科学院中心试验室,福建,福州,350013 |
| 基金项目： | 国家自然科学基金 , 福建省自然科学基金 |
| 摘 要： | 本文以转CpTI基因(单基因)的水稻明恢86(MH86CpTI)为对象,以明恢86(MH86)为对照,通过室内汰选等一系列试验,研究二化螟对MH86CpTI的抗性演变规律.结果表明,经过17代汰选的二化螟对MH86CpTI表现出一定的抗性特征,表现在喂食MH86CpTI稻秆的二化螟2龄幼虫校正死亡率由F0的(89.27±5.63)%到F16只有(58.34±9.0)%;对二化螟生长发育如幼虫体重、体长、蛹期、孵化率等指标的影响也逐代减小.表明经汰选后的二化螟对MH86CpTI的适合性逐代增强,进入早期抗性阶段.可预测出二化螟对转基因水稻存在一定的抗性风险. |
| 关 键 词： | 转基因水稻 二化螟 抗性演变 风险评估 |
| 文章编号： | 1671-5470(2007)02-0113-04 |
| 修稿时间： | 2006-11-20 |
Development and risk assessment of CpTI transgenic rice resistance in Chilo suppressalis |
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| ZHENG Yu,HU Qi-yong,LI Ben-jin,ZHANG Xiao-jun,LI Yue-ren.Development and risk assessment of CpTI transgenic rice resistance in Chilo suppressalis[J].Journal of Fujian Agricultural and Forestry University,2007,36(2):113-116. | |
| Authors: | ZHENG Yu HU Qi-yong LI Ben-jin ZHANG Xiao-jun LI Yue-ren |
| Institution: | 1. Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, Clfina; 2. Central Laboratory, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350003, China; 3. Guangdong Ocean University, Zhanjiang, Guangdong 524088, China |
| Abstract: | Taking Minghui86(MH86CpTI),a CpTI transgenic rice variety,as meterial,the original Minghui86(MH86) as the control,through a series of tests including screening in laboratory,the development of MH86CpTI resistance in Chilo suppressalis was detected.After 17 generations of screening,C.suppressalis performed MH86CpTI resistance characteristics.The mortality of two-instar larvae of C.suppressalis fed with the rice stem of MH86CpTI decreased from(89.27±5.63)% in F0 to only(58.34±9.0)% in F16.The effect on the indices of growth of C.suppressalis including body weight and length of larvae,pupae stage,egg incubation declined from generation to generation.It was indicated that the MH86CpTI adaptability of the screened C.suppressalis was raised from generation to generation,and had entered the early stage of resistance,which predicted that C.suppressalis had a certain risk of resistance to transgenic rice. |
| Keywords: | transgenie rice Chilo suppressalis development of resistance risk assessment |
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