| 棉铃虫对Bt毒素抗性遗传方式的研究 |
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| 引用本文： | 李国平,吴孔明,封洪强,邱峰,郭予元.棉铃虫对Bt毒素抗性遗传方式的研究[J].河南农业科学,2008(10). |
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| 作者姓名： | 李国平 吴孔明 封洪强 邱峰 郭予元 |
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| 作者单位： | 1. 河南省农业科学院植物保护研究所,河南,郑州450002
2. 中国农业科学院,植物保护研究所,北京,100094 |
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| 基金项目： | 河南省科技攻关项目，国家重点实验室基金，河南农科院博士启动基金 |
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| 摘 要： | 在室内条件下,采用对Bt毒素产生253倍的抗性棉铃虫种群,研究其对Cry1Ac的抗性遗传方式。结果表明,互交后代(抗性雄蛾×敏感雌蛾和抗性雌蛾×敏感雄蛾)的效应显性值DML分别为0.14和0.11,二者差异不显著,表明抗性为常染色体,不完全隐性遗传;对正反交F1代的回交后代、正反交F1代的自交后代生长发育期望值与实际值进行χ2分析,表明抗性由单基因控制。
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| 关 键 词： | Bt毒素 转基因棉花 棉铃虫 抗性遗传 |
Inheritance of Resistance to Bt Toxin in Helicoverpa armigera(Lepidoptera: Noctuidae) |
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| LI Guo-ping,WU Kong-ming,FENG Hong-qiang,QIU Feng,GUO Yu-yuan.Inheritance of Resistance to Bt Toxin in Helicoverpa armigera(Lepidoptera: Noctuidae)[J].Journal of Henan Agricultural Sciences,2008(10). |
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| Authors: | LI Guo-ping WU Kong-ming FENG Hong-qiang QIU Feng GUO Yu-yuan |
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| Abstract: | Inheritance of resistance to the Bacillus thuringiensis(Bt) crystal protein was studied in Cotton bollworm(CBW) Helicoverpa armigera(Hubner),a population with 253-fold resis-tance to Cry1Ac than a control susceptible strain.The progeny of reciprocal F1 crosses(resistant male×susceptible female and resistant female×susceptible male) responded alike in bioassays,with values of 0.14 and 0.11 for DML,respectively,which indicated autosomal inheritance and incomplete recessive.Chi-square analysis of growth and development of progeny from backcross(F1×Resistant strain) and self-cross of backcross suggested that resistance was controlled primarily by one major loci. |
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| Keywords: | Bt toxin Transgenic cotton Cotton bollworm Resistance genetics |
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