| 玉米螟赤眼蜂不同地理种群mtDNA基因序列分析及遗传分化研究 |
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| 引用本文： | 袁佳,王振营,何康来,白树雄,李菁.玉米螟赤眼蜂不同地理种群mtDNA基因序列分析及遗传分化研究[J].中国生物防治,2011,27(1):16-21. |
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| 作者姓名： | 袁佳 王振营 何康来 白树雄 李菁 |
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| 作者单位： | 中国农业科学院植物保护研究所,北京,100193 |
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| 基金项目： | “十一五”国家科技支撑计划课题(2008BADA5B05); 现代农业产业技术体系建设专项资金(nycyti-02) |
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| 摘 要： | 本研究通过对玉米螟赤眼蜂Trichogramma ostriniae不同地理种群的线粒体DNA COⅠ、COⅡ和Cytb基因进行序列分析,研究了我国玉米螟赤眼蜂不同地理种群的遗传分化程度.结果发现,玉米螟赤眼蜂群体内线粒体基因具有丰富的遗传多态性,且各地理种群之间已产生不同程度的遗传分化.中性检测结果表明,玉米螟赤眼蜂进化遵循中性模型,且在过去呈现种群扩张趋势.玉米螟赤眼蜂不同地理种群之间的遗传距离在0.002～0.020之间.种群系统聚类树分支结构和Mantel相关性分析结果表明,玉米螟赤眼蜂各地理种群的遗传距离与地理距离间不具有显著的相关性.
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| 关 键 词： | 玉米螟赤眼蜂 地理种群 线粒体DNA 基因序列 遗传分化 |
Sequence Analysis of mtDNA Gene and Genetic Differentiation in Geographic Populations of Trichogramma ostriniae |
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| YUAN Jia
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WANG Zhen-ying
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HE Kang-lai
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BAI Shu-xiong
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LI Jing.Sequence Analysis of mtDNA Gene and Genetic Differentiation in Geographic Populations of Trichogramma ostriniae[J].Chinese Journal of Biological Control,2011,27(1):16-21. |
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| Authors: | YUAN Jia WANG Zhen-ying HE Kang-lai BAI Shu-xiong LI Jing |
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| Institution: | YUAN Jia,WANG Zhen-ying,HE Kang-lai,BAI Shu-xiong,LI Jing(Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100193,China) |
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| Abstract: | Genetic differentiation among geographic populations of Trichogramma ostriniae was estimated by analyzing sequences of mitochondrial COI,COII and Cytb gene fragments.High nucleotide diversity was observed and genetic differentiation occurred among T.ostriniae populations to different extent.Tajima's D and Fu's Fs neutrality test indicated that molecular evolution of T.ostriniae species was in conformity with the principle of neutral theory,and the populations probably have experienced an expansion.Pairwise ... |
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| Keywords: | Trichogramma ostriniae geographic population mtDNA gene sequences genetic differentiation |
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