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杆状病毒p35基因序列与分子进化 被引量:1

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摘要 本文对家蚕核多角体病毒(BomoNPV)、苜蓿银纹夜蛾核多角病毒(AucaNPV)、斜纹夜蛾核型多角体病毒(SpliNPV)、粘虫核型多角体病毒(LeseNPV)、美国白蛾核型多角体病毒(HycuNPV)和薄荷灰夜蛾核型多角体病毒(RaouNPV)6类杆状病毒的p35基因进行序列比对和进化分析。结果显示,LeseNPV、AucaNPV、SpliNPV、RaouNPV、BomoNPVp35基因核苷酸序列之间同源性在78% ̄100%之间,氨基酸间的同源性在58% ̄100%之间,总体上p35基因在进化上具有保守性;Chou-Fasman法对蛋白2级结构的预测结果显示,不同杆状病毒P35蛋白的2级结构在总体上具相似性,但在某些区域显示明显的差异,这种差异也许是导致P35抗凋亡活性不同的原因。Neighbor-Joining算法建立了基于p35基因的分子进化系统树,结果显示:LeseNPV处于无根树的最根部,与其它NPV相距较远,AucaNPV、SpliNPV、RaoumuNPV各自形成独立的分枝,BomoNPV与HycuNPV形成独立的1组;12种不同来源的BomoNPVp35基因的系统进化分析显示,BomoNPV基本上按采集地聚类。
出处 《中国蚕业》 2006年第3期13-22,共10页 China Sericulture
基金 国家重点基础研究发展计划(973计划)资助项目(编号2005CB121000) 国家自然科学基金资助项目(编号30571404)
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共引文献35

同被引文献16

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