番茄斑萎病毒属病毒S RNA序列比对
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国家“973”计划项目(2006CB100204);云南省自然科学基金项目(2005C0036M,2007C0036M);云南省教育厅项目(5Y0171B)


The alignment of S RNA sequences in Tospovirus
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    摘要:

    从生物信息数据库NCBI中搜索并下载最新有关番茄萎斑病毒属Tospovirus各种间S RNA片段全长序列以及该片段上NSs、N的核酸和蛋白质序列着手,运用DNAstar和DNAMAN以及NPSA等生物信息软件对其进行比对分析,结果发现,以NSs蛋白序列建立的系统进化树显示CCSV和TZSV之间的同源性为85.8%,IYSV和TYRV之间的同源性达90%,MYSV和PSMV间的同源性为97.5%;通过N蛋白序列分析显示,Tospovirus属中有7组同源性较高的种;在Tospovirus属病毒中非极性氨基酸含量最高,极性酸性氨基酸最少,比较TSWV中抗性破坏RB株系与普通株系在NSs、N核酸、蛋白质序列、氨基酸含量和蛋白质二级结构之间的差异,发现差异不显著.

    Abstract:

    The nucleic acid and protein sequences on NSs, N and S RNA full-length sequences of Tospovirus genus were downloaded from NCBI database, and they were aligned by bio-informatics software DNAstar, DNAMAN and NPSA. It was demonstrated that homology between CCSV and TZSV was 85.8% on homologous phylogenetic tree on NSs protein sequences, homology between IYSV and TYRV reached 90%, homology between MYSV and PSMV was up to 97.5%. There are 7 groups of high homology with analysing the N protein sequences. Tospovirus is rich in non-polar amino acids but polar-acid amino acid is the lowest. At the same time, by alignment TSWV strains between resistance-breaking strain and wild strains on NSs, N nucleic acid and protein sequences, amino acids and the protein secondary structure with no significant differences found.

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徐小刚,刘雅婷.番茄斑萎病毒属病毒S RNA序列比对[J].湖南农业大学学报:自然科学版,2010,36(2):142-146.

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  • 收稿日期:2009-09-02
  • 最后修改日期:2010-01-06
  • 录用日期:2010-03-15
  • 在线发布日期: 2010-04-04
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