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烟草曲茎病毒卫星DNA在不同寄主中的分子变异比较 被引量：4

Comparison of Molecular Variation among the Satellite DNA Molecules Associated with Tobacco Curly Shoot Virus in Different Hosts
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摘要 The molecular variation of satellite DNA associated with Tobacco curly shoot virus (TbCSV) was compared by DNA sequencing of progenies of TbCSV DNA in Nicotiana benthamiana and N. glutinosa plants agroinoculated with infectious clones of TbCSV and its associated DNA. Comparisons indicated that TbCSV DNA populations had the higher levels of mutation frequency in N. glutinosa than that in N. benthamiana, and mutations generated in N. benthamiana were found upstream or downstream of C1 ORF whereas those in N. glutinosa were mostly located in A-rich region. No mutation was found in C1 ORF and satellite conserved region of DNA. The biological significance of the mutation accumulation and its role in disease epidemic were discussed. The molecular variation of satellite DNA associated with Tobacco curly shoot virus (TbCSV) was compared by DNA sequencing of progenies of TbCSV DNA in Nicotiana benthamiana and N. glutinosa plants agroinoculated with infectious clones of TbCSV and its associated DNA. Comparisons indicated that TbCSV DNA populations had the higher levels of mutation frequency in N. glutinosa than that in N. benthamiana, and mutations generated in N. benthamiana were found upstream or downstream of C1 ORF whereas those in N. glutinosa were mostly located in A-rich region. No mutation was found in C1 ORF and satellite conserved region of DNA. The biological significance of the mutation accumulation and its role in disease epidemic were discussed.
作者 青玲 周雪平
机构地区 浙江大学生物技术研究所
出处 《病毒学报》 CAS CSCD 北大核心 2005年第4期308-310,共3页 Chinese Journal of Virology
基金 国家杰出青年基金(No30125032) 国家自然科学基金(No30370927)资助项目
关键词 烟草曲茎病毒 卫星DNA 变异 本氏烟 心叶烟 <Keyword>Tobacco curly shoot virus satellite DNA variation Nicotiana benthamiana N. glutinosa
分类号 S435 [农业科学—农业昆虫与害虫防治]
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参考文献9

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二级参考文献13

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共引文献21

同被引文献66

引证文献4

二级引证文献6

病毒学报
2005年 第4期

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