| 引用本文: | 赵 哲,谭钟扬,李世访,王红清.柑橘衰退病毒基因组的简单重复序列分布分析[J].生物信息学,2013,11(3):237-242. |
| ZHAO Zhe,TAN Zhong-yang,LI Shi-fang,WANG Hong-qing.Distributional analysis of SSRs in genomes of citrus tristeza virus[J].Chinese Journal of Bioinformatics,2013,11(3):237-242. |
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| 摘要: |
| 柑橘衰退病毒(Citrus tristeza virus,CTV)属于长线性病毒科(Closteroviridae),是目前已知植物病毒中基因组最大的病毒,其引起的柑橘衰退病对全世界的柑橘产业造成着严重影响。本文以在GenBank登录的32条全长CTV基因组序列为材料,分析简单重复序列(Simple Sequence Repeats,SSRs)在其基因组序列中的分布情况。研究结果显示,在所有的CTV基因组中均有SSRs的分布,SSRs重复次数较少,二型SSRs占主导地位,未在CTV基因组序列中发现五型和六型SSRs。在32条基因组全长序列中仅在5条序列中发现四型SSRs。这是首次以柑橘病毒为材料进行的SSRs分析研究。 |
| 关键词: 柑橘衰退病毒 简单重复序列 植物病毒 |
| DOI：10.3969/j.issn.1672-5565.2013-03.20130313 |
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| 基金项目: |
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| Distributional analysis of SSRs in genomes of citrus tristeza virus |
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ZHAO Zhe 1,3,TAN Zhong-yang 2,LI Shi-fang 3,WANG Hong-qing 1
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(1.Department of Fruit Science,College of Agronomy and Biotechnology,China Agricultural University,Beijing 100193,China; ;2.Hunan University,Changsha 410082,China;;3.State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100193,China)
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| Abstract: |
| Citrus tristeza virus (CTV) belongs to the family of Closteroviridae, which has the biggest genome compared with the other plant viruses, and impacts on the worldwide citrus industry negatively. 32complete genome sequences of CTV downloaded from GenBank were used to analyze the distribution of simple sequence repeats (SSRs) types. The results suggested that SSRs existed in all CTV genome sequences whereas the numbers were low. Dinucleotide repeats were the major type in CTV sequence while pentanucleotide repeats and hexanucleotide repeats were not found in CTV, and tetranucleotide repeats were rare, found in merely 5of 32CTV genome sequences. This is the first report about the SSRs analysis in citrus virus genome. |
| Key words: Citrus Tristeza Virus, Simple Sequence Repeats, Plant Viruses |
