华北农学报 ›› 2008, Vol. 23 ›› Issue (6): 87-92. doi: 10.7668/hbnxb.2008.06.020

所属专题: 水稻 植物保护

• 论文 • 上一篇    下一篇

江苏水稻黑条矮缩病病毒的RT-PCR分析和快速检测

杨杰1, 王军1, 周彤2, 陈志德1, 仲维功1   

  1. 1. 江苏省农业科学院, 粮食作物研究所, 江苏, 南京, 210014;
    2. 江苏省农业科学院, 植物保护研究所, 江苏, 南京, 210014
  • 收稿日期:2008-07-21 出版日期:2008-12-28
  • 通讯作者: 仲维功(1954-),男,江苏兴化人,研究员,主要从事水稻遗传育种研究。
  • 作者简介:杨杰(1969-),男,四川南部人,博士,副研究员,主要从事水稻遗传育种研究。
  • 基金资助:
    国家科技支撑计划重大项目(2006BADO2A03);江苏省自然科学基金项目(BK2006159);江苏省农业科技自主创新基金项目(CX[07]603);江苏省农业科学院基金项目(6110703;6510806)

Detecting and Analysis of Rice Black Stripe Dwarf Virus(RBSDV)on Rice in Jiangsu Province with RT-PCR

YANG Jie1, WANG Jun1, ZHOU Tong2, CHEN Zhi-de1, ZHONG Wei-gong1   

  1. 1. Institute of Food Crops, Jiangsu Academy of Agriculture Sciences, Nanjing 210014, China;
    2. Institute of Plant Protection, Jiangsu Academy of Agriculture Sciences, Nanjing 210014, China
  • Received:2008-07-21 Published:2008-12-28

摘要: 为了明确江苏新发生的矮缩病害为水稻黑条矮缩病,采用RT-PCR和序列测定方法对其病原进行了精确鉴定。根据水稻黑条矮缩病病毒基因组序列的信息,设计扩增RNA聚合酶基因、外壳蛋白基因和RNA沉默抑制子基因以及核心蛋白基因部分编码区的4对引物,提取感染水稻黑条矮缩病病毒的水稻植株总RNA并进行RT-PCR扩增,可以在感病植株中分别扩增出水稻黑条矮缩病病毒基因组特有的4个条带,测序结果表明,来源于江苏南京的分离物的4个基因部分编码片段与已登录的对应基因片段核苷酸序列同源性达99% 以上,共发现7个碱基的突变。经生物信息学分析发现7个单碱基突变都是同义突变,氨基酸序列没有改变。根据以上结果确认该病病原为水稻黑条矮缩病病毒。利用该方法可以对水稻和其他寄主进行早期病毒检测。

关键词: 水稻黑条矮缩病, RT-PCR, 病毒检测

Abstract: To determine the pathogen of rice dwarf disease which has caused yield loss in Jiangsu Province in recent years was caused by rice black stripe dwarf virus(RBSDV).Four pairs of primers to amplify RNA dependent RNA polymerase and the coat protein and core protein and silencing suppressor of RBSDV were designed.Four bands with about 200 bp to 300 bp were obtained in infected rice plants by RTM-PCR,respectively.The separate segment was ligated top GEM-T-easy vector,then sequenced with M13 primers.Their identities to rice black-streaked dwarf virus were higher than 99 % and seven synonymous substitution were found.The results showed that the virus which causes rice dwarf disease in Jiangsu is RBSDV.The identification of RBSDV in the small brown planthopper(Laodelphax striatellus),rice and other host plants is of great importance for the disease forecasting.This approach can be used for early detection of RBS-DV in infected rice and other host plants.

Key words: Rice black stripe dwarf virus disease, RT-PCR, Virus detection

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引用本文

杨杰, 王军, 周彤, 陈志德, 仲维功. 江苏水稻黑条矮缩病病毒的RT-PCR分析和快速检测[J]. 华北农学报, 2008, 23(6): 87-92. doi: 10.7668/hbnxb.2008.06.020.

YANG Jie, WANG Jun, ZHOU Tong, CHEN Zhi-de, ZHONG Wei-gong. Detecting and Analysis of Rice Black Stripe Dwarf Virus(RBSDV)on Rice in Jiangsu Province with RT-PCR[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(6): 87-92. doi: 10.7668/hbnxb.2008.06.020.

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