畜牧兽医学报

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猪细小病毒和猪圆环病毒2型二重液相芯片检测方法的建立

王晶钰1,朱向博1,2,刘业兵2*,韩雪清3*,王慧煜3,张丽3,张磊2,张晓杰2,唐攀1   

  1. (1. 西北农林科技大学,杨凌 712100; 2. 中国兽医药品监察所,北京 100081; 3. 中国检验检疫科学研究院,北京 100029)
  • 收稿日期:2012-03-08 出版日期:2012-10-25 发布日期:2012-10-25
  • 通讯作者: 刘业兵(1973-),E-mail:liuyebing@ivdc.gov.cn;韩雪清(1962-),E-mail:hanxueq@yahoo.com.cn
  • 作者简介:王晶钰(1964-),男,陕西乾县人,副教授,博士,主要从事动物疫病防治和兽医公共卫生新技术的研究,E-mail:wjingyu2004@126.com;朱向博(1986-),男,陕西山阳人,硕士,主要从事动物疫病的分子诊断与防控技术研究,E-mail:xiangbo.zhu@yahoo.cn。二者并列为第一作者
  • 基金资助:

    国家自然科学基金项目(31172341;31172349);十一五国家科技支撑计划项目(2007BAD86B04)

Establishment of a Diplex xMAP Array for Detection of PPV and PCV2

WANG Jing-yu1, ZHU Xiang-bo1,2, LIU Ye-bing2*, HAN Xue-qing3*, WANG Hui-yu3
ZHANG Li3, ZHANG Lei2, ZHANG Xiao-jie2, TANG Pan1   

  1. 1. Northwest A & F University, Yangling 712100, China; 2. China Institute of Veterinary Drug
    Control, Beijing 100081, China; 3. Chinese Academy of Inspection and Quarantine,
    Beijing 100029, China
  • Received:2012-03-08 Online:2012-10-25 Published:2012-10-25

摘要: 作者拟建立检测猪细小病毒(PPV)和猪圆环病毒2型(PCV2)的二重液相芯片(xMAP)检测方法,以满足出入境检疫和临床高通量检测的要求。依据GenBank中PPV结构蛋白VP2基因及PCV2全基因序列,设计PPV和PCV2特异性探针、引物及探针互补序列,将探针与磁性微球偶联,对下游引物和探针互补序列标记生物素,采用不对称性二重PCR扩增靶序列,将PCR产物与偶联好的探针进行杂交,用液相芯片仪进行检测。通过对检测条件优化,建立检测PPV、PCV2两种病毒的二重液相芯片技术,并对临床样本进行检测。建立的PPV和PCV2二重液相芯片检测方法,特异性良好,该方法对PPV和PCV2基因拷贝数检测下限分别为1.53×104、2.58×102;对56份临床样品检测表明,该方法与单项PCR检测结果符合率为100%。成功建立了PPV、PCV2二重xMAP检测方法,该检测技术可用于出入境检疫和兽医临床检验。

Abstract: The aim of this study was to establish a diplex xMAP array, which can detect porcine parvovirus (PPV) and porcine circovius type 2 (PCV2) simultaneously, to meet the requirements of the immigration quarantine and clinical high-throughput detection. According to the structural protein VP2 gene of PPV and PCV2 genome sequences in GenBank, specific probe, primers and probe’s reverse complement sequence of PPV and PCV2 were designed after multiple sequence alignment analysis. The probe were coupled to microspheres, and the reverse primers, probe’s reverse complement sequence were labeled with biotin. The target sequences were amplified by diplex asymmetry PCR, then products of PCR were hybridized with the probes which coupled verify successful, hybridization results were detected by the xMAP instrument, then the diplex xMAP array, which was established through optimizing the reaction conditions, were used to detect clinical samples. The diplex xMAP array, for detecting PPV and PCV2, was established and had a good specificity and sensitivity, and limit of detection were 1.53×104 and 2.58×102 in gene copy respectively. The detection results of 56 clinical samples showed that this method was 100% consistent with PCR. This study established the diplex xMAP array for detecting PPV and PCV2 successfully; the methods could be used for the immigration quarantine and veterinary clinical detection.

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