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河南口岸截获鼠类DNA条形码鉴定

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  • 1 河南出入境检验检疫局技术中心医学媒介生物实验室, 郑州 450003;
    2 中山出入境检验检疫局, 广东 中山 528403
张勤,女,副主任技师,主要从事医学媒介生物条形码鉴定及其携带病原体检测,Email:qinzhang523@126.com

收稿日期: 2015-12-17

  网络出版日期: 2016-06-20

Identification of intercepted Rattus nitidus by DNA barcoding at Henan port

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  • 1 Henan Entry-Exit Inspection and Quarantine Bureau, Zhengzhou 450003, Henan Province, China;
    2 Zhongshan Entry-Exit Inspection and Quarantine Bureau

Received date: 2015-12-17

  Online published: 2016-06-20

摘要

目的 利用DNA条形码技术对河南机场口岸截获的鼠类样本进行鉴定。方法 提取该鼠类样本基因组DNA,以通用引物BatL5310和R6036R进行细胞色素C氧化酶亚基Ⅰ(COⅠ)基因片段的扩增并测序,将测序结果与GenBank及BOLD Systems v3中的序列进行比对,应用Mega 4.1软件构建系统发育树。结果 该鼠样本COⅠ基因扩增片段去除引物后为702 bp,序列比对结果及系统进化关系表明其与大足鼠的同源性为99.43%,该鼠样本为大足鼠。结论 DNA条形码技术在鼠类鉴定中可弥补形态学鉴定的缺陷,是一种简单有效的鼠类鉴定方法。

本文引用格式

张勤, 王晓梦, 岳巧云, 高洁, 邱德义 . 河南口岸截获鼠类DNA条形码鉴定[J]. 中国媒介生物学及控制杂志, 2016 , 27(3) : 280 -282 . DOI: 10.11853/j.issn.1003.8280.2016.03.016

Abstract

Objective DNA barcoding based on COⅠ gene was used to identify an unknown rat species captured at Henan port. Methods Genomic DNA of the unknown rat species was extracted, the international primer BatL5310 and R6036R were used to amplify COⅠ gene. Purified PCR product was sequenced and blasted in the GenBank and BOLD Systems v3. Phylogenetic trees were built with Mega 4.1. Results The amplified COⅠ fragment, without primer, of the unknown rat species was 750 bp in size and the sequence was 99.43% identical to the published sequence of Rattus nitidus. The unknown rat species was identified as R. nitidus. Conclusion DNA barcoding is a simple and effective method for the identification of rat species and can be the alternative method of morphological identification.

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