Chines Journal of Vector Biology and Control ›› 2015, Vol. 26 ›› Issue (1): 55-57.DOI: 10.11853/j.issn.1003.4692.2015.01.014

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Application of DNA barcoding technique in identification of nocturnal rodent species in Bashang area of Hebei province, China

JIN Sheng-hao1, LU Liang2, YAN Dong1, SHI Xian-ming1, CUI Yao-ren1, LI Yu-wei2, LIU Qi-yong2, KONG Ling-yan1   

  1. 1. Institute of Plague Prevention and Control of Hebei Province, Zhangjiakou 075000, Hebei Province, China;
    2. State Key Laboratory for Infectious Diseases Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention
  • Received:2014-08-25 Online:2015-02-20 Published:2015-02-20
  • Supported by:

    Support by the Special Research Program for Health(No. 201202021)and Hebei Provincial Medical Science Research Foundation(No. 20110267)

DNA条形码技术在河北省坝上地区夜行鼠鉴定中的应用

金圣浩1, 鲁亮2, 闫东1, 史献明1, 崔耀仁1, 李玉伟2, 刘起勇2, 孔令艳1   

  1. 1. 河北省鼠疫防治所流行病科, 河北张家口075000;
    2. 中国疾病预防控制中心传染病预防控制所, 传染病预防控制国家重点实验室
  • 作者简介:金圣浩,男,医师,从事鼠疫流行病研究工作,Email: jin1911_jin@163.com
  • 基金资助:

    卫生行业科研专项(201202021);河北省医学科学研究重点课题(20110267)

Abstract:

Objective To identify nocturnal rodent species in the Bashang area of Hebei province, China, using DNA barcoding. Methods Liver tissue samples of nocturnal rodents were collected from the study area. The whole mice were also preserved and dissected. Genomic DNA was extracted for PCR amplification of the mitochondrial cytochrome c oxidase subunitⅠ (COⅠ) gene with consensus primers, followed by sequencing. Blast comparisons were performed between the obtained sequencing data and the DNA bar codes of other rodent species in the GenBank. A molecular evolutionary tree was built. Results All the 36 samples produced specific COⅠ gene bands by PCR amplification. The result of molecular evolutionary tree was slightly different from that of morphological identification. Skull identification revealed that the molecular evolutionary tree was correct, and the result of morphological identification was corrected. High-homology genes were not found in the GenBank for two nocturnal rodents. Since their skulls were seriously damaged, we temporally could not determine the species of these two individuals. Conclusion DNA barcoding can be used to effectively identify rodent species.

Key words: Hebeiprovince,Bashangarea, Nocturnalrodent, DNAbarcoding, Mitochondrialgene, CytochromecoxidasesubunitⅠ

摘要:

目的 以河北省坝上地区捕获的夜行鼠为对象,应用DNA条形码技术进行鼠类鉴定。方法 在河北省坝上地区采集鼠肝脏标本,并保存整只鼠,制作标本,提取DNA,采用通用引物PCR法扩增细胞色素C氧化酶亚基Ⅰ(COⅠ)基因,并测序。将测序结果与GenBank中其他鼠类的DNA条码进行Blast比对,并构建分子进化树。结果 36份样本均能通过PCR扩增出特异性COⅠ基因条带,所构建的分子进化树结果与形态学鉴定结果有所不同,经头骨鉴定,进化树结果正确无误,更正形态学鉴定结果。其中2只夜行鼠未能在GenBank中找到同源性较高的鼠类基因,且头骨受到严重损坏,暂无法确定鼠种。结论 DNA条形码技术能够对鼠类进行有效的物种鉴定。

关键词: 河北省坝上地区, 夜行鼠, DNA条形码, 细胞色素C氧化酶亚基Ⅰ基因

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