›› 2013, Vol. 40 ›› Issue (11): 157-160.

• 遗传繁育 • 上一篇    下一篇

地方土猪源副猪嗜血杆菌16S rRNA基因的分子鉴定及遗传进化分析

常洪涛1, 刘慧敏1,2, 杜季梅1, 陈陆1, 赵军1, 王新卫1, 姚惠霞1, 杨霞1, 李鸿雁1, 王川庆1   

  1. 1. 河南农业大学牧医工程学院, 河南郑州 450002;
    2. 中国科学院动物研究所, 北京 100101
  • 收稿日期:2013-04-07 出版日期:2013-11-20 发布日期:2013-12-19
  • 通讯作者: 王川庆 E-mail:wchuanq@163.com
  • 作者简介:常洪涛(1978-),男,河南人,讲师,博士生,研究方向:动物传染病免疫防治。
  • 基金资助:
    河南省高校科技创新人才支持计划(2011HASTIT009)。

Molecular Identification and Genetic Evolution Analysis of Haemophilus parasuis 16S rRNA Gene in Local Pig Origin

CHANG Hong-tao1, LIU Hui-min1,2, DU Ji-mei1, CHEN Lu1, ZHAO Jun1, WANG Xin-wei1, YAO Hui-xia1, YANG Xia1, LI Hong-yan1, WANG Chuan-qing1   

  1. 1. College of Animal Husbandry and Veterinary, Henan Agricultural University, Zhengzhou 450002, China;
    2. Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2013-04-07 Online:2013-11-20 Published:2013-12-19

摘要: 为研究地方土猪源副猪嗜血杆菌(Haemophilus parasuis,Hps)的分子遗传进化特性,应用PCR方法扩增河南地方分离株XY0501的16S rRNA基因,并进行遗传进化分析。结果显示,地方土猪源Hps的16S rRNA基因全长为822 bp,与国内外参考菌株的核苷酸序列同源性为97.1%~99.3%;与血清5型参考菌株的核苷酸序列同源性高达99.3%;基于16S rRNA基因序列绘制的系统进化树显示,地方土猪源Hps与血清5型Hps参考株属于同一分支。研究结果证明,Hps可感染地方土猪并导致发病,感染来源有待进一步查明;16S rRNA基因在Hps的不同血清型中高度保守,且无品种差异。

关键词: 副猪嗜血杆菌; 地方土猪源菌株; PCR; 16S rRNA; 分子进化

Abstract: To study the molecular genetic evolution characteristics of Haemophilus parasuis(Hps), PCR was used to determine the 16S rRNA gene of the strain XY0501 isolated from local pigs in Henan province, and genetic evolution analysis was conducted. The results showed that the amplication of 16S rRNA of the isolate XY0501 was 822 bp, the nucleotide sequence similarity among the reference strains was 97.1% to 99.3%, and 99.3% with the strain serotype 5. The phylogenetic tree based on 16S rRNA revealed that the Hps isolate XY0501 from local pigs belonged to the same branch with reference strain serotype 5. The results identified that the Hps infection could cause severe clinical symptoms in pigs, but infection source need to be further investigation,in addition, 16S rRNA of Hps of different serotypes was conserved and no species difference.

Key words: Haemophilus parasuis; strain from local pig; PCR; 16S rRNA; molecular genetic evolution

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