华北农学报 ›› 2011, Vol. 26 ›› Issue (3): 37-41. doi: 10.7668/hbnxb.2011.03.008

所属专题: 畜牧 生物技术

• 论文 • 上一篇    下一篇

一株商品肉鸡腺胃H9N2的分离鉴定及HA基因序列分析

王友令1, 袁小远2, 徐怀2, 杨金兴2, 秦卓明2, 廖明3   

  1. 1. 山东农业科学院家禽研究所, 山东济南 250100;
    2. 华南农业大学兽医学院, 广东广州 510642
  • 收稿日期:2011-02-08 出版日期:2011-06-28
  • 通讯作者: 廖明(1968- ),男,北京人,教授,博士,主要从事动物病毒和分子生物学研究。
  • 作者简介:王友令(1974- ),男,山东招远人,助理研究员,在读博士,主要从事禽病和分子病毒学研究.
  • 基金资助:
    教育部新世纪优秀人才支持计划项目(NCET-06-0752);广东省自然科学基金项目(8451064201001132);教育部创新团队项目(IRT0723);国家肉鸡产业技术体系项目(nycytx-42-G3-03);广东省科技计划项目(2007A020300011)

Isolation, Identincation and Molecular Characterization of a H9N2 Isolate from a Broiler Flock Glandular Stomach

WANG You-ling1, YUAN Xiao-yuan2, XU Huai-ying2, YANG Jin-xing2, QIN Zhuo-ming2, LIAO Ming3   

  1. 1. The South China Agricultural University,Guangzhou 510642,China;
    2. Institute of Poultry Science,Shandong Academy of Agricultural Sciences,Jinan 250100,China
  • Received:2011-02-08 Published:2011-06-28

摘要: 从30日龄商品肉鸡腺胃分离到一株具有血凝特点的病毒,经HI交叉抑制试验证实为H9N2病毒,命名A/Chicken/Shandong/KD/09,病毒对SPF鸡无致病性,IVPI为0.对其HA基因进行克隆测序,HA基因氨基酸裂解位点的基序为RSSR↓ GL,与弱毒基序一致.A/chicke/Shandon/KD/09分离毒株与参考株HA基因的核苷酸之间的同源性为94.%~100%,氨基酸序列之间的同源性为9.%~99.8%.与国外A/ck/Korea/ms96/96、A/Parakeet/chiba/1/97和A/turkey/Wisconsin/1/1966 HA基因核苷酸序列同源性为80.9%~91.%,氨基酸序列同源性为88.1%~91.%.系统进化树分析表明,该毒株与近年来国内流行的A/chicken/Shandong/2/02禽流感毒株类似.

关键词: H9N2病毒, 腺胃, HA基因

Abstract: A newly H9N2 isolate named A/Chicken/Shandong/KD/09 was collected from a broiler flock glanduar stomach,The biological test showed that the isolate A/Chicken/Shandong/KD/09 exhibited the IVPI value with 0,and the isolate shared a lentogenic motif 335RSSR↓GL340 at the HA protein cleavage site,which indicated that A/Chicken/Shandong/KD/09 was lentogenic.The HA gene nucleotides(amino acids) homologies is 94.5%-100%(95.5%-99.8%) between the isolate A/Chicken/Shandong/KD/09 and the China H9N2 isolates.The HA gene nucleotides(amino acids) homologies is 80.9%-91.5%(88.1%-91.5%) between the isolate A/Chicken/Shandong/KD/09 and A/ck/Korea/ms96/96,A/Parakeet/chiba/1/97,A/turkey/Wisconsin/1/1966 H9N2 isolates.Phylogenetic analysis of HA gene showed that the A/Chicken/Shandong/KD/09 was similar to that of the A/chicken/Shandong/2/02.

Key words: H9N2 subtype avian influenza virus, Glandular stomach, Haemagglutinin gene

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引用本文

王友令, 袁小远, 徐怀, 杨金兴, 秦卓明, 廖明. 一株商品肉鸡腺胃H9N2的分离鉴定及HA基因序列分析[J]. 华北农学报, 2011, 26(3): 37-41. doi: 10.7668/hbnxb.2011.03.008.

WANG You-ling, YUAN Xiao-yuan, XU Huai-ying, YANG Jin-xing, QIN Zhuo-ming, LIAO Ming. Isolation, Identincation and Molecular Characterization of a H9N2 Isolate from a Broiler Flock Glandular Stomach[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(3): 37-41. doi: 10.7668/hbnxb.2011.03.008.

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