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首页> 外文期刊>Poultry Science >Genetic analyses of avian influenza viruses in Mongolia, 2007 to 2009, and their relationships with Korean isolates from domestic poultry and wild birds
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Genetic analyses of avian influenza viruses in Mongolia, 2007 to 2009, and their relationships with Korean isolates from domestic poultry and wild birds

机译：2007年至2009年蒙古的禽流感病毒的遗传分析及其与韩国家禽和野禽分离株的关系

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摘要

The present study was conducted to monitor wild birds based on the concern that they could disseminate avian influenza virus (AIV) between Mongolia and Korea, which shares the same migratory flyway. Of 1,528 fecal samples analyzed, 21 low-pathogenic AIV were isolated from 2007 to 2009. Nineteen AIV-positive fecal samples were identified as Anseriformes by DNA bar coding. The most frequently isolated subtype was H3 (61.9%), and the most prevalent hemagglutinineuraminidase combination was H3N8 (52.4%). Phylogenetic analysis was performed to assess their genetic relationships with those of domestic poultry and wild birds in Korea. The H3 and H7 surface genes belonged to the Eurasian lineage and clustered together in a group with Korean wild birds and poultry. Most N8 genes clustered phylogenetically with viruses isolated in Eurasia, whereas 1 of the Mongolian viruses and some Korean viruses belonged to the North American lineage. The polymerase acidic protein of the internal gene was not distinguishable from the H5N1 highly pathogenic AIV of the goose/guangdong/1/1996 (gs/gd)-like virus. Our study suggests that Mongolian AIV isolates have evolved with genetically multiple genotypes and are closely related to those of AIV in poultry as well as in wild birds in Korea.
机译：出于对野鸟可能在蒙古和韩国之间传播禽流感病毒（AIV）的担忧，它们进行了监测，而蒙古和韩国拥有相同的迁徙飞行路线。在2007年至2009年分析的1,528份粪便样本中，分离出21份低致病性AIV。通过DNA条码识别，有19份AIV阳性粪便样本被确认为厌食菌。最常见的亚型是H3（61.9％），最普遍的血凝素/神经氨酸酶组合是H3N8（52.4％）。进行了系统发育分析，以评估它们与韩国家禽和野生鸟类的遗传关系。 H3和H7表面基因属于欧亚血统，并与韩国野生鸟类和家禽聚集在一起。大多数N8基因在系统发育上与在欧亚大陆分离的病毒聚类，而蒙古病毒和一些韩国病毒中的1个属于北美谱系。内部基因的聚合酶酸性蛋白与鹅/广东/ 1/1996（gs / gd）样病毒的H5N1高致病性AIV不能区分。我们的研究表明，蒙古AIV分离株具有遗传上的多种基因型，并且与韩国的家禽和野生鸟类中的AIV密切相关。

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