tailieunhanh - Báo cáo khoa học: " Panorama phylogenetic diversity and distribution of type A influenza viruses based on their six internal gene sequences"

Tham khảo tài liệu 'báo cáo khoa học: " panorama phylogenetic diversity and distribution of type a influenza viruses based on their six internal gene sequences"', luận văn - báo cáo phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | BioMed Central Virology Journal Open Access Panorama phylogenetic diversity and distribution of type A influenza viruses based on their six internal gene sequences Ji-Ming Chen 1 Ying-Xue Sun1 Ji-Wang Chen2 Shuo Liu1 Jian-Min Yu1 Chao-Jian Shen1 Xiang-Dong Sun1 and Dong Peng1 Address The Laboratory of Animal Epidemiological Surveillance China Animal Health Epidemiology Center Qingdao PR China and 2The Feinberg School of Medicine Northwestern University Chicago USA Email Ji-Ming Chen - jmchen66@ Ying-Xue Sun - sunyingx2004@ Ji-Wang Chen - jiwang@ Shuo Liu - liushuo_z@ Jian-Min Yu - yu_jianmin16@ Chao-Jian Shen - shenchaojianyy@ Xiang- Dong Sun - sun_xiangdong@ Dong Peng - hobohero@ Corresponding author Published 8 September 2009 Received 6 August 2009 Accepted 8 September 2009 Virologyjournal 2009 6 137 doi 1743-422X-6-137 This article is available from http content 6 1 137 2009 Chen et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Type A influenza viruses are important pathogens of humans birds pigs horses and some marine mammals. The viruses have evolved into multiple complicated subtypes lineages and sublineages. Recently the phylogenetic diversity of type A influenza viruses from a whole view has been described based on the viral external HA and NA gene sequences but remains unclear in terms of their six internal genes PB2 PB I PA NP MP and NS . Methods In this report 2798 representative sequences of the six viral internal genes were selected from GenBank using the web servers in NCBI Influenza Virus Resource. Then the phylogenetic relationships among the representative sequences were .