The impact of positive selection and mutation in prevalence of representative O/Mya-98 foot and mouth disease strains during 2009-2010
文献类型: 外文期刊
第一作者: Kuang, Wendong
作者: Kuang, Wendong;Bai, Xingwen;Qi, Guocai;Hao, Xiaofang;Li, Pinghua;Lu, Zengjun;Bao, Huifang;Sun, Pu;Wu, Lei;Liu, Zaixin
作者机构:
关键词: Foot-and-Mouth disease (FMDV);Mya-98;positive selection;mutation;recombination
期刊名称:AFRICAN JOURNAL OF MICROBIOLOGY RESEARCH ( 影响因子:0.539; 五年影响因子:0.564 )
ISSN: 1996-0808
年卷期: 2012 年 6 卷 14 期
页码:
收录情况: SCI
摘要: In this study, we investigated the impact of adaptive positive selection on each protein in Open Reading Frame (ORF) (except for 3D(pro)) of serotype O Foot-and-Mouth disease (FMDV). The majority of residues under positive selection were located in antigenic sites or close to heparin interacting regions. There were five identical positions between positive selection sites and substitution sites occurred in three FMDV O/Mya-98 strains (O/JX/CHA/2010, O/VN/LC169/2009 and O/HKN/20/2010) prevalent in Southeast Asia during 2009-2010. In addition, no significant recombination signal was detected in ORF of the Eurasian (Asia1, A, C, and O) serotypes including the three strains above, the result indicated no recombination events occurred in the three strains. We inferred selection and amino acid mutation contributed greatly to the prevalence of the three strains during 2009-2010.
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