Abstract Positive selection and differential selective pressure analyses were carried out to study Haemagglutinin (HA) genes of H9N2 influenza viruses from different hosts in this paper.
摘要本文研究了不同寄主来源H9N2禽
毒血凝素基因正选择压力，以及
较了这些毒所受选择压力的
。
Abstract Positive selection and differential selective pressure analyses were carried out to study Haemagglutinin (HA) genes of H9N2 influenza viruses from different hosts in this paper.
摘要本文研究了不同寄主来源H9N2禽毒血凝素基因正选择压力，以及较了这些毒所受选择压力的。
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