期刊
JOURNAL OF VIROLOGY
卷 83, 期 4, 页码 2015-2019出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/JVI.02047-08
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资金
- RAPIDD program of the Science & Technology Directorate, Department of Homeland Security
- Fogarty International Center, National Institutes of Health
We report the existence of two distinct sublineages of avian metapneumovirus (MPV) subtype C, a virus which has caused serious economic loss in commercial turkey farms in the United States. This subtype is closely related to human MPV, infects multiple avian species, and is globally distributed. The evolutionary rates of this virus are estimated to be 1.3 x 10(-3) to 7 x 10(-3) substitutions per site per year, and coalescent estimates place its emergence between 1991 and 1996. The four genes examined show a concordant demographic pattern which is characterized by a rapid increase in population size followed by stable population grown until the present.
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