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Migratory flyway and geographical distance are barriers to the gene flow of influenza virus among North American birds

Ecology Letters

By:
, , , , , , , , , , , ,
DOI: 10.1111/j.1461-0248.2011.01703.x

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Abstract

Despite the importance of migratory birds in the ecology and evolution of avian influenza virus (AIV), there is a lack of information on the patterns of AIV spread at the intra-continental scale. We applied a variety of statistical phylogeographic techniques to a plethora of viral genome sequence data to determine the strength, pattern and determinants of gene flow in AIV sampled from wild birds in North America. These analyses revealed a clear isolation-by-distance of AIV among sampling localities. In addition, we show that phylogeographic models incorporating information on the avian flyway of sampling proved a better fit to the observed sequence data than those specifying homogeneous or random rates of gene flow among localities. In sum, these data strongly suggest that the intra-continental spread of AIV by migratory birds is subject to major ecological barriers, including spatial distance and avian flyway. ?? 2011 Blackwell Publishing Ltd/CNRS.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Migratory flyway and geographical distance are barriers to the gene flow of influenza virus among North American birds
Series title:
Ecology Letters
DOI:
10.1111/j.1461-0248.2011.01703.x
Volume
15
Issue:
1
Year Published:
2012
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Ecology Letters
First page:
24
Last page:
33
Number of Pages:
10