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. 2011 Jan 7;6(1):e16087. doi: 10.1371/journal.pone.0016087

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Graham et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Phylogenetic tree inferred for two hundred thirty five virus whole genomes sampled from Canada and representative global reference genomes using the Neighbour-joining (NJ) method. Scale bar indicates the number of nucleotide substitutions per site. Colour-coding: clade 1 (not shown); clade 2 (orange); clade 3 (teal); clade 4 (yellow); clade 5 (green); clade 6 (blue), and clade 7 (pink).