Figure 1
From: Alignment-free phylogeny of whole genomes using underlying subwords
Whole-genome phylogeny of the 2009 world pandemic Influenza A (H1N1) generated by UA. In green and red are represent the two main clades, where the green Mexico/4108 is probably the closest isolate to the origin of the influenza. In blue and orange are two of the possible early evolutions of the viral disease. The organisms which do not fall into one of the two main clades according to the literature are in black.