Fig. 5From: Targeting influenza A virus by splicing inhibitor herboxidiene reveals the importance of subtype-specific signatures around splice sitesConcurrent evolution of the collinear M1 and spliced M2 isoform. Comparison between phylogenetic trees of the M segment and M2 coding sequence (CDS). Colors represent the subtypes and lines connect the same strains. The strains are correlated to Fig. 4a, bBack to article page