Skip to main content
. Author manuscript; available in PMC: 2017 Mar 14.
Published in final edited form as: Curr Opin Virol. 2016 Mar 14;16:143–150. doi: 10.1016/j.coviro.2016.02.007

Figure 1.

Figure 1

Phylogenetic tree showing the relationships among enzootic and endemic/epidemic CHIKV lineages and a time estimate for introduction of the Asian lineage from Africa into Asia; sl indicates IOL sublineage with second-step A. albopictus-adaptive mutations [56]. The tree was generated using concatenated open reading frames from all complete genomic sequences found in the Genbank library using maximum likelihood implemented in PAUP 4.0 [64]. The branch colors represent countries or regions of origin for each CHIKV sample. The scale indicates nucleotide sequence divergence.