Detailed phylogeny of CHIKV genotype ECSA.

<p>Subtrees include all nucleotide sequences of CHIKV genotype ECSA extracted from the maximum likelihood tree presented in the manuscript (<b>Fig. 4</b>). <b>Panel A</b> includes a cladogram with boostrap values (only topology is displayed); <b>a</b> phylogenetic tree in which horizontal lines are proportional to genetic distances is presented in <b>panel B</b>. Sequence information for each virus corresponds to virus strain name/date of isolation (when available)/country of isolation/symbol for the amino-acid at the position E1-226. The sequence from the CHIKV strain isolated and completely sequenced in the present study was named "BRAZZA_MRS1_Jul_2011_Congo_V". The sequences in red were also sequenced by the UMR_190_EPV (Marseille, France).