Additional file 5.

LTR phylogenetic tree constructed by the neighbour-joining method of HTLV-1 strains in 8 Noir Marron (in red) and HTLV-1 sequences of the database. The Noir Marron data already published are coded "NM". The H24 strain was used as out-group. The HTLV-1 strains were aligned with the DAMBE program (version 4.2.13). The final alignment was submitted to the Modeltest program (version 3.6) to select, according to the Akaike Information Criterion (AIC), the best model to apply to phylogenetic analyses. The selected model was the GTR. Bootstrap support (1,000 replicates) is noted on the branch of the tree.

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Brucato et al. BMC Evolutionary Biology 2010 10:314   doi:10.1186/1471-2148-10-314