Fig. 1

Maximum likelihood phylogenetic tree (ML) of the 5’UTR gene sequences from 47 reference sequences and 45 sample sequences. The tree branches, including the outer circle, are colored according to the HCV types and subtypes 1a and 1b. The tree scale refers to the number of nucleotide substitutions per site. ML tree showed that genotyping based on 5’UTR sequencing was the least discriminating showing erroneous clustering mainly with respect to G1a (in green in the figure), G1b (in blue) and G6 (in brown). We can also observe that G4 (in light blue) is divided into 2 groups