Fig. 1

Molecular phylogenetic analysis by maximum likelihood method. Maximum likelihood phylogenetic tree based on nucleotide full sequences of HIV-1 integrase gene. Moroccan strains are indicated by accession numbers with the corresponding subtypes (KU609274–KU609350). Reference sequence HXB2 is marked with black circle. Representative sequences of different subtypes and CRFs are indicated by country name with the corresponding subtype. Bootstrap values (1000 replicates) less than 70% are not shown