Fig. 3.

Phylogentic tree of the full-length spike protein from different clades and lineages of the SARS-CoV-2. Maximum likelihood with 1000 bootstrap replications using Jones-Taylor-Thornton (JTT) model with uniform rates. ML heuristic method with the Nearest-Neighbor-Interchange was used as tree interface. Strains of the same clade are presented with the same colour. Amino acid substitutions except D614G were represented by grey highlight. Most of the sequences in the tree showed D614G substitution so not highlighted. Strains related to variant 1, that emerged in UK in 2020, were highlighted in cyan while strains related to variant 2, that emerged in South Africa in 2020, were highlighted in yellow.