Fig. 1: Phylogenetic characterization of SARS-CoV-2 based on the 7096-aa polyprotein pp1ab.
From: Evolutionary and structural analysis of SARS-CoV-2 specific evasion of host immunity

Phylogenetic tree demonstrating the relationship of SARS-CoV-2 to other CoVs. Phylogenetic analysis involved 121 pp1ab sequences from the subfamily Coronavirinae, including representatives of four genera; α-CoV, β-CoV, γ-CoV, and δ-CoV. The color codes distinguish between various groups/types of coronaviruses. The phylogenetic tree was reconstructed using the maximum likelihood method with the WAG substitution model. Bootstrap values ≥50% are shown along the branches. Scaled phylogram of this tree with branch lengths reflecting the amount of genetic change is provided in Supplementary Fig. S1.