Figure 1.

Phylogenetic tree on the basis of the complete genome (panel a) and the deduced aa sequences of the S gene (panel b) of the coronaviruses from four coronavirus genera (Alphacoronavirus, Betacoronavirus, Gammacoronavirus and Deltacoronavirus). The trees were constructed by MEGA 6.05, using the neighbour‐joining method. Bootstrap was set in 1000 replicates. Bars of 2/0.2 indicate nt or aa substitutions per site. Names of each reference strain retrieved from GenBank are followed by corresponding accession numbers of each strain.