Figure 1.

Fine level clustering of members of Betacoronavirus based on RdRp gene. A, Population stratification at optimal peak k = 3 wherein the labels 1, 2, and 3 represent SARS‐CoV‐2, SARS‐CoV, and Bat‐CoV, respectively. B, Population stratification at minor peak k = 7 wherein the labels 1,2,3,4,5,6,7 represent Pangolin‐CoV, SARS‐CoV‐2, Bat‐CoV‐Cluster 1, SARS‐CoV, Bat‐CoV‐Cluster 2, Bat‐CoV‐Cluster 3, and Bat‐CoV‐Cluster 4, respectively. C, Phylogenetic tree of Betacoronavirus members (SARS‐CoV, SARS‐CoV‐2, Pangolin CoV, and Bat‐CoV) derived using RdRp gene employing maximum‐likelihood method. The black filled circles on the nodes denote bootstrap support more than 70%. The seven clusters observed using population stratification studies (Figure 1A, B) are mapped onto the phylogenetic tree. RdRp, RNA dependent RNA polymerase; SARS‐CoV, severe acute respiratory syndrome coronavirus