Fig. 2
From: The origin and underlying driving forces of the SARS-CoV-2 outbreak
A haplotype network of sampled SARS-CoV-2 genomes. The haplotype network was constructed by the median joining algorithm. Circle areas are proportional to the number of sequences. Numbers along the branches are mutation steps between haplotypes. Mutation types are given on the branches. Mutations involved in different evolutionary pathways or occurred more than once are enclosed. Also see Table 2 for comparison. Seven genomes—EPI_ISL_404253, 407,079, 408,511, 408,512, 408,487, 410,480, and 408,483—were excluded from this analysis because their sequences contained too many ‘N’ notations