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. 2020 Dec 30;7(1):veaa098. doi: 10.1093/ve/veaa098

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© The Author(s) 2020. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — Unrooted phylogenies of the virus strains. (a) ML tree in genomic regions with recombination tracts removed. (b) Neighbor-joining tree using synonymous mutation (d_S) distance in genomic regions with recombination tracts removed. (c) Neighbor-joining tree using nonsynonymous mutation (d_N) distances in genomic regions with recombination tracts removed. (d) The MLs tree at the RBD ACE2 contact residues (51 amino acids) region. The bootstrap values are based on 1,000 replicates. The associated distance matrix for (b) and (c) can be found in Table 3.