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Phylogenetic analysis of the ACE2 sequences of lagomorphs and of other mammals. Human ACE2 sequence was used as reference sequence. The phylogenetic analysis was performed with a maximum likelihood (ML) method using the Jones-Taylor-Thornton model with a gamma distribution and with bootstrap values based on 1000. The tree scale is reported on the bottom left. The tree was visualized by the online tool ETE Toolkit (www.etetoolkit.org).
