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. 2019 Jun 12;10:1262. doi: 10.3389/fmicb.2019.01262

FIGURE 4.

FIGURE 4

Phylogenetic analysis of the portal protein from Spirochaetes SAGs (red), Spirochaetes isolates (bold) and other bacteria and phages, showing segregation of the sequences based on their host. The tree was generated using maximum likelihood, with 100 bootstrap replicates, using the LG model with a gamma distribution (+G), estimated rates of variation among sites and a proportion of invariable sites (+I). >99% bootstrap support is indicated as black circles at nodes. Scale bar represents the number of amino acid substitution per site.