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. 2022 Feb 22;11:e73552. doi: 10.7554/eLife.73552

Figure 2. Population structure and host ecology in the genus Campylobacter.

(a) Phylogenetic tree of 631 Campylobacter isolates from 30 species reconstructed using a gene-by-gene concatenated alignment of 820 core genes (shared by >95% of isolates) and an approximation of the maximum-likelihood (ML) algorithm implemented in RAxML. The species name is indicated adjacent to the associated sequence cluster. The scale bar indicates the estimated number of substitutions per site. (b) Isolation source of Campylobacter species with n ≥ 3 isolates.

Figure 2.

Figure 2—figure supplement 1. Population structure of the Campylobacteraceae family.

Figure 2—figure supplement 1.

Phylogenetic tree of 506 isolates that belong to the Campylobacteraceae family with Helicobacter pylori used as an outgroup. Different colors correspond to main species with number of isolates greater than three. The tree was reconstructed using a gene-by-gene concatenated alignment of 799 core genes shared by >95% by all isolates and an approximation of the maximum-likelihood (ML) algorithm implemented in RAxML. The scale bar indicates the estimated number of substitutions per site.
Figure 2—figure supplement 2. Core genome species trees.

Figure 2—figure supplement 2.

Single-species trees for nine Campylobacter species with >4 isolates demonstrating the diversity for among species. The scale bars indicate the estimated number of substitutions per site. *The scale for the tree corresponding to C. hepaticus is 10 times smaller than the rest.
Figure 2—figure supplement 3. Overview of host associations of Campylobacter species.

Figure 2—figure supplement 3.

Abundance and diversity of 631 Campylobacter isolates in each host and environment. Different colors correspond to main species with number of isolates ≥3. The number of isolates is shown on the y-axis and the various isolation sources are on the x-axis.
Figure 2—figure supplement 4. Core genome species trees.

Figure 2—figure supplement 4.

Single-species trees for C. jejuni, C. coli, and C. fetus species that contain isolates from multiple hosts and countries. The scale bars indicate the estimated number of substitutions per site.