Caption: Orthologous groups of genes (orthogroups) were identified from protein sequences using
the OrthoFinder tool v2.5.4. An orthogroup is
defined as a group of genes which are descended from a single gene in the last common ancestor of a
group of species or strains. Orthogroups may include paralogues, in which a gene duplication event has
occurred in one or more of the genomes analysed. Orthogroups can be further divided into single copy
orthogroups, in which one copy is present in all subjects with no duplications or deletions; and strain
specific orthogroups, in which all members of the orthogroup are present only in one subject. Unique
genes which are not part of an orthogroup are classified as unassigned.