Fig. 5From: The Ess/Type VII secretion system of Staphylococcus aureus shows unexpected genetic diversityThe distribution of essC variants across the S. aureus population. Maximum likelihood reconstruction of the phylogeny of 103 UKCRC S. aureus isolates based on MLST allele phylogeny, annotated by essC variant. Variant essC1 is highlighted in red; essC2 in green; essC3 in blue and essC4 in purple. The single variant where essC has been deleted is colored in ochreBack to article page