Fig. 4.

Phylogenetic tree of the entire dataset in radial/collapsed form (unrooted). The picture shows the unrooted tree resulting from the ML analysis built from the entire dataset visualized in radial form. The main clusters (SS) are shown in different colors. The relative entry point of the C¹⁴⁸⁰⁵T and C¹⁴⁴⁰⁸T mutations in the tree, their area of influence (shaded area), the inferred node from which evolved the SS4 cluster and the central node at the root of the SS4 cluster (filled yellow circle) are shown. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)