Figure 3

MCC phylogeny of the E gene of USUV including the subtype (denoted with †), rooted using a relaxed molecular clock. Branch tip times (x axis) reflect the dates of viral sampling. For each major node with Bayesian posterior probability (BPP) values >0.7, the corresponding mean and 95% HPD intervals for the age (years before present) are given, with the exception of the node marked with an asterisk (BPP = 0.6). Accession numbers and time-of sampling information for all sequences are given in Table 1. A color-code is used to reflect the different hosts from which USUV strains were isolated.