Fig. 2
From: Phylogenomic assessment of 23 equid alphaherpesvirus 1 isolates obtained from USA-based equids
Maximum likelihood tree (viewed in Geneious Prime (ver. 2020.2.4)) showing 137 EHV-1 isolates including the 23 EHV-1 isolates sequenced for the present study, with an EHV-8 outgroup (shown in pink, Genbank accession NC017826). Diagram created using an alignment subsequently modeled using ModelFinder [27] in Iqtree (ver. 1.6.12) [28]. Branch labels represent bootstrap values which exceeded 70%. Evidence of isolate grouping by regional origin (Europe, USA, Australia or Asia) is evident, as is grouping of isolates which were obtained from individual outbreaks