Fig. 1

a) 16s rRNA gene and b) pan-genome phylogenetic trees both differentiated gastric and EHS genomes. The pan-genome tree more accurately organized EHS into clades consistent with known phenotypic and genetic similarities (e.g., size, morphology, biochemical traits). c) Heatmap and hierarchal clustering of ANI values. Genomes clustered into gastric versus EHS clades based on ANI similarity that resembled the pan-genome tree. See supplement for table with ANI values (Additional file 1: Table S1).