Fig. 1

Overview of the genome assemblies of the dominant strains in NWC_1 and NWC_2. a The Circos plots [32] show the genome assemblies of S. thermophilus and L. delbrueckii subsp. lactis, and of a S. thermophilus phage and the L. delbrueckii subsp. lactis plasmid from NWC_1 (not drawn to scale), see main text. b Circos plots are shown for the genome assemblies of S. thermophilus, L. delbrueckii subsp. lactis and two L. helveticus strains from NWC_2, as well as their plasmids and phages (not drawn to scale). The circles illustrate (moving from the outer ring inwards) 1) the genome size, 2) PacBio coverage along the genome (green: above average coverage, red: below average coverage), 3) the dnaA start point and all CRISPR arrays, 4) all identified DNA methylation motifs that were used to match plasmids to their respective bacterial host