Table S1 Primers for strain construction and confirmation. Primers for DJ-PCR-based fluorescent tagging were designed as previously described (Hammond et al. 2011b; Boone et al. 2020).
Full genomic DNA was extracted from 20 strains of Propionibacterium freudenreichii. Genomic inserts of 300 pb were paired-end sequenced with Illumina GAIIX. 36 bp reads were assembled with Velvet soft
