Genetic map comparison of the pln loci for L. plantarum B21, WCFS1 and C11. L. plantarum reference strains C11 and WCFS1 data obtained from previously publish works [47, 54, 92]. Small black arrows represent promoter sequences. The pln loci represented by arrows in different colours corresponding to each operon, yellow: regulatory operon (plnABCD); red/green: two-peptide bacteriocins operon (plnEFI and plnJKLR); blue: plnMNOP operon, purple: bacteriocin transport operon (plnGHSTUVWXY), black: transposon.