In these studies, plasmid-cured strains of L. lactis
subsp. lactis IL1403 and L. lactis subsp. cremoris MG1363,
whose genomes were sequenced in 1999/2001 and 2007, respectively,
are most commonly used (Bolotin et al. 2001;
Wegmann et al. 2007; Linares et al. 2010)