Fig. 1

Phylogenetic tree based on the rrs gene sequence (~1400 bp) showing the relationship between the Lactococcus strains studied here and the other members of the genus. The tree was constructed based on Jukes–Cantor distance using the neighbor joining method. Bootstrap analyses were performed with 1000 repetitions and only values higher than 50 % are shown. The Genbank accession numbers of the Lactococcus species are shown in parentheses