Fig. 1From: Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cellsPhylogenetic tree of 120 L. monocytogenes isolates based on 2400 bp nucleotide sequence of inlA. “*” denotes isolates with PMSC mutations in inlA. Ten isolates with mutation type 19 in inlA were grouped together in the region highlighted in greenBack to article page