Phylogenetic tree based on luxS homologous sequences from different Vibrio species. A) Phylogenetic tree based on the luxS gene sequence following the neighborjoining clustering method using ArboDraw. B) Protein coding sequence alignment of different homologous LuxS protein sequences. Alignment of the translated genes was carried out using the Multalin program  and edited with Gendoc. Accession numbers:V. mimicus, [GenBank:AB232376], V. cholerae [GenBank:AB114425], V. anguillarum [GenBank:DQ466077], V. algynolyticus [GenBank:AY391122], V. harveyi [GenBank:AF120098], V. splendidus [GenBank:NZ_AAMR01000072], V. vulnificus [GenBank:AF305637], V. fischeri [GenBank:CP000020], V. angustum [GenBank:NZ_AAOJ01000005].