Figure 5From: Characters of homogentisate oxygenase gene mutation and high clonality of the natural pigment-producing Vibrio choleraestrainsThe PFGE phylogenetic tree of the O139 pigment producing strains and other O139 non-toxigenic strains. Strains marked with black square are pigment producing strains and white square are non-pigment producing strains which are included in the VC1344-VC1347 sequence analysis.Back to article page