Fig. 3.
Dendrogram constructed from the PFGE profiles generated from NotI-digested genomic DNA of V. cholerae O139 isolates in Guangdong Province, southern coastal area of China. The dendrogram was constructed by BioNumerics software v. 6.6 using the Dice coefficient and unweighted pair-group method with arithmetic mean algorithm (UPGMA). The scale shows percent similarity.