FIG 1.

(A) Maximum likelihood (ML) phylogeny of the 233 V. parahaemolyticus genomes isolated from shrimp and humans, showing the seven lineages, I to VII. The strains from different regions are indicated in various colors, as follows: orange, Tianjin, Shandong, and Hebei; red, Guangdong, Hong Kong, and Hainan; purple, Guangxi; yellow, USA/Canada/Mexico; blue, Shanghai, Zhejiang, Jiangsu, and Fujian; green, Southeast Asia; dark, other regions. The branch with pirAB is indicated in red. Blue triangle indicates the environmental strains. (B) Minimum spanning trees (MSTrees) of 12 AHPND-related semiclonal groups based on nonrecombined SNPs. Each node indicates a strain. The numbers next to the branches indicate the SNP distance between two nodes.