Fig. 4

Reduced median network showing the genetic relationships among the control region haplotypes of Platycephalus sp. 1 populations. The sizes of the circles represent the sum of haplotype frequencies from all populations. Mutational steps are indicated as bars for the number of substitutions separating two haplotypes. SH1 was the most common haplotype among the Chinese coastal populations, and SH2 was the most common haplotype in the Tokyo Bay population