Maximum likelihood (ML) tree of the 1069-bp cytochrome b gene sequences of Acheilognathus tabira tabira individuals from the Seto Inland Sea and Ise Bay regions. Numbers at nodes indicate Shimodaira-Hasegawa-like approximate likelihood ratio test values (left), ultrafast bootstrap values (middle) in the ML tree, and Bayesian posterior probabilities (right) in Bayesian inference tree. Each value is indicated when it exceeds 80%, 95%, and 0.80. Numbers in parentheses indicate the number of specimens. The parentheses after each Lineage name indicate the natural distribution area. The statistical parsimony network of A. t. tabira is shown to the left of the tree. Pie charts of Lineage I indicate the relative frequencies of haplotypes of the five groups defined by SAMOVA.