Figure 3: Evolutionary history of Hemibagrus inferred by using the maximum likelihood method based on the Hasegawa-Kishino-Yano model. The tree with the highest log likelihood (−5677.4825) is shown. Bootstrap values are indicated on each node of the tree (500 replicates). Bar indicates the number of substitution changes estimated using Hasegawa-Kishino-Yano model (HKY) with gamma distribution . The analysis involved 119 nucleotide sequences. All positions containing gaps and missing data were eliminated. There were a total of 597 positions in the final dataset.