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Abstract
The Siamese fighting fish (Betta splendens) is one of the popular aquarium fish. Serious attentions have been paid to the biodiversity of the fish. The mitochondrial genome of the Siamese fighting fish is reported to be 17 099 bp and includes 37 genes. The gene organization is similar to other fish mitogenomes. The control region is AT-rich and includes three tandem repeats. Phylogenetic analysis reveals that the fish is close to fish in the Macropodus genus. This mitogenome will assist in studying the mitochondrial variations and population structure in this fish and examine the evolutionary relationship among fish in the Osphronemidae family.
Declaration of interest
This work was supported by the Special Scientific Research Fund for Central Nonprofit Institutes, Chinese Academy of Fishery Sciences (No. 2014A11JC07). The authors report no conflicts of interest. The authors are responsible for the content and writing of the paper.