The complete mitochondrial genome of a new geographical population of freshwater fish Macropodus hongkongensis (Freyhof & Herder, 2002)

Abstract

Macropodus hongkongensis (Freyhof & Herder, 2002), is sparsely distributed in Hong Kong and Guangdong provinces. Recently, a new geographical population of M. hongkongensis was discovered in the Wanquan River in the Hainan province. Therefore, this study focused on sequencing the complete mitochondrial genome of the new geographical population of Macropodus hongkongensis from the Wanquan River. The circular mtDNA molecule was 16,492 bp in size, and the overall base compositions were A (30.30%), C (24.90%), T (29.80%), and G (15.00%), with a slight bias toward A + T. The complete mitogenome encoded 13 protein-coding genes (PCGs), 22 tRNA genes, 2 rRNA genes, and a control region. Phylogenetic analysis indicated that M. hongkongensis of the Hainan Wanquan River was most closely related to the M. hongkongensis of the Gongdong population. These results provide useful genetic information for species identification and phylogenetic studies of Macropodus species.

Keywords:

• Macropodus hongkongensis
• mitochondrial genome
• phylogenetic analysis
• new geographical population

Acknowledgement

We would like to thank Editage (www.editage.cn) for English language editing.

Author contributions

Zhixin Shen designed the study and planned the experiments. Qingfeng Zhang drafted the manuscript and performed the data analysis. Fangyuan Li and Gaojun Li conceptualized and revised the manuscript. Yang Dong, Ji Wang, and Dikai Chen were responsible for sample collection, data acquisition, and revision of the manuscript. All authors agree to be accountable for all aspects of this study.

Ethical approval

This study did not require ethical approval or permission to collect samples.

Disclosure statement

No potential conflict of interest was reported by the authors.

Data availability statement

The genome sequence data that support the findings of this study are openly available in GenBank at [https://www.ncbi.nlm.nih.gov] under the accession number: OQ630878.1. The associated **BioProject**, **SRA**, and **Bio-Sample** numbers are PRJNA955001, SRR24305076, and SAMN34163124, respectively.

Additional information

Funding

This study was financially supported by the Science and Technology Special Fund of the Hainan Province (ZDYF2021XDNY299), the Natural Science Foundation of Hainan Province (320MS117) and Fund of Department Budget Project of Hainan Province (KYL-2022-11).