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Complete mitochondrial genome of the freshwater fish Acrossocheilus longipinnis (Teleostei: Cyprinidae): genome characterization and phylogenetic analysis

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Abstract

The genus Acrossocheilus is composed of small- to medium-sized barbine species and is distributed in Laos, Vietnam, Hainan, Taiwan and mainland China. To verify the molecular phylogeny of the genus Acrossocheilus, we report a new whole mitogenome of A. longipinnis, which provides new insights to better understand the taxonomic status of Acrossocheilus fishes. Phylogenetic trees presented two major clades based on whole mitogenomic data from sixteen Acrossocheilus species. Clade I is the ancestral group, including A. monticola and A. yunnanensis. The remaining species form clade II, which can be separated into two subclades (subclades A and B) with strong support. Subclade B clusters indicate that A. longipinnis forms a monophyletic group with A. iridescens and A. barbodon. Landscape evolution can strongly affect the evolutionary diversification of freshwater fishes. The Nanling and Wuyi Mountains, Taiwan Strait and Qiongzhou Strait played a key role in the geographical barriers for Acrossocheilus diversification. Our results improve our understanding of Acrossocheilus mitogenome structure and evolution, which will be useful for phylogenetic analysis and species identification.

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Acknowledgments

This research was funded by grants from the National Natural Science Foundation of China (No. 31872207 and 31172066) and Shanghai Universities First-class Disciplines Project of Fisheries.

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Correspondence to Jin-Quan Yang.

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The authors declare no conflict of interest.

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Experiments were performed in accordance with the recommendations of the Ethics Committee of the Shanghai Ocean University. These policies were enacted according to the Chinese Association for the Laboratory Animal Sciences and the Institutional Animal Care and Us Committee (IACUC) protocols. Approval number: Shou-DW − 2018-021.

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Hou, XJ., Lin, HD., Tang, WQ. et al. Complete mitochondrial genome of the freshwater fish Acrossocheilus longipinnis (Teleostei: Cyprinidae): genome characterization and phylogenetic analysis. Biologia 75, 1871–1880 (2020). https://doi.org/10.2478/s11756-020-00440-y

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  • DOI: https://doi.org/10.2478/s11756-020-00440-y

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