Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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The Complete Mitochondrial Genome of the Fourhorn Sculpin Triglopsis quadricornis (Perciformes, Cottidae) from Sirius Passet, North Greenland

  • Kim, Bo-Mi (Research Unit of Cryogenic Novel Material, Korea Polar Research Institute, Korea Institute of Ocean Science & Technology) ;
  • Kihm, Ji-Hoon (Division of Earth Sciences, Korea Polar Research Institute, Korea Institute of Ocean Science & Technology) ;
  • Park, Tae-Yoon S. (Division of Earth Sciences, Korea Polar Research Institute, Korea Institute of Ocean Science & Technology)
  • Received : 2021.07.20
  • Accepted : 2021.10.12
  • Published : 2021.12.30
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Abstract

Triglopsis quadricornis Linnaeus, 1758 (Cottidae) is distributed in the Atlantic and Arctic and has four unique bony protuberances on its head. Here, we report the complete, circular, and annotated mitochondrial genome of T. quadricornis. The complete T. quadricornis mitochondrion was sequenced by high-throughput Illumina HiSeq platform. The sequences are 16,736 bp in size and contains 13 protein-coding genes (PCGs), 22 transfer RNA (tRNA) genes, a control region, and large and small ribosomal subunits. The overall genomic structure of T. quadricornis mitochondrion was conserved with the gene arrangement of Megalocottus and Myoxocephalus species, and phylogenetic analysis supports their sister relationships. Most PCGs consist of TAA or TAG as a termination codon, whereas COII, ND4, and CYTB have T-- as a stop codon. This complete mitochondrial DNA information of T. quadricornis will provide an essential genomic resource to elucidate the phylogenetic relationship and evolutionary history of the family Cottidae.

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Acknowledgement

Sampling was executed under permissions from Greenland government (permission no. G16-074, C-17-4, C-18-4-09). We thank the Villum Research Station and the Station Nord for logistic support. The authors report no conflicts of interest and are solely responsible for the content and writing of this manuscript. This research was supported by Korea Polar Research Institute (PE21060).

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