The complete mitochondrial genome of a marine polychaete, Prionospio cf. japonica (Annelida: Spionidae)

Abstract

Prionospio Malmgren 1867 is one of the abundant genera of the family Spionidae Grube, 1850. Despite its rich diversity, information on their complete mitochondrial genome has remained unknown. In this study, we determined the complete mitochondrial genome of a spionid polychaete, Prionospio cf. japonica Okuda 1935. The specimen was collected from the fine sand in the intertidal zone of South Korea. The mitogenome consists of 15,267 base pairs, harboring 13 protein-coding genes (PCGs), 22 transfer RNAs, and two ribosomal RNAs. The maximum-likelihood phylogenetic tree based on the 11 PCGs showed that Prionospio cf. japonica grouped with other spionid polychaetes and formed a monophyletic group. Also, the mtDNA of P. cf. japonica was more closely related to that of non-polydorin spionid, Marenzelleria neglecta, than polydorin spionids. The molecular data will be valuable for studying evolutionary relationships among annelids.

Keywords:

• Prionospio cf. japonica
• illumina sequencing
• mitogenome
• mtDNA
• phylogeny
• Korea

Ethical approval

This study did not involve endangered or protected species. All the experiments involving animal samples were approved by the animal care and use committee of Inha University (Incheon, South Korea).

Author’s contributions

GH Lee contributed to the sampling in the field, identified worms, performed DNA experiments, analyzed the data, and wrote the manuscript. G-S Min contributed to the design and draft of the manuscript and revising the final version of the manuscript.

All authors agreed to be accountable for all aspects of the work.

Disclosure statement

The authors declare no conflicts of interest and are responsible for this study.

Data availability statement

The data supporting the findings of this study are openly available in the NCBI GenBank database (https://www.ncbi.nlm.nih.gov/nuccore/ON470577) under accession no. ON470577. The associated BioProject, SRA, and Bio-Sample numbers were PRJNA823822, SRR18651217, and SAMN27361394, respectively.

Additional information

Funding

This study was supported by a research fund from Inha University (without a fund number).