The first complete mitochondrial genome of Loimia arborea (Polychaeta: Terebellidae) and phylogenetic analysis

Xiong-Hui Xu; Chao-Yang Luo; Yuan Mu

doi:10.1080/23802359.2024.2429639

The first complete mitochondrial genome of Loimia arborea (Polychaeta: Terebellidae) and phylogenetic analysis

Mitochondrial DNA B Resour. 2024 Nov 25;9(11):1606-1610. doi: 10.1080/23802359.2024.2429639. eCollection 2024.

Authors

Xiong-Hui Xu¹, Chao-Yang Luo¹, Yuan Mu¹

Affiliation

¹ Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, China.

Abstract

In order to understand the molecular insights within the Terebellida, the complete mitochondrial genome of Loimia arborea was sequenced. The mitochondrial genome is 16,023 bp, with 13 protein-coding genes (PCGs), 23 transfer RNA (tRNA) genes, two ribosomal RNA (rRNA) genes, and a non-coding region (D-loop). Notably, two adjacent copies of methionine tRNA genes (trnMs) were detected. The phylogeny of Terebellida was constructed based on 13 PCGs from 13 species, two main clades were strongly supported, i.e., Cirratuliformia (clade A) and Terebelliformia (clade B). And the monophyly of the Terebellidae was restored.

Keywords: Loimia arborea; Terebellida; mitochondrial genome; phylogenetic analysis; trnM duplication.

Grants and funding

The present study was supported by the Erhai Watershed Ecological Environment Quality Testing Engineering Research Center of Yunnan Provincial Universities to YM [No. DXDGCZX03], as well as the Start-Up Projects on High-Level Talent Introduction of Dali University to YM [No. KY1916101940].