The mitochondrial genome of the bone-eating worm Osedaxrubiplumus(Annelida, Siboglinidae)

Abstract

Osedaxrubiplumus(Annelida, Siboglinidae)uses heterotrophic bacteria to feed onvertebrate carcasses and is currently found in the Pacific, Antarctic and Indian Ocean.Here, we report its nearly complete mitochondrial genomes assembled for 2 individuals, one from the East Pacific and the other from the Southwest Indian Ocean. Recoveredmitogenomes were 15591 and 15972 bp in length, with both consisting of 37 typical metazoan mitochondrial genes. All genes were transcribed from the same strand, and arranged in the same order as the other siboglinids, revealing conserved gene arrangement withinSiboglinidae. Phylogeneticanalysis of 13 protein coding genes confirms the placement of Osedaxsister to the Vestimentifera+Sclerolinum clade.

Keywords:

• Osedax
• mitogenome
• Southwest Indian Ridge
• East Pacific

Disclosure statement

The authors declare no conflict of interest.The authors alone are responsible for the content and writing of the paper.

Data availability statement

All sequencesgenerated or used in the present study are deposited in NCBI GenBank (https://www.ncbi.nlm.nih.gov) and the accession numbers are detailed in Figure 1.

Additional information

Funding

The authors thank: all the scientists and crew on the R/V “Xiangyanghong 10”for their help in the specimens’ collection during the expeditions DY43 and DY49. This work was supported by the Foundation of China Ocean Mineral Resources R & D Association [No. DY135-E2-1-02 and DY135-E2-1-01], USA National Science Foundation OCE-1155188 and ANT-1043745, and the National Natural Science Foundation of China (NSFC) [Grant No. 41606156]. Cruises DY43 and DY49 were supported by the Foundation of China Ocean Mineral Resources R & D Association [No. DYHC-135-43 and No. DYHC-135-49].