Complete mitochondrial genome of the hydrothermal vent barnacle Eochionelasmus ohtai (Cirripedia, Thoracica)

Abstract

Thoracican barnacles are common in hydrothermal vent fields. Here, we characterized the first mitogenome of a hydrothermal vent barnacle. The mitogenome of Eochionelasmus ohtai was 15,585 bp in length and had the typical pancrustacean gene arrangement. Its protein-coding genes (PCGs) were very similar in terms of length, AT content, and start and stop codons to those of other thoracican species. The phylogenetic tree constructed with 13 PCGs divided balanomorph barnacles, including E . ohtai , into two clades. This will further our understanding of the evolution of hydrothermal vent barnacles using mitogenomes, although further mitogenomic analysis of undetermined taxa is required.

First report on the complete mitochondrial genome of the deep-water scalpellid barnacle Arcoscalpellum epeeum (Cirripedia, Thoracica, Scalpellidae)

“…The genomic DNA extraction, sequencing, gene annotation, and phylogenetic analyses followed Kim et al. ( 2017 , 2018 ). The specimen used for the mitogenomic analysis has been deposited in the Biodiversity Research Museum, Academia Sinica, Taiwan (ASIZCR).…”

First discovery of the sessile barnacle Eochionelasmus (Cirripedia: Balanomorpha) from a hydrothermal vent field in the Indian Ocean

“…ohtai were obtained from the same specimen using the complete mitochondrial genome (NC_036957) determined by Kim et al . (2018). We could not include sequences of E .…”

“…ohtai manusensis for the Manus population, based on distinct differences in the ontogenetic development of the imbricating plates (Yamaguchi & Newman, 1997 a , 1997 b ). Phylogenetic and population genetic analyses have been conducted to elucidate their taxonomic position and dispersal capacity (Plouviez et al ., 2013; Herrera et al ., 2015; Kim et al ., 2018); however, DNA sequences of E . paquensis are unavailable in public databases.…”

“…Eochionelasmus ohtai, which is distributed widely in hydrothermal vent fields of the South-west Pacific Ocean, comprises two subspecies, E. ohtai ohtai for the North Fiji-Lau populations and E. ohtai manusensis for the Manus population, based on distinct differences in the ontogenetic development of the imbricating plates (Yamaguchi & Newman, 1997a, 1997b. Phylogenetic and population genetic analyses have been conducted to elucidate their taxonomic position and dispersal capacity (Plouviez et al, 2013;Herrera et al, 2015;Kim et al, 2018); however, DNA sequences of E. paquensis are unavailable in public databases.…”

Complete mitochondrial genome of the catophragmid barnacle Catomerus polymerus (Cirripedia, Thoracica, Balanomorpha, Catophragmidae)

“…Genomic DNA extraction, sequencing, gene annotation, and phylogenetic analyses followed the methods of Kim et al. ( 2017 , 2018 ). The specimen used for the mitogenome analysis has been deposited in the Biodiversity Research Museum of Academia Sinica, Taiwan (ASIZCR).…”