Park C et al. (2023), The complete mitochondrial genome of deep-sea o...

ECB-ART-52825

Mitochondrial DNA B Resour 2023 Jan 01;812:1334-1338. doi: 10.1080/23802359.2023.2288441.

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The complete mitochondrial genome of deep-sea ophiuroid Ophioleila elegans (Echinodermata: Ophiuroidea) from the Shkolnik Guyot, a northwest Pacific seamount.

Park C , Kim EB , Ju SJ .

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Ophiuroids are a diversified benthic taxon in the deep sea. Given their various dispersal strategies, they are considered an adequate group to assess genetic connectivity, especially in the seamounts that function as islands. Ophioleila elegans A.H. Clark, 1949, in the family Ophiothamnidae, was previously reported from the Caiwei Guyot, a seamount in the northwest Pacific Ocean. Here, we described the mitochondrial genome of O. elegans collected from another seamount in the northwest Pacific. The whole mitogenome is 16,376 bp in length and encodes 13 protein-coding genes, two ribosomal RNA genes, and 22 transfer RNA genes. Phylogenetic analysis based on the mitogenome sequences showed that O. elegans was clustered with Histampica sp., the only species for which mitogenome sequence has been reported within the family Ophiothamnidae. The complete mitogenome of O. elegans first reported in the present study provides useful information for population genetics and evolutionary relationship of this taxon, especially in the northwest Pacific seamounts.

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References [+] :

Bankevich, SPAdes: a new genome assembly algorithm and its applications to single-cell sequencing. 2012, Pubmed

	Figure 1. Photographs of the Ophioleila elegans (scale bar: 1 cm) collected from the Shkolnik Guyot in the northwest Pacific Ocean (16° 5′ 45″ N, 151° 53′ 6.34″ E; depth: 1474 m). A: aboral view; B: oral view.
	Figure 2. Mitochondrial genome map of Ophioleila elegans. GC content was plotted by default values of window size (500) and score scale (1).
	Figure 3. The maximum-likelihood (ML) phylogenetic tree of Ophioleila elegans and other ophiuroid species based on 13 protein-coding mitochondrial genes. Numbers on each node denote the bootstrap support values from the ML and the Bayesian posterior probabilities from the Bayesian inference (BI) method. The scale bar indicates the number of substitutions per site.