Dataset Information

Complete mitochondrial genome of darkfin hind Cephalopholis urodeta (Perciformes, Epinephelidae).

ABSTRACT: Darkfin hind, Cephalopholis urodeta, belongs to the subfamily Epinephelinae. It is one of the most important fish species in coral-reef ecosystem. In this study, the complete mitochondrial (mt) genome of C. urodeta has been determined. It was 16,592?bp in length and contained 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes and 2 non-coding regions. The mitogenome sequence of C. urodeta shared 94% and 92% similarity to that of C. sonnerati and C.sexmaculata, respectively. Phylogenetic tree was made based on the concatenated sequences of 12 protein-coding genes on mtH-strand. All the results provide insights into the evolution in the subfamily Epinephelinae.

SUBMITTER: Guo M

PROVIDER: S-EPMC7799697 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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Complete mitochondrial genome of darkfin hind Cephalopholis urodeta (Perciformes, Epinephelidae).

Guo Minglan M Huang Hui H Gao Yongli Y

Mitochondrial DNA. Part B, Resources 20161209 1

Darkfin hind, Cephalopholis urodeta, belongs to the subfamily Epinephelinae. It is one of the most important fish species in coral-reef ecosystem. In this study, the complete mitochondrial (mt) genome of C. urodeta has been determined. It was 16,592 bp in length and contained 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes and 2 non-coding regions. The mitogenome sequence of C. urodeta shared 94% and 92% similarity to that of C. sonnerati and ...[more]

PMID: 33473676

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Project description:Groupers of the family Epinephelidae are a diverse and economically valuable group of reef fishes. To investigate the evolution of their mitochondrial genomes we characterized and compared these genomes among 22 species, 17 newly sequenced. Among these fishes we identified three distinct genome organizations, two of them never previously reported in vertebrates. In 19 of these species, mitochondrial genomes followed the typical vertebrate canonical organization with 13 protein-coding genes, 22 tRNAs, two rRNAs, and a non-coding control region. Differing from this, members of genus Variola have an extra tRNA-Ile between tRNA-Val and 16S rRNA. Evidence suggests that this evolved from tRNA-Val via a duplication event due to slipped strand mispairing during replication. Additionally, Cephalopholisargus has an extra tRNA-Asp in the midst of the control region, likely resulting from long-range duplication of the canonical tRNA-Asp through illicit priming of mitochondrial replication by tRNAs. Along with their gene contents, we characterized the regulatory elements of these mitochondrial genomes' control regions, including putative termination-associated sequences and conserved sequence blocks. Looking at the mitochondrial genomic constituents, rRNA and tRNA are the most conserved, followed by protein-coding genes, and non-coding regions are the most divergent. Divergence rates vary among the protein-coding genes, and the three cytochrome oxidase subunits (COI, II, III) are the most conserved, while NADH dehydrogenase subunit 6 (ND6) and the ATP synthase subunit 8 (ATP8) are the most divergent. We then tested the phylogenetic utility of this new mt genome data using 12 protein-coding genes of 48 species from the suborder Percoidei. From this, we provide further support for the elevation of the subfamily Epinephelinae to family Epinephelidae, the resurrection of the genus Hyporthodus, and the combination of the monotypic genera Anyperodon and Cromileptes to genus Epinephelus, and Aethaloperca to genus Cephalopholis.

Dataset Information

Complete mitochondrial genome of darkfin hind Cephalopholis urodeta (Perciformes, Epinephelidae).

Publications

Complete mitochondrial genome of darkfin hind <i>Cephalopholis urodeta</i> (Perciformes, Epinephelidae).

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