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We present the first report of the complete mitochondrial genome of Opsariichthys uncirostris amurensis, which consists of 16,613 base pairs harboring 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, and a control region (D-loop). The overall base composition of the complete genome is A (27.15%), C (27.15%), T (26.77%), G (18.92%). The complete mitogenome of O. uncirostris amurensis, which was most closely related to O. bidens in the Bayesian inference tree, provides a better understanding of the phylogeny of the genus Opsariichthys. [ABSTRACT FROM AUTHOR]

The complete mitogenome of Sardinella zunasi was determined by next-generation sequencing. The S zunasi mitogenome was a circular 16,307 bp molecule that contained 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and one control region (D-loop). The gene arrangement was consistent with other Sardinella mitogenomes. The phylogenetic relationships of 29 Clupeoidei species based on 13 protein-coding genes from the available mitogenomes were analyzed. Sardinella zunasi clustered with Sardinella among Clupeidae, suggesting a closer relationship with this genus. These results will be useful for understanding the phylogenetic relationships, taxonomic classification, and phylogeography of the genus Sardinella relative to other genera of Clupeoidei [ABSTRACT FROM AUTHOR]

This study reports the complete mitochondrial genome of a Pungtungia herzi (♀) × Pseudopungtungia nigra (♂) hybrid. The P. herzi (♀) × P. nigra (♂) mitochondrial genome consists of 16,601 bp with 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes, and a control region (D-loop). The overall base composition of the complete mitochondrial genome is 29.99% A, 26.97% T, 17.11% G, and 25.92% C. In the phylogenetic tree, P. herzi (♀) × P. nigra (♂) is closer to P. herzi than to P. nigra. Obtaining the complete mitogenome of P. herzi (♀) × P. nigra (♂) will provide useful data regarding P. herzi and P. nigra conservation and evolution. [ABSTRACT FROM AUTHOR]

Kichulchoia brevifasciata is an endangered fish that is distributed across the Goheung Peninsula, South Korea. This is the first report of the complete mitochondrial genome of K. brevifasciata, which consists of 16,646 bp with 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes, and a control region (D-loop). The overall base composition of the complete genome is A (29.57%), T (28.08%), G (16.54%), and C (25.80%), with a high A+T content of 57.65%. Phylogenetic analysis showed that K. brevifasciata was most closely related to K. multifasciatas. [ABSTRACT FROM AUTHOR]

In this study, the complete mitochondrial genome of Norwegian skates imported to Korea was sequenced with a circular molecule of 17,121 bp, which consisted of 13 protein-coding genes (PCGs), 2 ribosomal RNAs, 22 transfer RNA genes, and a control region (D-loop). And among these sequences, 193 bp sequence in the D-loop of the genus Raja suggested the possibility of being used as a genetic marker for classification of Raja and Dipturus species. The BI phylogenetic tree by using the nucleotide sequences of 13 PCGs from 15 available mitogenomes of family Rajidae confirmed also that Norwegian skates imported to Korea form a group with Raja brachyura species with high branch value, and that this was a species of Raja brachyura. As above, these results would be expected to provide for the further understanding on the phylogenetic relationship, taxonomic classification and phylogeography of the family Rajidae. [ABSTRACT FROM AUTHOR]

The complete mitochondrial genome of the hybrid grouper Hyporthodus septemfasciatus (♀)×Epinephelus moara (♂) was obtained by next-generation sequencing. The mitochondrial genome was 16,499 bp long, consisting of 13 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes, and a control region (D-loop). The overall base composition is 28.62% A, 28.27% C, 16.27% G, and 26.84% T with 55.46% A þ T. In the maximum-likelihood (ML) phylogenetic analysis, the hybrid grouper belonged to the same clade as H. septemfasciatus (maternal inheritance). [ABSTRACT FROM AUTHOR]

This study is the first to research report the complete 16,563 bp mitochondrial genome of Coreoleuciscus aeruginos, which consists of 13 protein-coding genes (PCGs), 2 ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes, and a control region (D-loop). The overall base composition of the complete genome is 31.0% A, 28.04% T, 16.27% G, and 24.69% C, with a high A þ T content of 59.04%. According to our phylogenetic analysis, C. aeruginos is most closely related to Coreoleuciscus splendidus. [ABSTRACT FROM AUTHOR]

Halocynthia hilgendorfi ritteri is an ascidian distributed on the coast of Geoje Island in Korea and found on rocks. The mitochondrial genome of Halocynthia hilgendorfi ritteri consists of 15,181 bp with 13 protein-coding genes, 2 ribosomal RNAs, 23 transfer RNA genes. The overall base composition of the complete genome is 22.94% A, 43.32% T, 25.72% G, and 8.02% C, with a high AþT content of 66.26%. [ABSTRACT FROM AUTHOR]