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The yellowfin seabream, Acanthopagrus latus Houttuyn 1782, is a commercially and ecologically important species and a good model for studies of sexual differentiation. In this study, the complete mitochondrial genome of A. latus has been determined, which is 16,635 base pairs (54.3% A + T content) in length and consists of 13 protein-coding genes, 22 transfer RNAs, two ribosomal RNAs, and a 948 bp D-loop region. The phylogenetic analyses showed that A. latus has a close relationship with Acanthopagrus schlegelii Bleeker 1854.The complete Eclipophleps carinata mitogenome was sequenced through Illumina HiSeq 2500 platform and the resulting data were analyzed in this paper. The mitochondrial genome of E. carinata is a typical circular DNA molecule of 15,781 bp with 37 genes and 74.5% A + T content, which encoded 13 protein-coding genes (PCGs), 22 tRNA genes, two rRNA genes, and the control region. The E. carinata mitochondrial genome and 27 mitochondrial genomes (downloaded from NCBI) were employed to construct phylogenetic tree, in which Ruspolia dubia and Teleogryllus occipitails were the outgroups. Phylogenetic reconstruction validated the taxonomic status of E. carinata, which was placed in the monophyletic Gomphocerinae in Acrididae.We determined a complete mitochondrial genome of Episoriculus leucops. This mitogenome is a circular molecule with 16,838 bp in length, containing 13 protein-coding genes, 22 transfer RNA genes (tRNA), and two ribosomal RNA genes (rRNA). This mitochondrial genome has a base composition of 32.8% A, 29.2% T, 24.9% C, and 13.1% G. We reconstructed Bayesian phylogenetic tree by taking advantage of 19 species belonging to subfamily Soricinae. Phylogenetic tree shows that the long-tailed red-toothed shrew belongs to genus Episoriculus, and it is the closest relationship with E. caudatus. This mitochondrial genome provides an important resource for addressing taxonomic issues and studying molecular evolution.The complete mitochondrial genome of Sporobolus alterniflorus was a circular molecule of 566,328 bp in length and encoded 64 genes, including 35 protein-coding genes, 24 tRNA genes, and 5 rRNA genes. The most common initiated codon was ATG and the most common termination codon was CAT. The overall A + T content was 55.96%. The phylogenomic analysis revealed that Sporobolus alterniflorus have a closest phylogenetic relationship with Sorghum bicolor.Sweet chestnut (Castanea sativa) is an endemic species of genus Castanea in Europe, which is widespread in the southern part of continental Europe. The complete genome sequence of chloroplast was determined through Illumina NovaSeq platform. Totally the genome of chloroplast was 160,938 bp in length, GC rich (36.8%), comprising a pair of 25,726 bp inverted repeat sequences, separated by a 90,519 bp large and 18,967 bp small single-copy regions. There were 129 genes, including 37 transfer RNA genes, 8 ribosomal RNA genes, and 84 protein-coding genes. The phylogenetic tree analysis showed that C. sativa exhibited the closest relationship with Castanea henryi.In order to analyze the genetic diversity and genetic differentiation of Gymnocypris chilianensis, D-loop region of the mitochondrial DNA was sequenced in 50 individuals of G. chilianensis obtained from 2 geographic locations (Heihe River and Shule River) and 25 individuals of G. przewalskii (Qinghai Lake). Twenty-five homologous sequences of another G. eckloni (Yellow River) downloaded from GenBank were analyzed together. The sequences were analyzed by using the MEGA (version 7.0) and DnaSP (version 6.0) software. The results revealed that 82 haplotypes were detected among 100 individuals. The haplotype diversity (Hd) and nucleotide diversity (Pi) of G. chilianensis of the Shule River were 0.963 ± 0.029 and 0.00414 ± 0.00069, which were lower than those of 3 other populations. The genetic distance of G. chilianensis in both Heihe River and Shule River was 0.0013. The genetic distances between the 2 G. chilianensis populations and the G. eckloni were 0.0148 and 0.0141, respectively. Population differentiation values (Fst) and gene flow (Nm) showed that 4 population had occurred obvious genetic differentiation (Fst 0.20811 ∼ 0.98863. p less then 0.01; Nm less then 1). Compared with G. przewalskii and G. eckloni, the differentiation degree was more significant between Heihe River G. chilianensis and Shule River G. chilianensis (Fst = 0.98863, p less then 0.01; Nm = 0.00287). Maximum Likelihood (ML) phylogenetic tree showed that G. chilianensis had further genetic distance with G. eckloni and G. przewalskii. In conclution, G. chilianensis (HH&SL) had lower genetic diversity and further genetic distance than G. przewalskii (QH) and G. eckloni (YL). We suggest strengthen the protection of genetic resources of G. chilianensis.Chaetodontidae species feeding observations showed that they mostly fed on different coral species. Among them, Chaetodon speculum (Cuvier, 1831) is one of most important genera of Chaetodontidae, C. baronessa and C. bennetti appeared to ingest annelid worms during the course of coral feeding, whereas gut contents of C. punctatofasciatus and C. speculum were dominated by crustaceans. However, the systemically classification and taxonomic studies have so far been limited. Lificiguat price In this study, we report the complete mitochondrial genome sequence of C. speculum. The mitogenome has 16,537 base pairs (54.4% A + T content) and made up of total of 37 genes (13 protein-coding, 22 transfer RNAs and 2 ribosomal RNAs), and a putative control region. This study will provide useful genetic information for future phylogenetic and taxonomic classification of Chaetodontidae.The complete mitochondrial genome of the Haifa grouper, Hyporthodus haifensis (Ben-Tuvia, 1953), has been obtained, through Illumina next-generation sequencing, and annotated. This mitogenome was found to be 16,525 bp long and to contain 37 genes, a control region, and the L-strand replication origin. The overall base composition of the complete mitogenome for this species was found to be 28.55% A, 28.07% C, 16.32% G, and 27.06% T. This study also looked into the mitogenome phylogenetic relationships of H. haifensis within the tribe Epinephelini and adds to the genetic resources currently available for the species.
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