Mitochondrial DNA. Part B, Resources最新文献

Blumea axillaris is a medicinal herbaceous plant belonging to the genus Blumea in the Asteraceae family. This study reports the first complete chloroplast genome of B. axillaris, assembled as 151,043 bp with a typical quadripartite structure. It contains 134 genes (90 protein-coding, 36 tRNA, and 8 rRNA). A double inversion was detected relative to Barnadesia caryophylla. Phylogenetic analysis confirmed the sister relationship between B. axillaris and B. oxyodonta. These results provide valuable chloroplast resources for phylogenetic studies and resource development of B. axillaris.

Jasminum lanceolaria Roxb. (1996) is an important medicinal herb with diverse applications. It is native to China and belongs to the family Oleaceae. In this study, we reported the complete chloroplast genome sequence of J. lanceolaria. The assembled genome has a total length of 163,015 bp, with an overall GC content of 38.87%, and contained 133 genes, including 87 protein-coding genes, 38 tRNA genes, and eight rRNA genes. Phylogenetic analysis revealed that J. lanceolaria was closely related to Jasminum polyanthum. These findings provided valuable genomic resources and a reference for the taxonomic identification of J. lanceolaria.

Viburnum mongolicum (Pall.) Rehd. 1908 is a medicinal and ornamental plant of the Adoxaceae family, yet its chloroplast genome had not been previously characterized. The V. mongolicum chloroplast genome was sequenced on an Illumina platform, followed by assembly, annotation and comparative analysis through bioinformatic tools. The genome length is 158,347 bp, after annotation, a total of 131 genes were identified. Comparative analyses reveal high similarity to other Adoxaceae species, with notable variations in gene content and boundary regions. Phylogenetic analysis demonstrate that V. mongolicum is closely related to V. carlesii and V. lentago. The addition of the V. mongolicum chloroplast genome to the genomic resources of Viburnum enhances our understanding of its phylogeny, supporting future work in species identification and the conservation of genetic resources.

Tetrapanax papyrifer (Hook.) K. Koch is an important medicinal plant in Chinese Yao medicine. In this study, the complete chloroplast genome was sequenced using high-throughput sequencing technology. Its complete chloroplast genome spans 156,165 bp in total length, comprising a large single-copy region of 86,237 bp and a small single-copy region of 17,956 bp, separated by a pair of inverted repeat regions (25,986 bp each). Phylogenetic analysis based on chloroplast genomes revealed that the genomic structure of T. papyrifer shows similarities with species from the genus Heptapleurum in the Araliaceae family. The presented chloroplast genome will facilitate further phylogenetic analyses and inform conservation strategies for this species.

We report the first complete mitochondrial genome of the palecheek parrotfish, Chlorurus japanensis. The 16,694 bp circular genome contains the standard vertebrate gene complement: 13 protein-coding genes, 22 transfer RNAs, two ribosomal RNAs, and one non-coding control region (D-loop). As is typical, most genes are located on the H-strand, with only the nd6 gene and eight tRNAs encoded on the L-strand. A tRNA gene rearrangement pattern conserved among parrotfishes was also identified. Phylogenetic analysis placed C. japanensis within the tribe Scarini, where it formed a well-supported clade with other Chlorurus species. This phylogenetic relationship reflects their shared ecological specialization in coral reef environments.

Chrysanthemum morifolium var. 'Jinsihuang', an ornamental chrysanthemum with notable medicinal and edible value, had its complete chloroplast (cp) genome sequenced, assembled, and annotated in this study. The cp genome is 151,060 bp long, exhibiting a typical quadripartite structure: an 82,858 bp large single-copy (LSC) region, an 18,294 bp small single-copy (SSC) region, and two inverted repeat (IR) regions (24,954 bp each). Phylogenetic analysis revealed that it is most closely related to Chrysanthemum × morifolium. This study provides valuable genomic resources for understanding its phylogenetic relationships and genetic diversity, contributing to future research on its evolution and conservation.

Acrossocheilus fasciatus is a stream-dwelling Barbinae fish with attractive striped appearance and high commercial values. In this study, we assembled the mitogenomes of 128 A. fasciatus individuals from eight different geographic populations and analyzed their nucleotide variations and genetic differences. A total of 904 non-redundant SNPs and four InDel sites were identified in these geographic populations compared with the reference mitogenome. The results of phylogenetic analysis and divergence time estimation revealed that QingYiJiang River (QYJ) population exhibits significant genetic differences and diverged about 1.36 Mya from other geographic populations, suggesting that QYJ population may have evolved into a distinct species.

This study is part of an ongoing systematic research on the Korean Vespidae fauna. The complete mitochondrial genome of the social wasp D. kuami collected in South Korea was sequenced and annotated. The circular genome was 15,671 bp long and comprised 13 protein-coding genes, 22 transfer RNA genes, and two ribosomal RNA genes. Phylogenetic analysis revealed that D. kuami formed a monophyletic clade with other Dolichovespula species, indicating its distinctiveness despite being the sister group to D. flora. These findings confirm the taxonomic status of D. kuami and provide valuable genomic data for future phylogenetic studies of the Vespidae family.

Parasenecio lanpingensis X. F. Jiang, 2025, is a newly described perennial herb found in China. The plastome of P. lanpingensis is 151,241 base pairs (bp) in size with GC content in. It consists of an 83,363 bplarge single-copy region (LSC), a 18,182 bp small single-copy region (SSC), and a 26848 bp inverted repeat (IR) sequence. The plastome contains 122 genes, including 87 protein-coding genes and 35 tRNA genes. A maximum-likelihood (ML) analysis based on 30 Asteraceae species indicates that P. lanpingensisis closely related to Parasenecio latipes. This plastome will be useful for the further understanding in the taxonomy and evolutionary history of Parasenecio.

Haemadipsa hainana Song, Zhang and Tan 1977, a blood-feeding terrestrial leech, serves as an ecological indicator of habitat quality and potential mammal abundance. Currently, the molecular phylogenetic status of this species remains unclear. In this study, we presented the complete mitochondrial genome of H. hainana for the first time. The assembled mitochondrial genome of H. hainana is 15,800bp in length, comprising 13 protein-coding genes (PCGs), 22 tRNA genes, two rRNA genes and a control region. The nucleotide base content of H. hainana mitogenome was 34.7% A, 42.6% T, 10.7% C, and 12.0% G, indicating a notable AT base bias. Phylogenetic analysis revealed that species of Haemadipsa clustered into one clade, and H. hainana was outside the subclade composed of H. yanyuanensis and H. crenata. These findings will serve as a molecular resource for species identification of H. hainana and contribute valuable information for various genetic, evolutionary, and molecular ecological studies on members of the Haemadipsidae family.