Mitochondrial DNA. Part B, Resources最新文献

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.

Schisandra henryi C.B. Clarke belongs to the Schisandraceae family and is known to have important medicinal benefits. The complete chloroplast genome of S. henryi was 146,882 bp in length, with the overall GC content of 39.45%. 124 genes were annotated, which consist of 81 protein coding genes, 35 tRNA genes, and 8 rRNA genes. The phylogenetic tree constructed based on chloroplast genomes indicates that the genus Schisandra is closely related, with S. henryi being most closely related to S. sphenanthera within this group. This study provides further insights into the chloroplast genome database of S. henryi.

The deep-sea penaeoid shrimp Cerataspis monstrosa performs a vertical ontogenetic migration, with its early larval stages are typically found in surface waters, while adults inhabit the deep-sea. In this study, we present the complete mitogenome of C. monstrosa, which is 15,911 bp in length and comprises 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and a control region. Phylogenetic analysis indicates that C. monstrosa has closest genetic relationship with Aristeus virilis and is clustered within the Aristeidae family. The mitogenome of C. monstrosa provides valuable molecular data for further research into the evolution of penaeoid shrimps.

The complete chloroplast genome of Schisandra repanda (Siebold & Zucc.) Radlk., 1886, was assembled and annotated for the first time using NGS data. The genome is 146,620 bp in length and consists of a large single-copy (LSC) region of 95,338 bp, a small single-copy (SSC) region of 18,330 bp, and two inverted-repeat (IR) regions of 16,476 bp each. A total of 125 genes were annotated, including 82 protein-coding genes, 8 rRNA genes, and 35 tRNA genes. These results provide fundamental genomic information for species identification, comparative studies of Schisandra, and climate change response relevant to conservation.

Gazania rigens is a popular ornamental plant. This study deciphers its complete chloroplast genome. The genome is 150,688 bp in length and exhibits a typical circular quadripartite structure with a GC content of 37.54%. It encodes a total of 127 unique genes, including 79 protein-coding genes, 40 tRNA genes, and 8 rRNA genes. Phylogenetic analysis based on this genome elucidates the evolutionary relationships of G. rigens among closely related taxa. This sequence provides a foundational resource for future biotechnological applications in this ornamental species.

Pterospermum heterophyllum Hance (1868), a member of the Malvaceae family, is widely distributed across southwestern and southeastern China and has been traditionally used in folk medicine to treat rheumatoid arthritis and inflammation-related diseases. The circular genome is 162,857 bp long and exhibits a typical quadripartite structure, consisting of an LSC (91,356 bp), SSC (20,567 bp), and two IRs (25,467 bp each). A total of 130 genes were annotated. The multiple sequence alignment revealed that infA gene contained a large 3' deletion truncating the coding sequence. Phylogenetic analysis revealed that P. heterophyllum is closely related to P. kingtungense and P. truncatolobatum.