Mitochondrial DNA. Part B, Resources最新文献

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.

In this study, the taxonomic position of Acheilognathus striatus was clarified through mitogenome analysis. The circular mitogenome is 16,692 bp long and comprises 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, and one non-coding D-loop region. The mitogenome exhibits AT skewness and anti-G bias. Phylogenetic trees were constructed using 22 Acheilognathinae species, with Gobioninae and Leuciscinae used as outgroups. The phylogenetic tree revealed that A. striatus formed a sister group with R. shitaiensis. This study contributes to a better understanding of the mitogenome characteristics and evolutionary relationships among Acheilognathinae species.

Xantolis weimingii is a species recently described in 2024. In this study, we reported the complete chloroplast (cp) genome of X. weimingii, representing the first assembly of the genome of a Xantolis species. The chloroplast genome of X. weimingii was 158,458 bp in size, comprising a large single-copy (LSC) region of 87,778 bp, a small single-copy (SSC) region of 18,516 bp, and two inverted repeat (IR) regions of 26,082 bp each. A total of 114 distinct genes were annotated, including 75 of which are protein-coding genes, 30 tRNA genes, 4 rRNA genes, and five open reading frames. The Maximum Likelihood (ML) phylogenetic analysis showed that X. weimingii was sister to other members of the subfamily Chrysophylloideae with strong support.

Heterojapygidae is a relict and poorly studied family of Diplura that holds significant importance for understanding dipluran evolutionary history. It has the fewest described species among the 10 dipluran families. This study presents the complete mitochondrial genome of Heterojapyx souliei Bouvier, 1905, the largest dipluran species known to date, from the Tibetan Plateau. This represents the first report of a complete mitochondrial genome from Heterojapygidae. The circular mitochondrial genome is 15,146 bp in length and encodes the 37 typical mitochondrial genes, including 13 protein-coding genes (PCGs), 22 tRNA genes, and 2 rRNA genes, arranged in the same order as in other diplurans. The base composition of the majority strand is 35.26% for A, 28.06% for C, 15.76% for G, and 20.92% for T. Phylogenetic trees inferred from 13 PCGs using the maximum-likelihood (ML) methods show that Heterojapygidae is a sister to Japygidae + Evalljapygidae, suggesting that the divergence of Heterojapygidae occurred later than Parajapygidae, but earlier than Japygidae and Evalljapygidae. Our study fills a critical gap and provides new insights into the phylogeny of Diplura.

Aesculus pavia L., a member of the genus Aesculus in the family Sapindaceae, holds significant value as both a medicinal and ornamental plant. In this study, we assembled and annotated the complete chloroplast genome of A. pavia and conducted the phylogenetic analysis among the genus Aesculus. The complete chloroplast genome of A. pavia is 156,394 bp in length, with a GC content of 37.90%. It exhibits a typical quadripartite structure, consisting of a large single-copy (LSC) region (85,927 bp), a small single-copy (SSC) region (18,751 bp), and a pair of inverted repeats (IRs) regions (25,858 bp). A total of 133 genes were annotated, including 88 protein-coding genes (PCG), 37 tRNA genes, and 8 rRNA genes. Phylogenetic analyses revealed that A. pavia is clustered with A. turbinata and A. hippocastanum, suggesting a close relationship between A. pavia and the two species. This study provides a new plastome sequence for evolutionary and phylogenetic studies of the genus Aesculus.

In this study, the complete mitochondrial genome of Leucoptera malifoliella (Costa, 1836) (Lepidoptera: Lyonetiidae) was sequenced and annotated. The genome is 15,214 bp in size, comprises 37 typical genes and a control region, and shows a positive AT skew. The gene content and order are similar to those of other lepidopterans. Phylogenetic analysis confirmed that families within Yponomeutoidea are monophyletic. The relationships among families are inferred as (Praydidae + Attevidae) + (Lyonetiidae + (Scythropiidae + Plutellidae)). This research improves our understanding of the relationships among major Yponomeutoidea lineages.