Dataset Information

Complete mitochondrial genome and phylogenetic analysis of Schizothorax molesworthi (Cypriniformes: Cyprinidae).

ABSTRACT: Schizothorax molesworthi is an endemic species and distributes in the MoTuo reaches of the Yarlung Zangbo River. It is one of the most important commercial fishes in this area. In the present study, the complete mitochondrial DNA sequence of Schizothorax molesworthi was determined and analyzed. The mitochondrial genome of Schizothorax molesworthi is 16,585 bp in length and consisted of 37genes in the typical vertebrate mitochondrial gene arrangement. Overall base composition of mitochondrial genome of Schizothorax molesworthi was 30.1% A, 26.9% C, 17. 4% G, and 25.6% T, with a high A + T content (55.7%). Phylogenetic analysis showed that Schizothorax molesworthi and Schizothorax plagiostomus clustered together in a clade and formed a sister relationship.

SUBMITTER: Zhang C

PROVIDER: S-EPMC7800196 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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Publications

Complete mitochondrial genome and phylogenetic analysis of Schizothorax molesworthi (Cypriniformes: Cyprinidae).

Zhang Chi C Zhou Chaowei C Zhu Tingbing T Zeng Benhe B Li Baohai B

Mitochondrial DNA. Part B, Resources 20171127 2

Schizothorax molesworthi is an endemic species and distributes in the MoTuo reaches of the Yarlung Zangbo River. It is one of the most important commercial fishes in this area. In the present study, the complete mitochondrial DNA sequence of Schizothorax molesworthi was determined and analyzed. The mitochondrial genome of Schizothorax molesworthi is 16,585 bp in length and consisted of 37genes in the typical vertebrate mitochondrial gene arrangement. Overall base composition ...[more]

PMID: 33474021

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Project description:Schizothorax kozlovi is an endemic and vulnerable fish species found in the upper Yangtze River in China. Over the past few years, the population resources of S. kozlovi have been nearly completely depleted owing to multiple contributing threats. While the complete mitochondrial genomes serve as important molecular markers for phylogenetic and genetic studies, the mitochondrial genome of S. kozlovi has still received little attention. In this study, we analyzed the characterization of the mitochondrial genome of S. kozlovi and investigated the phylogenetic relationships of Schizothorax. The complete mitochondrial genome of S. kozlovi was 16,585 bp in length, which contained thirty-seven genes (thirteen protein-coding genes (PCGs), two ribosomal RNA genes (rRNAs), twenty-two transfer RNA genes (tRNAs)) and two non-coding regions for the origin of light strand (OL) and the control region (CR). There were nine overlapping regions and seventeen intergenic spacers regions in the mitochondrial genome. The genome also showed a bias towards A + T content (55.01%) and had a positive AT-skew (0.08) and a negative GC-skew (-0.20). All the PCGs employed the ATG or GTG as the start codon and TAA, TAG, or single T as the stop codon. Additionally, all of the tRNAs displayed a typical cloverleaf secondary structure, except trnS1 which lacked the D arm. The phylogenetic analysis, based on the maximum likelihood (ML) and Bayesian inference (BI) methods, revealed that the topologies of the phylogenetic tree divided the Schizothorax into four clades and did not support the classification of Schizothorax based on morphology. The phylogenetic status of S. kozlovi was closely related to that of S. chongi. The present study provides valuable genomic information for S. kozlovi and new insights in phylogenetic relationships of Schizothorax. These data could also offer fundamental references and guidelines for the management and conservation of S. kozlovi and other species of Schizothorax.

Dataset Information

Complete mitochondrial genome and phylogenetic analysis of Schizothorax molesworthi (Cypriniformes: Cyprinidae).

Publications

Complete mitochondrial genome and phylogenetic analysis of <i>Schizothorax molesworthi</i> (Cypriniformes: Cyprinidae).

Similar Datasets

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