Abstract
Background: Luciocyprinus langsoni is a species belonging to the Cyprinidae family. The objective of this study is to gain a comprehensive understanding of its evolutionary history and genetic characteristics. Methods: The complete mitochondrial genome of L. langsoni was determined using overlapping PCR. A phylogenetic analysis was conducted based on 13 protein-coding genes from 48 species. A population genetic diversity analysis using the COI gene and a selection analysis of 13 protein-coding genes were also performed. Results: The mitogenome is 16,586 base pairs long and consists of 13 protein-coding genes, two ribosomal RNAs, 22 transfer RNAs, and two control regions. It has a high adenine-thymine (A + T) content. The phylogenetic analysis confirms the placement of L. langsoni within the subfamily Cyprininae. The population genetic diversity analysis reveals low variability in the Hechi Longjiang population. The selection analysis shows that all 13 protein-coding genes have evolved under purifying selection with Ka/Ks ratios below 1. Conclusions: These results enhance our understanding of L. langsoni’s evolutionary history and lay a genetic foundation for future studies in population genetics and phylogenetics.
Published Version
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