First Description of Intergenic Sequences in Corydoradinae and Introducing the Complete Mitogenome of Hoplisoma concolor (Siluriformes: Callichthyidae)
Year: 2025
Type: article
Abstract: Background/Objectives: In this study, we report the complete mitochondrial genome sequence of Hoplisoma concolor Weitzman, 1961 (Siluriformes: Callichthyidae), a callichthyid catfish. Methods: DNA sequencing was performed to obtain its complete mitogenome using the HiSeq platform. To assess the phylogenetic relationships, maximum-likelihood and Bayesian inference phylogenetic trees were constructed using two ribosomal RNA (rRNA) genes and all protein-coding sequences (PCGs) concatenated from the H. concolor mitogenome, along with 31 other Siluriformes mitogenomes. Results: The complete mitogenome of H. concolor is 16,579 base pairs in length, with a nucleotide composition of 32.2% A, 26.0% T, 15.3% G, and 26.5% C. It contains 13 PCGs, 22 transfer RNA genes, and 2 rRNA genes. Phylogenetic analysis based on all PCGs and two rRNAs of the complete mitogenome confirms H. concolor as a sister species of H. panda within the subfamily Corydoradinae. In addition, intergenic sequences between atp6 and cox3 of 21 species of Corydoradinae provide further support for their phylogenetic relationship. Conclusions: Given the lack of detailed descriptions regarding the length and nucleotide composition of these intergenic sequences, our study contributes valuable insights into the genetic diversity and evolutionary complexity of Callichthyidae.
Source: Genes
Authors: Seong Duk Do, Jae-Sung Rhee
Institution: Incheon National University
Language: English
Subfield: Molecular Biology
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $3,137
Awards: G2793353616, G3307326188, G944620228
OpenAlex ID: W4407955151