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<p><i>Rhabdophis swinhonis</i> (GÜNTHER, 1868) remains understudied due to its narrow distribution and scarcity. This study aimed to sequence and characterize its mitochondrial genome to provide essential genetic data for understanding its evolution and conservation. We sequenced the complete mitochondrial genome of <i>R. swinhonis</i>. The mitogenome is 18,525&#xa0;bp long and contains 37 typical mitochondrial genes and 2 control regions. Most genes are encoded on the H-chain, including 12 protein-coding genes (excluding ND6 on the L-chain). Phylogenetic analysis robustly places <i>R. swinhonis</i> within <i>Rhabdophis</i>, forming a sister clade to <i>R. chiwen</i> with maximal support (BI/ML = 1.0/100%). This study reports the first complete mitochondrial genome of <i>R. swinhonis</i>, confirming its phylogenetic position consistent with prior genus-level studies. The findings provide fundamental genetic resources crucial for future research on the species’ evolutionary history and conservation strategies.</p> Graphical Abstract <p></p>

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Mitogenome of Rhabdophis swinhonis (Squamata: Colubridae): Its Comparative Description and Phylogenetic Position Within Colubridae

  • 期刊论文

  • 发表日期：

    2026年3月30日

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  • Ya Su,
  • Jingxue Luo,
  • Fei Wu,
  • Huina Song,
  • Ji Wang,
  • Guangxiang Zhu

摘要

Rhabdophis swinhonis (GÜNTHER, 1868) remains understudied due to its narrow distribution and scarcity. This study aimed to sequence and characterize its mitochondrial genome to provide essential genetic data for understanding its evolution and conservation. We sequenced the complete mitochondrial genome of R. swinhonis. The mitogenome is 18,525 bp long and contains 37 typical mitochondrial genes and 2 control regions. Most genes are encoded on the H-chain, including 12 protein-coding genes (excluding ND6 on the L-chain). Phylogenetic analysis robustly places R. swinhonis within Rhabdophis, forming a sister clade to R. chiwen with maximal support (BI/ML = 1.0/100%). This study reports the first complete mitochondrial genome of R. swinhonis, confirming its phylogenetic position consistent with prior genus-level studies. The findings provide fundamental genetic resources crucial for future research on the species’ evolutionary history and conservation strategies.

Graphical Abstract