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<p>Species of the Bostrichidae family are well-known pests of agriculture, forest, and quarantine. In this study, we employed next-generation sequencing (NGS) to sequence the complete mitochondrial (mt) genomes of three Bostrichidae species, i.e., <i>Sinoxylon japonicum</i>, <i>S. pygmaeum</i>, and <i>S. flabrarius</i>. Comparative mitochondrial genome analysis revealed that the mitogenomes of these species ranged from 15,543 to 16,009&#xa0;bp, containing 37 genes (13 protein-coding genes, 22 transfer RNAs, and two ribosomal RNAs) and a control region. The gene order and content are consistent with the conserved mitogenomic architecture of Coleoptera. Notably, distinct variations were identified in the start codons of two protein-coding genes (<i>COX1</i> and <i>ND6</i>) and the stop codon of <i>CYTB</i> across the three species. Phylogenetic analyses based on maximum likelihood (ML) and Bayesian inference (BI) methods provide robust support for the monophyly of <i>S. japonicum</i>, <i>S. pygmaeum</i>, and <i>S. flabrarius</i>. Our findings elucidate the genomic characteristics of Bostrichidae and reconstruct the evolutionary relationships within this taxon, offering a foundational reference for future taxonomic and phylogenetic studies in the family.</p>

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Mitogenomes of three Sinoxylon species and phylogenetic analysis of Bostrichoidea (Coleoptera)

  • 期刊论文

  • 发表日期：

    2026年4月1日

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  • Hua-Min Fan,
  • Xiao-Yun Wang,
  • Kai Lin,
  • Qian Lu,
  • Qiu-Hong Tao,
  • Jun Li,
  • Xia-Lin Zheng

摘要

Species of the Bostrichidae family are well-known pests of agriculture, forest, and quarantine. In this study, we employed next-generation sequencing (NGS) to sequence the complete mitochondrial (mt) genomes of three Bostrichidae species, i.e., Sinoxylon japonicum, S. pygmaeum, and S. flabrarius. Comparative mitochondrial genome analysis revealed that the mitogenomes of these species ranged from 15,543 to 16,009 bp, containing 37 genes (13 protein-coding genes, 22 transfer RNAs, and two ribosomal RNAs) and a control region. The gene order and content are consistent with the conserved mitogenomic architecture of Coleoptera. Notably, distinct variations were identified in the start codons of two protein-coding genes (COX1 and ND6) and the stop codon of CYTB across the three species. Phylogenetic analyses based on maximum likelihood (ML) and Bayesian inference (BI) methods provide robust support for the monophyly of S. japonicum, S. pygmaeum, and S. flabrarius. Our findings elucidate the genomic characteristics of Bostrichidae and reconstruct the evolutionary relationships within this taxon, offering a foundational reference for future taxonomic and phylogenetic studies in the family.