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<p>In this study, we sequenced the complete mitochondrial genome of <i>Theileria velifera</i> and compared it with other Apicomplexan parasites. The mitochondrial genome of <i>T. velifera</i> is a linear monomer molecule spanning 6,125&#xa0;bp, and it encodes 3 protein-coding genes (PCGs): <i>cox1</i>, <i>cob</i>, and <i>cox3</i>. Besides, it contains 5 large subunit (LSU) rRNA gene fragments and terminal inverted repeats (TIR) at both ends. Moreover, the mitochondrial genomes of most Apicomplexan parasites in this study are typically around 6,000&#xa0;bp in length and are linear in structure, featuring three PCGs. The start codons observed in <i>Thaleria</i> spp. and <i>Babesia</i> spp. parasites predominantly include ATN, GTN, and TTN, while the end codons are mainly TAA, TAG, and TGA. Phylogenetic analysis showed that <i>T. velifera</i> was closely related to <i>T. annulata</i>, <i>T. parva</i>, <i>T. taurotragi</i> and <i>T. lestoquardi</i>. The complete mitochondrial genome sequence of <i>T. velifera</i> was examined and compared to other Apicomplexan parasites in this study, offering fresh perspectives on the evolution and phylogenetic connections among these parasites.</p>

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Insights into the mitochondrial genome structure and phylogenetic placement of Theileria velifera in comparison to other apicomplexan parasites

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月27日

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  • Xing Yang,
  • Shaobo Tang,
  • Chaobo Du,
  • Yuqing Chen,
  • Zhi Luo,
  • Miao Li,
  • Shuang Liu,
  • Mingna Duan,
  • Dandan Jiang,
  • Yujuan Shen,
  • Quanfu Zhang,
  • Chunhong Du

摘要

In this study, we sequenced the complete mitochondrial genome of Theileria velifera and compared it with other Apicomplexan parasites. The mitochondrial genome of T. velifera is a linear monomer molecule spanning 6,125 bp, and it encodes 3 protein-coding genes (PCGs): cox1, cob, and cox3. Besides, it contains 5 large subunit (LSU) rRNA gene fragments and terminal inverted repeats (TIR) at both ends. Moreover, the mitochondrial genomes of most Apicomplexan parasites in this study are typically around 6,000 bp in length and are linear in structure, featuring three PCGs. The start codons observed in Thaleria spp. and Babesia spp. parasites predominantly include ATN, GTN, and TTN, while the end codons are mainly TAA, TAG, and TGA. Phylogenetic analysis showed that T. velifera was closely related to T. annulata, T. parva, T. taurotragi and T. lestoquardi. The complete mitochondrial genome sequence of T. velifera was examined and compared to other Apicomplexan parasites in this study, offering fresh perspectives on the evolution and phylogenetic connections among these parasites.