Journal
MITOCHONDRIAL DNA PART B-RESOURCES
Volume 7, Issue 5, Pages 772-774Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/23802359.2022.2070039
Keywords
Hemiclepsis yangtzenensis; leech; mitochondrial genome; phylogenetics
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Funding
- China Agriculture Research System of MOF and MARA [CARS-46]
- Technical Innovation Project of Hubei Province [2019ABA086]
- Key Laboratory Open Project Fund of Engineering Research Center for Ecology and Agriculture of Wetlands, Ministry of Education [KFT201902]
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This study presents the complete mitochondrial genome sequence of a new leech species Hemiclepsis yangtzenensis collected in central China, with a focus on its gene structure, repetitive sequences, and phylogenetic relationships.
We present the complete mitochondrial genome sequence of a recently described new leech species named Hemiclepsis yangtzenensis Yang & Bolotov 2021 collected in central China. The mitochondrial genome is 14,984 bp in length and consists of 13 protein-coding genes, 2 ribosomal RNA genes, and 22 transfer RNA genes, all of which are encoded on a single strand. It exhibited a strong A + T bias of 72.87%. There is a large non-coding region (614 bp) located between the tRNA-Arg and tRNA-His genes, wherein we identified 40 short dispersed repeats, 13-22 bp long, 8 of which were direct, 20 inverted, and 12 palindromic. Phylogenetic analysis of 20 Hirudinea mitogenome sequences resolved monophyletic Glossiphoniidae, and H. yangtzenensis formed a sister lineage with Glossiphonia concolor.
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