Solodovnik D.A.1♦, Atopkin D.M.1,2♦*, Semenchenko A.A.1, Urabe M.3, Sokolov S.G.4 2025. The complete mitochondrial genome of Aspidogaster ijimai (Platyhelminthes: Trematoda: Aspidogastrea): gene content and phylogenetic inference // Invert. Zool. Vol.22. No.3: 411–427 [in English].
1 Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the RAS, Vladivostok 690051 Russia.
2 Department of Cell Biology and Genetics, Institute of the World Ocean, Far Eastern Federal University, Vladivostok, Russia.
3 Department of Ecosystem Studies, School of Environmental Science, University of Shiga Prefecture, Hikone, Japan.
4 A.N. Severtsov Institute of Ecology and Evolution, 33 Leninskij prosp., Moscow, 119071 Russia.
♦ These authors contributed equally to this study
* Corresponding author
Daria Solodovnik september7th@yandex.ru ORCID https://orcid.org/0000-0002-3135-5686
Dmitry Atopkin atop82@gmail.com ORCID https://orcid.org/0000-0001-8417-3424
Alexander Semenchenko semenchenko_alexander@mail.ru ORCID https://orcid.org/0000-0001-7207-9529
Misako Urabe urabe@ses.usp.ac.jp ORCID https://orcid.org/0000-0003-3546-4035
Sergey Sokolov sokolovsg@mail.ru ORCID https://orcid.org/0000-0002-4822-966X
doi: 10.15298/invertzool.22.3.03
ABSTRACT: Aspidogastrea is a species-poor group of the Neodermata, but it is important for understanding the evolution of the class Trematoda. Using the high-throughput sequencing method on the Ion S5 platform, data on the primary nucleotide sequence of the complete mitochondrial genome of a representative of Aspidogastrea (Aspidogaster ijimai) from the common carp Cyprinus carpio s. lato, which was obtained from a canal near Lake Biwa, Japan. The length of the mitochondrial genome of A. ijimai was 13432 bp; its sequence included 12 protein-coding genes, 22 tRNA genes, two rRNA genes, and a non-coding region (NCR). The location of protein-coding genes did not differ from that of the rest of Digenea, with the exception of some Schistosomatidae. The relative location of the tRNA genes for A. ijimai were coincides with those of 48% of the digenean species available in the International Gene Bank. A unique feature reflected in the mt-genome structure was the specific structure of the tRNA-Ser1 and tRNA-Trp genes. The phylogenetic relationships of A. ijimai with different members of the Neodermata, reconstructed from pooled amino acid sequences and pooled rRNA and tRNA genes, showed that Aspidogastrea is the sister group to Digenea, confirming results of previous studies.
KEY WORDS: Aspidogaster, mitochondrial DNA, Digenea, Neodermata, phylogenetic relationships.
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