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Comparative Study
. 2021 Apr;59(2):139-148.
doi: 10.3347/kjp.2021.59.2.139. Epub 2021 Apr 22.

Mitochondrial Genome of Spirometra theileri Compared with Other Spirometra Species

Barakaeli Abdieli Ndosi  1   2 , Hansol Park  1 , Dongmin Lee  1 , Seongjun Choe  1 , Yeseul Kang  1 , Tilak Chandra Nath  1   3 , Mohammed Mebarek Bia  1 , Chatanun Eamudomkarn  4 , Hyeong-Kyu Jeon  1 , Keeseon S Eom  1
Affiliations
Comparative Study

Mitochondrial Genome of Spirometra theileri Compared with Other Spirometra Species

Barakaeli Abdieli Ndosi et al. Korean J Parasitol. 2021 Apr.

Abstract

This study was carried out to provide information on the taxonomic classification and analysis of mitochondrial genomes of Spirometra theileri. One strobila of S. theileri was collected from the intestine of an African leopard (Panthera pardus) in the Maswa Game Reserve, Tanzania. The complete mtDNA sequence of S. theileri was 13,685 bp encoding 36 genes including 12 protein genes, 22 tRNAs and 2 rRNAs with absence of atp8. Divergences of 12 protein-coding genes were as follow: 14.9% between S. theileri and S. erinaceieuropaei, 14.7% between S. theileri and S. decipiens, and 14.5% between S. theileri with S. ranarum. Divergences of 12 proteins of S. theileri and S. erinaceieuropaei ranged from 2.3% in cox1 to 15.7% in nad5, while S. theileri varied from S. decipiens and S. ranarum by 1.3% in cox1 to 15.7% in nad3. Phylogenetic relationship of S. theileri with eucestodes inferred using the maximum likelihood and Bayesian inferences exhibited identical tree topologies. A clade composed of S. decipiens and S. ranarum formed a sister species to S. erinaceieuropaei, and S. theileri formed a sister species to all species in this clade. Within the diphyllobothridean clade, Dibothriocephalus, Diphyllobothrium and Spirometra formed a monophyletic group, and sister genera were well supported.

Keywords: Panthera pardus; Spirometra theileri; Tanzania; genome; mitochondria.

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Conflict of interest statement

We have no conflict of interest related to this work.

Figures

Fig. 1
Fig. 1
Schematic representation of the mitochondrial genome of Spirometra theileri.
Fig. 2
Fig. 2
Inferred secondary structures of 22 mitochondrial tRNA from Spirometra theileri. Differences among the secondary tRNA structures of S. theileri in tRNAser(AGN) (S1) structure with an unpaired Amino-acyl arm and tRNAtyr(TUC) structure with 7 bp paired DHU arm found in S. theileri.
Fig. 3
Fig. 3
Phylogenetic relationship among eucestode species based on inferred nucleotide sequence data selected from 12 mitochondrial protein-coding gene loci for 22 platyhelminthes. The numbers above the branches represent bootstrap values for Bayesian inference and maximum likelihood.
See this image and copyright information in PMC

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