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Identification of Lepidapedon oregonense as the current world’s deepest trematode

Published online by Cambridge University Press:  09 May 2024

T. Waki Open the ORCID record for T. Waki [Opens in a new window] ,
T. Kumagai  and
Y. Nishino
T. Waki*
Affiliation:
Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
T. Kumagai
Affiliation:
Department of Parasitology and Tropical Medicine, Tokyo Medical & Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan
Y. Nishino
Affiliation:
Japan Game Fish Association, 2-22-8, Hatchobori, Chuo-ku, Tokyo, Japan
*
Corresponding author: T. Waki; Email: tsukasa.waki@sci.toho-u.ac.jp
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Abstract

The deepest recorded depth for trematodes currently stands at approximately 6200 m. This depth record was achieved solely through sequence datasets of Lepidapedon sp. obtained from a gastropod. Given that trematodes of this genus typically use fish as definitive hosts, the origin of the trematode sequence was thought to be larval stages. However, the specific species remained unclear owing to the absence of reported adult-stage sequences. In the present study, we definitively identified the deepest trematode as Lepidapedon oregonense by comparing 28S ribosomal DNA sequences from adult worms from the macrourid fish Coelorinchus gilberti with data from the gastropod in the previous study.

Keywords

Coelorinchus gilbertideep seaDNA barcodingSagami Baytrematode
Type
Short Communication
Information
Journal of Helminthology , Volume 98 , 2024 , e38
Copyright
© The Author(s), 2024. Published by Cambridge University Press

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References

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