First finding of nematode DNA of the genus Rhabdochona (Spiruromorpha: Thelazioidea: Rhabdochonidae) in the metagenome of the digestive tract of a deep-water species: Godlewski’s sculpin Abyssocottus (Limnocottus) godlewskii

Dzyuba, Elena; Bukin, Yuriy; Khanaev, Igor; Bogdanov, Bakhtiar; Yakhnenko, Alena; Sapozhnikova, Yulia Pavlovna; Denikina, Natalia

doi:10.31951/2658-3518-2024-A-6-1366

First finding of nematode DNA of the genus Rhabdochona (Spiruromorpha: Thelazioidea: Rhabdochonidae) in the metagenome of the digestive tract of a deep-water species: Godlewski’s sculpin Abyssocottus (Limnocottus) godlewskii

Authors

Dzyuba Ye.V. ¹
Bukin Yu.S. ¹
Khanaev I.V. ¹
Bogdanov B.E. ¹
Yakhnenko A.S. ¹
Sapozhnikova Yu.P. ¹
Denikina N.N. ¹

DOI:

https://doi.org/10.31951/2658-3518-2024-A-6-1366

Keywords:

Nematoda, Rhabdochonidae, Abyssocottus (Limnocottus) godlewskii (Dybowski, 1874, cox1 gene, Lake Baikal

Abstract

Nucleotide sequences of the fragment of the cox1 gene in nematodes with the relative DNA representativeness of 2.6% were identified for the first time by the method of high-throughput sequencing in the digestive tract of Godlewski’s sculpin Abyssocottus (Limnocottus) godlewskii. The phylogenetic analysis performed allowed to state that the sequences obtained belong to a representative of the family Rhabdochonidae (Spiruromorpha: Thelazioidea). Representatives of Rhabdochonidae have not been found yet in the parasitic fauna of Lake Baikal sculpins. Possible ways of nematode DNA income into the digestive tract of fish are discussed.