Towards disentangling the classification of freshwater fish trypanosomes

0580622 - BC 2024 RIV GB eng J - Journal Article
Zhang, P. - Liu, J. - Yin, X. - Zhou, J. - Lukeš, Julius - Lun, Z.R. - Lai, D.
Towards disentangling the classification of freshwater fish trypanosomes.
Marine Life Science & Technology. Roč. 5, OCT (2023), s. 551-563. ISSN 2096-6490. E-ISSN 2662-1746
R&D Projects: GA ČR(CZ) GA22-01026S
Institutional support: RVO:60077344
Keywords : marine fish * life-cycle * sp-n * goldfish * danilewskyi * china * kinetoplastida * identification * redescription * murmanensis * Freshwater fish trypanosomes * 18S rRNA * Morphology * Phylogeny
OECD category: Biochemistry and molecular biology
Impact factor: 5.700, year: 2022
Method of publishing: Open access
https://link.springer.com/article/10.1007/s42995-023-00191-0

Currently, new species of freshwater fish trypanosomes, which are economically important parasites, are being described based on subjectively selected features, i.e., their cell morphology and the host species. We have performed detailed phylogenetic and haplotype diversity analyses of all 18S rRNA genes available for freshwater fish trypanosomes, including the newly obtained sequences of Trypanosoma carassii and Trypanosoma danilewskyi. Based on a sequence similarity of 99.5%, we divide these trypanosomes into 15 operational taxonomic units, and propose three nominal scenarios for distinguishing T. carassii and other aquatic trypanosomes. We find evidences for the existence of a low number of freshwater fish trypanosomes, with T. carassii having the widest geographic and host ranges. Our analyses support the existence of an umbrella complex composed of T. carassii and two sister species.
Permanent Link: https://hdl.handle.net/11104/0352399