Paronatrema davidbowiei n. sp. (Trematoda: Syncoeliidae), a new parasite of the pelagic thresher (Alopias pelagicus) and its phylogenetic relationships within the suborder Hemiurata Skrjabin & Guschanskaja, 1954.

Autor: Santoro M; Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Villa Comunale 1, 80121 Naples, Italy. Electronic address: mario.santoro@szn.it., Occhibove F; Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Villa Comunale 1, 80121 Naples, Italy., López-Verdejo A; Marine Zoology Unit, Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Spain., Rojas A; Center for Research in Tropical Diseases (CIET), Faculty of Microbiology, University of Costa Rica, 11501-2060 San Pedro de Montes de Oca, San José, Costa Rica., Solano-Barquero A; Center for Research in Tropical Diseases (CIET), Faculty of Microbiology, University of Costa Rica, 11501-2060 San Pedro de Montes de Oca, San José, Costa Rica.
Jazyk: angličtina
Zdroj: Parasitology international [Parasitol Int] 2024 Dec; Vol. 103, pp. 102953. Date of Electronic Publication: 2024 Aug 22.
DOI: 10.1016/j.parint.2024.102953
Abstrakt: A new species of hemiurid trematode found on the gills and in the aorta of the pelagic thresher Alopias pelagicus from the eastern Pacific, off Costa Rica, is described based on an integrative taxonomic approach that includes the use of light and scanning electron microscopy, and 28S rDNA sequencing. Phylogenetic analysis was also performed to explore, for the first time, the relationships of a member of the subfamily Otiotrematinae within the suborder Hemiurata. Paronatrema davidbowiei n. sp. can be distinguished from the congeners by having tegumental spines on the dorsal surface of the forebody, papillae on the oral sucker, and different morphology or number of testicular follicles. BLAST analysis revealed that sequences of Paronatrema davidbowiei n. sp. had the highest degree of similarity with Hirudinella spp. (Hirudinellidae). Results from Maximum Likelihood and Bayesian phylogenetic analyses, returning trees with the exact same topology and strong branch support, distinguished between the two superfamilies included in the suborder Hemiurata: Azygioidea and Hemiuroidea. Our analysis placed the new species in a clade with Copiatestes filiferus, the only existing sequence of the family Syncoeliidae.
Competing Interests: Declaration of competing interest The authors declare that there is no conflict of interest.
(Copyright © 2024. Published by Elsevier B.V.)
Databáze: MEDLINE
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