Unveiling the evolutionary pathways of Ochoterenella: a new species discovery and its phylogenetic implications

Unveiling the evolutionary pathways of Ochoterenella: a new species discovery and its phylogenetic implications

Ochoterenella is a large group of filarial parasites of anurans distributed throughout Central and South America. In the present study, we describe a new species of Ochoterenella parasitizing 2 frogs, Boana geographica and Boana multifasciata, from different localities in the Brazilian Amazon. The m...

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Bibliographic Details
Main Authors: Gabriel Lima Rebêlo, Jorge Kevin Silva Neves, Fred Gabriel Haick, Ronald Ferreira Jesus, Karina Varella, Luiz Felipe Ferreira Trindade, Leticia de Aguiar da Costa, Fabrícia de Jesus Paiva da Fonseca Sizo, Arnaldo Maldonado Júnior, Carlos Eduardo Costa-Campos, Francisco Tiago Vasconcelos Melo
Format: Article
Language:English
Published: Cambridge University Press
Series:Parasitology
Subjects:
anuran
molecular
nematodes
Ochoterenella
Onchocercidae
Online Access:https://www.cambridge.org/core/product/identifier/S0031182025100462/type/journal_article
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Summary:Ochoterenella is a large group of filarial parasites of anurans distributed throughout Central and South America. In the present study, we describe a new species of Ochoterenella parasitizing 2 frogs, Boana geographica and Boana multifasciata, from different localities in the Brazilian Amazon. The main morphological traits that differ Ochoterenella casiraghii n. sp. from its congeners are the smaller body size, a shorter cephalic plate, smaller parastomal structures, and the small, short and rounded cuticular bosses on the body of both sexes. The females have a shorter ovejector, and the number of caudal papillae distinguishes males. Pairwise sequence comparisons of the new species reveal a high level of divergence from Ochoterenella spp. Our phylogenetic analyses, based on cox1 and concatenated partial mitochondrial genes, support the monophyly of all subfamilies and genera examined herein. The new species represents the 17th in the Ochoterenella genus and a new parasite record for both anuran species. We provide the first ultrastructural description of the species in the genus and establish the phylogenetic relationships of the new species among parasites of amphibians and reptiles from the Onchocercidae.
ISSN:0031-1820
1469-8161

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