A new dracunculus species (Nematoda: Dracunculoidea) in neotropical otters (Lontra longicaudis) from Argentina: morphological and molecular characterization

A new species of Dracunculus is described in wild neotropical otters, Lontra longicaudis, occurring in Corrientes, Argentina, based on morphological and molecular characteristics. Worms were located in the subcutaneous tissue from two of five investigated otters. Dracunculus jaguape n. sp. is differ...

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Autores principales: Natalini, María Belén, Notarnicola, Juliana, Monje, Lucas Daniel, Vallejos, Adriana Belén, Gavier, Francisco Sanchez, Kowalewski, Martín Miguel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10689777/
https://www.ncbi.nlm.nih.gov/pubmed/38045874
http://dx.doi.org/10.1016/j.ijppaw.2023.11.002
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author Natalini, María Belén
Notarnicola, Juliana
Monje, Lucas Daniel
Vallejos, Adriana Belén
Gavier, Francisco Sanchez
Kowalewski, Martín Miguel
author_facet Natalini, María Belén
Notarnicola, Juliana
Monje, Lucas Daniel
Vallejos, Adriana Belén
Gavier, Francisco Sanchez
Kowalewski, Martín Miguel
author_sort Natalini, María Belén
collection PubMed
description A new species of Dracunculus is described in wild neotropical otters, Lontra longicaudis, occurring in Corrientes, Argentina, based on morphological and molecular characteristics. Worms were located in the subcutaneous tissue from two of five investigated otters. Dracunculus jaguape n. sp. is differentiated from the 14 species of Dracunculus described from mammals and reptiles by the prominent dorsal and ventral papillae on the head; deirids posterior to nerve ring; male with long needlelike spicules and presence of gubernaculum; and long first stage larva. Phylogenetic analysis using the 18S rRNA positioned Dracunculus jaguape n. sp. in an anterior position to the rest of Dracunculus sequences available and COI positioned it in a separated clade sister to Dracunculus lutrae sequences. This is the first report on the presence of this nematode in Lontra longicaudis in Argentina.
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spelling pubmed-106897772023-12-02 A new dracunculus species (Nematoda: Dracunculoidea) in neotropical otters (Lontra longicaudis) from Argentina: morphological and molecular characterization Natalini, María Belén Notarnicola, Juliana Monje, Lucas Daniel Vallejos, Adriana Belén Gavier, Francisco Sanchez Kowalewski, Martín Miguel Int J Parasitol Parasites Wildl Article A new species of Dracunculus is described in wild neotropical otters, Lontra longicaudis, occurring in Corrientes, Argentina, based on morphological and molecular characteristics. Worms were located in the subcutaneous tissue from two of five investigated otters. Dracunculus jaguape n. sp. is differentiated from the 14 species of Dracunculus described from mammals and reptiles by the prominent dorsal and ventral papillae on the head; deirids posterior to nerve ring; male with long needlelike spicules and presence of gubernaculum; and long first stage larva. Phylogenetic analysis using the 18S rRNA positioned Dracunculus jaguape n. sp. in an anterior position to the rest of Dracunculus sequences available and COI positioned it in a separated clade sister to Dracunculus lutrae sequences. This is the first report on the presence of this nematode in Lontra longicaudis in Argentina. Elsevier 2023-11-17 /pmc/articles/PMC10689777/ /pubmed/38045874 http://dx.doi.org/10.1016/j.ijppaw.2023.11.002 Text en © 2023 The Authors. Published by Elsevier Ltd on behalf of Australian Society for Parasitology. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Natalini, María Belén
Notarnicola, Juliana
Monje, Lucas Daniel
Vallejos, Adriana Belén
Gavier, Francisco Sanchez
Kowalewski, Martín Miguel
A new dracunculus species (Nematoda: Dracunculoidea) in neotropical otters (Lontra longicaudis) from Argentina: morphological and molecular characterization
title A new dracunculus species (Nematoda: Dracunculoidea) in neotropical otters (Lontra longicaudis) from Argentina: morphological and molecular characterization
title_full A new dracunculus species (Nematoda: Dracunculoidea) in neotropical otters (Lontra longicaudis) from Argentina: morphological and molecular characterization
title_fullStr A new dracunculus species (Nematoda: Dracunculoidea) in neotropical otters (Lontra longicaudis) from Argentina: morphological and molecular characterization
title_full_unstemmed A new dracunculus species (Nematoda: Dracunculoidea) in neotropical otters (Lontra longicaudis) from Argentina: morphological and molecular characterization
title_short A new dracunculus species (Nematoda: Dracunculoidea) in neotropical otters (Lontra longicaudis) from Argentina: morphological and molecular characterization
title_sort new dracunculus species (nematoda: dracunculoidea) in neotropical otters (lontra longicaudis) from argentina: morphological and molecular characterization
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10689777/
https://www.ncbi.nlm.nih.gov/pubmed/38045874
http://dx.doi.org/10.1016/j.ijppaw.2023.11.002
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