Spirocerca lupi in the stomach of two Andean foxes (Lycalopex culpaeus) from Chile

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dc.contributor.authorDi Cataldo, Sophia
dc.contributor.authorCevidanes, Aitor
dc.contributor.authorSepúlveda-García, Paulina
dc.contributor.authorAlvarado-Rybak, Mario
dc.contributor.authorLia, Riccardo Paolo
dc.contributor.authorOtranto, Domenico
dc.contributor.authorTerio, Karen
dc.contributor.authorMüller, Ananda
dc.contributor.authorMillán, Javier
dc.date.accessioned2024-11-04T14:06:58Z
dc.date.available2024-11-04T14:06:58Z
dc.date.issued2023-06
dc.descriptionIndexación: Scopus
dc.description.abstractThe genus Spirocerca includes nematodes that parasitize the stomach and the oesophagus of carnivores, chiefly canids. Herein, we provide new data about the morphological, histopathological, and molecular characterization of Spirocerca sp. in Andean foxes (Lycalopex culpaeus) in Chile. Intact immature worms, identified as Spirocerca sp., were recovered in the lumen of the stomach from two foxes. Histologically, worms morphologically consistent with spirurid nematodes were present within the wall of the stomach and surrounded by nodular areas of inflammation with central necrotic debris. Molecular analysis of the cox1 gene yielded 19 sequences and 5 nucleotide sequence types with 99.95 to 99.98% similarity, being shared between both foxes. Nucleotide similarity ranged from 93.1 (with genotype 2 of S. lupi and S. vulpis) to 95.8% (with genotype 1 of S. lupi), a higher similarity than noted from sequences of S. lupi from an Andean fox from Peru (91.0 to 93.3%). However, the Poisson Tree Processes for species delineation did not support the existence of a new species Spirocerca. Phylogenetic and nucleotide analyses suggest that these specimens belong to a new variant or genotype of S. lupi or to a cryptic species. Whether the presence of the worms in the stomach has to do with genotypic differences in parasites or host or some combination is uncertain. Spirocerca lupi has never been found in Chilean dogs and must be investigated. © 2023, The Author(s).
dc.description.urihttps://link-springer-com.recursosbiblioteca.unab.cl/article/10.1007/s00436-023-07825-3
dc.identifier.citationParasitology Research. Volume 122, Issue 6, Pages 1261 - 1269. June 2023
dc.identifier.doi10.1007/s00436-023-07825-3
dc.identifier.issn0932-0113
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/61685
dc.language.isoen
dc.publisherSpringer Science and Business Media Deutschland GmbH
dc.rights.licenseCC BY 4.0 Attribution 4.0 International Deed
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCulpeo Fox
dc.subjectNematoda
dc.subjectPseudalopex Culpaeus
dc.subjectSouth America
dc.subjectSpirurida
dc.titleSpirocerca lupi in the stomach of two Andean foxes (Lycalopex culpaeus) from Chile
dc.typeArtículo
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