Molecular detection of coccidian Apicomplexa Parasites isolated from wild crab-eating and pampas foxes through novel TaqMan™ probes: a contribution to their molecular epidemiology.
Mol Biol Rep
; 48(6): 5013-5021, 2021 Jun.
Article
em En
| MEDLINE
| ID: mdl-34164751
ABSTRACT
Neospora caninum, Toxoplasma gondii and Hammondia spp. are coccidian parasites similar in morphology. Molecular techniques are necessary to detect parasite DNA isolated from stool samples in wild canids because they were reported as definitive hosts of N. caninum life cycle. The objective of this study was to develop a highly sensitive and accurate molecular method for the identification of coccidian Apicomplexa parasites in crab-eating fox (Cerdocyon thous) and pampas fox (Lycalopex gymnocercus). Tissue samples from road-killed animals (pampas fox = 46, crab-eating fox = 55) and feces (pampas fox = 84, crab-eating fox = 2) were collected, and species were diagnosed through molecular assay. PCR was used for the amplification of a fragment of the coccidian Apicomplexa nss-rRNA gene. Additionally, we developed a novel real-time PCR TaqMan™ probe approach to detect T. gondii- Hammondia spp. and N. caninum. This is the first report of N. caninum DNA in pampas fox feces (n = 1), thus it was also detected from pampas fox tissues (n = 1). Meanwhile, T. gondii was found in tissues of pampas (n = 1) and crab-eating (n = 1) foxes and H. triffittae in one crab-eating fox tissue. Despite the low percentage (2.5%) of positive samples, the molecular method developed in this study proved to be highly sensitive and accurate allowing to conduct an extensive monitoring analysis for these parasites in wildlife.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Infecções por Protozoários
/
Apicomplexa
/
Raposas
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
/
Screening_studies
Limite:
Animals
País/Região como assunto:
America do sul
/
Uruguay
Idioma:
En
Revista:
Mol Biol Rep
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Uruguai