Molecular identification of Sarcocystis aucheniae as the macrocyst-forming parasite of llamas

Autores
Carletti, Tamara; Martin, Mara; Romero, Sandra Raquel; Morrison, David A.; Marcoppido, Gisela Ariana; Florin-Christensen, Monica; Schnittger, Leonhard
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The domestic South American camelids (SACs), llama (Lama glama) and alpaca (Lama paco), are frequently found to be infected with Sarcocystis parasites. Infections give rise in skeletal muscle to macroscopic cysts (1–5 mm long) that resemble rice seeds, each containing several million living bradyzoites. The finding of cysts prevents commercialization of SAC meat, an important source of income for rural families in the Andean flatlands. Thus, development of diagnostic methods to facilitate the control of these infections is highly desirable, and the first step to this end is the unequivocal species identification of the causative agent. Based on the cyst form and size, the infecting parasite has been described as Sarcocystis aucheniae; however, this traditional approach is not reliable as similar cysts may contain different species. To date, molecular identification has been done for a single isolate of S. aucheniae from an alpaca in Australia. In order to verify the identity of the species present in SACs of South America, the complete 18S rRNA gene was PCR-amplified and sequenced from macrocyst DNA obtained from three llamas of the Andean flatlands. A phylogenetic Bayesian analysis was carried out using the analyzed and available 18S rRNA sequences of Sarcocystis spp. In the constructed tree, all of the new 18S rRNA gene sequences segregated in a single clade together with the 18S rRNA gene sequence reported from an alpaca in Australia, demonstrating that the isolated parasite is S. aucheniae, and that this parasite indiscriminately infects both domestic SACs. This work represents the first molecular identification of the causative agent of SAC sarcocystiosis in South America, and can contribute to the development of control methods for this neglected parasitosis.
Instituto de Patobiología
Fil: Carletti, Tamara. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina
Fil: Martin, Mara. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina
Fil: Romero, Sandra Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina
Fil: Morrison, David A.. Swedish University of Agricultural Sciences. Department of Biochemical Sciences and Veterinary Public Health; Suecia
Fil: Marcoppido, Gisela Ariana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Florin-Christensen, Monica. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Schnittger, Leonhard. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fuente
Veterinary Parasitology 198 (3–4) : 396-400 (December 2013)
Materia
Sarcocystis
Llama
Enfermedades de los Animales
Llamas
Animal Diseases
Parasites
Parásitos
Sarcocystis aucheniae
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/2019

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network_name_str INTA Digital (INTA)
spelling Molecular identification of Sarcocystis aucheniae as the macrocyst-forming parasite of llamasCarletti, TamaraMartin, MaraRomero, Sandra RaquelMorrison, David A.Marcoppido, Gisela ArianaFlorin-Christensen, MonicaSchnittger, LeonhardSarcocystisLlamaEnfermedades de los AnimalesLlamasAnimal DiseasesParasitesParásitosSarcocystis aucheniaeThe domestic South American camelids (SACs), llama (Lama glama) and alpaca (Lama paco), are frequently found to be infected with Sarcocystis parasites. Infections give rise in skeletal muscle to macroscopic cysts (1–5 mm long) that resemble rice seeds, each containing several million living bradyzoites. The finding of cysts prevents commercialization of SAC meat, an important source of income for rural families in the Andean flatlands. Thus, development of diagnostic methods to facilitate the control of these infections is highly desirable, and the first step to this end is the unequivocal species identification of the causative agent. Based on the cyst form and size, the infecting parasite has been described as Sarcocystis aucheniae; however, this traditional approach is not reliable as similar cysts may contain different species. To date, molecular identification has been done for a single isolate of S. aucheniae from an alpaca in Australia. In order to verify the identity of the species present in SACs of South America, the complete 18S rRNA gene was PCR-amplified and sequenced from macrocyst DNA obtained from three llamas of the Andean flatlands. A phylogenetic Bayesian analysis was carried out using the analyzed and available 18S rRNA sequences of Sarcocystis spp. In the constructed tree, all of the new 18S rRNA gene sequences segregated in a single clade together with the 18S rRNA gene sequence reported from an alpaca in Australia, demonstrating that the isolated parasite is S. aucheniae, and that this parasite indiscriminately infects both domestic SACs. This work represents the first molecular identification of the causative agent of SAC sarcocystiosis in South America, and can contribute to the development of control methods for this neglected parasitosis.Instituto de PatobiologíaFil: Carletti, Tamara. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; ArgentinaFil: Martin, Mara. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; ArgentinaFil: Romero, Sandra Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; ArgentinaFil: Morrison, David A.. Swedish University of Agricultural Sciences. Department of Biochemical Sciences and Veterinary Public Health; SueciaFil: Marcoppido, Gisela Ariana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Florin-Christensen, Monica. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Schnittger, Leonhard. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina2018-03-14T12:17:07Z2018-03-14T12:17:07Z2013-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/2019https://www.sciencedirect.com/science/article/pii/S0304401713005013#!0304-4017https://doi.org/10.1016/j.vetpar.2013.09.007Veterinary Parasitology 198 (3–4) : 396-400 (December 2013)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:16Zoai:localhost:20.500.12123/2019instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:16.485INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Molecular identification of Sarcocystis aucheniae as the macrocyst-forming parasite of llamas
title Molecular identification of Sarcocystis aucheniae as the macrocyst-forming parasite of llamas
spellingShingle Molecular identification of Sarcocystis aucheniae as the macrocyst-forming parasite of llamas
Carletti, Tamara
Sarcocystis
Llama
Enfermedades de los Animales
Llamas
Animal Diseases
Parasites
Parásitos
Sarcocystis aucheniae
title_short Molecular identification of Sarcocystis aucheniae as the macrocyst-forming parasite of llamas
title_full Molecular identification of Sarcocystis aucheniae as the macrocyst-forming parasite of llamas
title_fullStr Molecular identification of Sarcocystis aucheniae as the macrocyst-forming parasite of llamas
title_full_unstemmed Molecular identification of Sarcocystis aucheniae as the macrocyst-forming parasite of llamas
title_sort Molecular identification of Sarcocystis aucheniae as the macrocyst-forming parasite of llamas
dc.creator.none.fl_str_mv Carletti, Tamara
Martin, Mara
Romero, Sandra Raquel
Morrison, David A.
Marcoppido, Gisela Ariana
Florin-Christensen, Monica
Schnittger, Leonhard
author Carletti, Tamara
author_facet Carletti, Tamara
Martin, Mara
Romero, Sandra Raquel
Morrison, David A.
Marcoppido, Gisela Ariana
Florin-Christensen, Monica
Schnittger, Leonhard
author_role author
author2 Martin, Mara
Romero, Sandra Raquel
Morrison, David A.
Marcoppido, Gisela Ariana
Florin-Christensen, Monica
Schnittger, Leonhard
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Sarcocystis
Llama
Enfermedades de los Animales
Llamas
Animal Diseases
Parasites
Parásitos
Sarcocystis aucheniae
topic Sarcocystis
Llama
Enfermedades de los Animales
Llamas
Animal Diseases
Parasites
Parásitos
Sarcocystis aucheniae
dc.description.none.fl_txt_mv The domestic South American camelids (SACs), llama (Lama glama) and alpaca (Lama paco), are frequently found to be infected with Sarcocystis parasites. Infections give rise in skeletal muscle to macroscopic cysts (1–5 mm long) that resemble rice seeds, each containing several million living bradyzoites. The finding of cysts prevents commercialization of SAC meat, an important source of income for rural families in the Andean flatlands. Thus, development of diagnostic methods to facilitate the control of these infections is highly desirable, and the first step to this end is the unequivocal species identification of the causative agent. Based on the cyst form and size, the infecting parasite has been described as Sarcocystis aucheniae; however, this traditional approach is not reliable as similar cysts may contain different species. To date, molecular identification has been done for a single isolate of S. aucheniae from an alpaca in Australia. In order to verify the identity of the species present in SACs of South America, the complete 18S rRNA gene was PCR-amplified and sequenced from macrocyst DNA obtained from three llamas of the Andean flatlands. A phylogenetic Bayesian analysis was carried out using the analyzed and available 18S rRNA sequences of Sarcocystis spp. In the constructed tree, all of the new 18S rRNA gene sequences segregated in a single clade together with the 18S rRNA gene sequence reported from an alpaca in Australia, demonstrating that the isolated parasite is S. aucheniae, and that this parasite indiscriminately infects both domestic SACs. This work represents the first molecular identification of the causative agent of SAC sarcocystiosis in South America, and can contribute to the development of control methods for this neglected parasitosis.
Instituto de Patobiología
Fil: Carletti, Tamara. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina
Fil: Martin, Mara. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina
Fil: Romero, Sandra Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina
Fil: Morrison, David A.. Swedish University of Agricultural Sciences. Department of Biochemical Sciences and Veterinary Public Health; Suecia
Fil: Marcoppido, Gisela Ariana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Florin-Christensen, Monica. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Schnittger, Leonhard. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description The domestic South American camelids (SACs), llama (Lama glama) and alpaca (Lama paco), are frequently found to be infected with Sarcocystis parasites. Infections give rise in skeletal muscle to macroscopic cysts (1–5 mm long) that resemble rice seeds, each containing several million living bradyzoites. The finding of cysts prevents commercialization of SAC meat, an important source of income for rural families in the Andean flatlands. Thus, development of diagnostic methods to facilitate the control of these infections is highly desirable, and the first step to this end is the unequivocal species identification of the causative agent. Based on the cyst form and size, the infecting parasite has been described as Sarcocystis aucheniae; however, this traditional approach is not reliable as similar cysts may contain different species. To date, molecular identification has been done for a single isolate of S. aucheniae from an alpaca in Australia. In order to verify the identity of the species present in SACs of South America, the complete 18S rRNA gene was PCR-amplified and sequenced from macrocyst DNA obtained from three llamas of the Andean flatlands. A phylogenetic Bayesian analysis was carried out using the analyzed and available 18S rRNA sequences of Sarcocystis spp. In the constructed tree, all of the new 18S rRNA gene sequences segregated in a single clade together with the 18S rRNA gene sequence reported from an alpaca in Australia, demonstrating that the isolated parasite is S. aucheniae, and that this parasite indiscriminately infects both domestic SACs. This work represents the first molecular identification of the causative agent of SAC sarcocystiosis in South America, and can contribute to the development of control methods for this neglected parasitosis.
publishDate 2013
dc.date.none.fl_str_mv 2013-12
2018-03-14T12:17:07Z
2018-03-14T12:17:07Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/2019
https://www.sciencedirect.com/science/article/pii/S0304401713005013#!
0304-4017
https://doi.org/10.1016/j.vetpar.2013.09.007
url http://hdl.handle.net/20.500.12123/2019
https://www.sciencedirect.com/science/article/pii/S0304401713005013#!
https://doi.org/10.1016/j.vetpar.2013.09.007
identifier_str_mv 0304-4017
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Veterinary Parasitology 198 (3–4) : 396-400 (December 2013)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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