Detection of tilapia lake virus (TiLV) by seminested RT-PCR in farmed tilapias from two regions of Peru

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The production of tilapia (Oreochromis sp) is being affected by outbreaks of lake tilapia virus (TiLV) with high mortality in the main breeding regions in Peru. The aim of this study was to determine the presence of TiLV in two tilapia fish farms in Piura and San Martín, which presented mortalities...

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Autores: Castañeda Vargas, Arnaldo Edward, Manuel Feria, Manuel, Odalis Toledo, Odalis, Castillo, Deysy, Cueva, Mario, Motte, E.
Formato: artículo
Fecha de Publicación:2020
Institución:Universidad Nacional Mayor de San Marcos
Repositorio:Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
Lenguaje:español
OAI Identifier:oai:ojs.csi.unmsm:article/16158
Enlace del recurso:https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16158
Nivel de acceso:acceso abierto
Materia:tilapia lake virus
PCR
tilapia
TiLV
virus de la tilapia del lago
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spelling Detection of tilapia lake virus (TiLV) by seminested RT-PCR in farmed tilapias from two regions of PeruDetección del virus de la tilapia del lago (TiLV) mediante semi-nested RT-PCR en tilapias cultivadas provenientes de dos regiones del PerúCastañeda Vargas, Arnaldo EdwardManuel Feria, ManuelOdalis Toledo, OdalisCastillo, DeysyCueva, MarioMotte, E.tilapia lake virusPCRtilapiaTiLVvirus de la tilapia del lagoPCRtilapiaTiLVThe production of tilapia (Oreochromis sp) is being affected by outbreaks of lake tilapia virus (TiLV) with high mortality in the main breeding regions in Peru. The aim of this study was to determine the presence of TiLV in two tilapia fish farms in Piura and San Martín, which presented mortalities greater than 60%. Samples (liver and brain) were taken from 70 fish from different stages of culture that showed lethargy, loss of appetite, eye lesions and skin erosions. The detection and confirmation of TiLV was determined by semi-nested RT-PCR and subsequent sequencing of the amplified product of segment 3 of the virus. Products of the expected weight (250 bp) corresponding to samples from the two production centres were found. The phylogenetic analysis showed a high homology among the isolates and an identity greater than 90% with the Israeli reference strain (KU751816.1).El cultivo de la tilapia (Oreochromis sp) se encuentra afectada por brotes con alta mortalidad del virus de la tilapia del lago (TiLV) en las principales regiones de crianza en el Perú. El presente estudio tuvo como objetivo determinar la presencia del TiLV en dos centros piscícolas de tilapia en Piura y San Martín, que presentaron mortalidades superiores al 60%. Se tomaron muestras (hígado y cerebro) de 70 peces de diferentes fases de cultivo que mostraron letargia, pérdida del apetito, lesiones oculares y erosiones de la piel. La detección y confirmación del TiLV se determinó mediante semi-nested RT-PCR y posterior secuenciación del producto amplificado del segmento 3 del virus. Se encontraron productos del peso esperado (250 pb) correspondientes a muestras de los dos centros de producción. El análisis filogenético demostró una alta homología entre los aislados y una identidad mayor al 90% con la cepa de referencia israelí (KU751816.1).Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria2020-06-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/1615810.15381/rivep.v31i2.16158Revista de Investigaciones Veterinarias del Perú; Vol 31 No 2 (2020); e16158Revista de Investigaciones Veterinarias del Perú; Vol. 31 Núm. 2 (2020); e161581682-34191609-9117reponame:Revista UNMSM - Revista de Investigaciones Veterinarias del Perúinstname:Universidad Nacional Mayor de San Marcosinstacron:UNMSMspahttps://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16158/15105Derechos de autor 2020 Arnaldo Edward Castañeda Vargas, Manuel Manuel Feria, Odalis Odalis Toledo, Deysy Castillo, Mario Cueva, E. Mottehttp://creativecommons.org/licenses/by-nc-sa/4.0info:eu-repo/semantics/openAccess2021-06-01T18:09:52Zmail@mail.com -
dc.title.none.fl_str_mv Detection of tilapia lake virus (TiLV) by seminested RT-PCR in farmed tilapias from two regions of Peru
Detección del virus de la tilapia del lago (TiLV) mediante semi-nested RT-PCR en tilapias cultivadas provenientes de dos regiones del Perú
title Detection of tilapia lake virus (TiLV) by seminested RT-PCR in farmed tilapias from two regions of Peru
spellingShingle Detection of tilapia lake virus (TiLV) by seminested RT-PCR in farmed tilapias from two regions of Peru
Castañeda Vargas, Arnaldo Edward
tilapia lake virus
PCR
tilapia
TiLV
virus de la tilapia del lago
PCR
tilapia
TiLV
title_short Detection of tilapia lake virus (TiLV) by seminested RT-PCR in farmed tilapias from two regions of Peru
title_full Detection of tilapia lake virus (TiLV) by seminested RT-PCR in farmed tilapias from two regions of Peru
title_fullStr Detection of tilapia lake virus (TiLV) by seminested RT-PCR in farmed tilapias from two regions of Peru
title_full_unstemmed Detection of tilapia lake virus (TiLV) by seminested RT-PCR in farmed tilapias from two regions of Peru
title_sort Detection of tilapia lake virus (TiLV) by seminested RT-PCR in farmed tilapias from two regions of Peru
dc.creator.none.fl_str_mv Castañeda Vargas, Arnaldo Edward
Manuel Feria, Manuel
Odalis Toledo, Odalis
Castillo, Deysy
Cueva, Mario
Motte, E.
author Castañeda Vargas, Arnaldo Edward
author_facet Castañeda Vargas, Arnaldo Edward
Manuel Feria, Manuel
Odalis Toledo, Odalis
Castillo, Deysy
Cueva, Mario
Motte, E.
author_role author
author2 Manuel Feria, Manuel
Odalis Toledo, Odalis
Castillo, Deysy
Cueva, Mario
Motte, E.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv tilapia lake virus
PCR
tilapia
TiLV
virus de la tilapia del lago
PCR
tilapia
TiLV
topic tilapia lake virus
PCR
tilapia
TiLV
virus de la tilapia del lago
PCR
tilapia
TiLV
dc.description.none.fl_txt_mv The production of tilapia (Oreochromis sp) is being affected by outbreaks of lake tilapia virus (TiLV) with high mortality in the main breeding regions in Peru. The aim of this study was to determine the presence of TiLV in two tilapia fish farms in Piura and San Martín, which presented mortalities greater than 60%. Samples (liver and brain) were taken from 70 fish from different stages of culture that showed lethargy, loss of appetite, eye lesions and skin erosions. The detection and confirmation of TiLV was determined by semi-nested RT-PCR and subsequent sequencing of the amplified product of segment 3 of the virus. Products of the expected weight (250 bp) corresponding to samples from the two production centres were found. The phylogenetic analysis showed a high homology among the isolates and an identity greater than 90% with the Israeli reference strain (KU751816.1).
El cultivo de la tilapia (Oreochromis sp) se encuentra afectada por brotes con alta mortalidad del virus de la tilapia del lago (TiLV) en las principales regiones de crianza en el Perú. El presente estudio tuvo como objetivo determinar la presencia del TiLV en dos centros piscícolas de tilapia en Piura y San Martín, que presentaron mortalidades superiores al 60%. Se tomaron muestras (hígado y cerebro) de 70 peces de diferentes fases de cultivo que mostraron letargia, pérdida del apetito, lesiones oculares y erosiones de la piel. La detección y confirmación del TiLV se determinó mediante semi-nested RT-PCR y posterior secuenciación del producto amplificado del segmento 3 del virus. Se encontraron productos del peso esperado (250 pb) correspondientes a muestras de los dos centros de producción. El análisis filogenético demostró una alta homología entre los aislados y una identidad mayor al 90% con la cepa de referencia israelí (KU751816.1).
description The production of tilapia (Oreochromis sp) is being affected by outbreaks of lake tilapia virus (TiLV) with high mortality in the main breeding regions in Peru. The aim of this study was to determine the presence of TiLV in two tilapia fish farms in Piura and San Martín, which presented mortalities greater than 60%. Samples (liver and brain) were taken from 70 fish from different stages of culture that showed lethargy, loss of appetite, eye lesions and skin erosions. The detection and confirmation of TiLV was determined by semi-nested RT-PCR and subsequent sequencing of the amplified product of segment 3 of the virus. Products of the expected weight (250 bp) corresponding to samples from the two production centres were found. The phylogenetic analysis showed a high homology among the isolates and an identity greater than 90% with the Israeli reference strain (KU751816.1).
publishDate 2020
dc.date.none.fl_str_mv 2020-06-20
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16158
10.15381/rivep.v31i2.16158
url https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16158
identifier_str_mv 10.15381/rivep.v31i2.16158
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16158/15105
dc.rights.none.fl_str_mv Derechos de autor 2020 Arnaldo Edward Castañeda Vargas, Manuel Manuel Feria, Odalis Odalis Toledo, Deysy Castillo, Mario Cueva, E. Motte
http://creativecommons.org/licenses/by-nc-sa/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos de autor 2020 Arnaldo Edward Castañeda Vargas, Manuel Manuel Feria, Odalis Odalis Toledo, Deysy Castillo, Mario Cueva, E. Motte
http://creativecommons.org/licenses/by-nc-sa/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
publisher.none.fl_str_mv Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
dc.source.none.fl_str_mv Revista de Investigaciones Veterinarias del Perú; Vol 31 No 2 (2020); e16158
Revista de Investigaciones Veterinarias del Perú; Vol. 31 Núm. 2 (2020); e16158
1682-3419
1609-9117
reponame:Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
instname:Universidad Nacional Mayor de San Marcos
instacron:UNMSM
reponame_str Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
collection Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
instname_str Universidad Nacional Mayor de San Marcos
instacron_str UNMSM
institution UNMSM
repository.name.fl_str_mv -
repository.mail.fl_str_mv mail@mail.com
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score 13.871978
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