Identificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do Norte
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFERSA |
Texto Completo: | https://repositorio.ufersa.edu.br/handle/tede/634 |
Resumo: | White spot syndrome is an acute conatgious disease whose etiologic agent is the White Spot Syndrome Virus (WSSV) responsible for serious economic losses in world acquaculture. Since 2012, it has been notified WSSV occurrence in the state of Rio Grande do Norte - RN, one of most important shrimp production region. Despite its importance, there is a lack of information about the origins and biodiversity of circulating virus. The aim of investigation was to detect WSSV in Litopenaeus vannamei from farms in the RN as well as perform genotyping of the isolates. A total of five farms were surveyed, from which 10 samples were collected each one. We selected two ponds of each of the farms, chosen because clinical suspicion of WSSV. Genomic DNA was extracted to detect the virus by polymerase chain reaction (PCR). Subsequently, was performed by PCR genotyping of the positive DNA samples analysing variable number of tandem repeats - VNTR in three molecular markers (ORFs 75, 94 and 125). The results revealed the presence of virus in only one of the 5 analyzed farms. The loci ORF 75 and ORF 94 were identified in isolates from positive farm and no amplification failure for ORF 125. The number of repeating units (RUs) was calculated, and found to 9 repetitions ORF 75 and 10 RUs to ORF 94, a pattern that had not been described, stressing the need for more strain typing for screening and surveillance of the disease |
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Sakamoto, Sidnei MiyoshiMartins, Pedro Carlos Cunhahttp://lattes.cnpq.br/9303700581868330Pontes, Cibele Soareshttp://lattes.cnpq.br/394301867315870306906005421http://lattes.cnpq.br/1865285702473512http://lattes.cnpq.br/6538549762348659Peixoto, Emanuelly Cristina Rodrigues2017-03-23T14:59:59Z2016-08-31PEIXOTO, Emanuelly Cristina Rodrigues. Identificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do Norte. 2016. 47 f. Dissertação (Mestrado) - Curso de Pós-graduação em Ciência Animal, Universidade Federal Rural do Semi-Árido, Mossoró, 2016.https://repositorio.ufersa.edu.br/handle/tede/634White spot syndrome is an acute conatgious disease whose etiologic agent is the White Spot Syndrome Virus (WSSV) responsible for serious economic losses in world acquaculture. Since 2012, it has been notified WSSV occurrence in the state of Rio Grande do Norte - RN, one of most important shrimp production region. Despite its importance, there is a lack of information about the origins and biodiversity of circulating virus. The aim of investigation was to detect WSSV in Litopenaeus vannamei from farms in the RN as well as perform genotyping of the isolates. A total of five farms were surveyed, from which 10 samples were collected each one. We selected two ponds of each of the farms, chosen because clinical suspicion of WSSV. Genomic DNA was extracted to detect the virus by polymerase chain reaction (PCR). Subsequently, was performed by PCR genotyping of the positive DNA samples analysing variable number of tandem repeats - VNTR in three molecular markers (ORFs 75, 94 and 125). The results revealed the presence of virus in only one of the 5 analyzed farms. The loci ORF 75 and ORF 94 were identified in isolates from positive farm and no amplification failure for ORF 125. The number of repeating units (RUs) was calculated, and found to 9 repetitions ORF 75 and 10 RUs to ORF 94, a pattern that had not been described, stressing the need for more strain typing for screening and surveillance of the diseaseA síndrome da mancha branca é uma doença notificável cujo agente etiológico é o Vírus da Síndrome da Mancha Branca (White Spot Syndrome Virus - WSSV) responsável por graves perdas econômicas na carcinicultura mundial. Desde 2012, têm sido verificados registros oficiais da presença do vírus no estado do Rio Grande do Norte - RN , região de extensa produção camaroneira. Apesar da importância, pouca informação tem sido produzida quanto às origens e biodiversidade dos virus circulantes. Diante disso, objetivou-se investigar a presença do vírus em criações de Litopenaues vannamei oriundos de fazendas do RN, bem como realizar a genotipagem dos isolados. Um total de cinco fazendas foram submetidas ao estudo, das quais foram coletadas 10 amostras de cada. Foram selecionados dois viveiros de cada uma das fazendas, escolhidos mediante suspeita clínica de WSSV. O DNA genômico foi extraído para investigação da presença ou ausência do vírus através da reação em cadeia da polimerase (PCR). Posteriormente, foi realizada por PCR a genotipagem dos isolados utilizando as repetições em tandem de número variável – VNTR (ORFs 75, 94 e 125). Os resultados revelaram a presença do vírus em apenas uma das 5 fazendas analisadas. As regiões (ORF 75 e ORF 94) foram identificadas nos isolados da fazenda positiva e não houve amplificação para o ORF 125. O número de unidades repetidas (RUs) foi calculado, sendo verificado 9 repetições para o ORF 75 e 10 para o ORF 94, um padrão que ainda não havia sido descrito, alertando para a necessidade de mais isolados caracterizados geneticamente para o rastreamento e vigilância epidemiológica da doençaCoordenação de Aperfeiçoamento de Pessoal de Nível Superior2017-03-23application/pdfhttp://repositorio.ufersa.edu.br/retrieve/1441/EmanuellyCRP_DISSERT.pdf.jpgporUniversidade Federal Rural do Semi-ÁridoPrograma de Pós-Graduação em Ciência AnimalUFERSABrasilCC-BY-SAinfo:eu-repo/semantics/openAccessWSSV,ORF 75ORF 94ORF 125VNTRWSSVORF 75ORF 94ORF 125VNTRCNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIAIdentificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do NorteIdentification and genotyping of white spot syndrome virus ( WSSV ) isolated from Litopenaeus vannamei in the state Rio Grande do Norteinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisreponame:Biblioteca Digital de Teses e Dissertações da UFERSAinstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAORIGINALEmanuellyCRP_DISSERT.pdfEmanuellyCRP_DISSERT.pdfapplication/pdf744501https://repositorio.ufersa.edu.br//bitstream/tede/634/1/EmanuellyCRP_DISSERT.pdfc98036be80df6f22f868dcbb58ac0ac7MD51LICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Identificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do Norte |
dc.title.alternative.por.fl_str_mv |
Identification and genotyping of white spot syndrome virus ( WSSV ) isolated from Litopenaeus vannamei in the state Rio Grande do Norte |
title |
Identificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do Norte |
spellingShingle |
Identificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do Norte Peixoto, Emanuelly Cristina Rodrigues WSSV, ORF 75 ORF 94 ORF 125 VNTR WSSV ORF 75 ORF 94 ORF 125 VNTR CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
title_short |
Identificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do Norte |
title_full |
Identificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do Norte |
title_fullStr |
Identificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do Norte |
title_full_unstemmed |
Identificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do Norte |
title_sort |
Identificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do Norte |
author |
Peixoto, Emanuelly Cristina Rodrigues |
author_facet |
Peixoto, Emanuelly Cristina Rodrigues |
author_role |
author |
dc.contributor.authorID.por.fl_str_mv |
06906005421 |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/1865285702473512 |
dc.contributor.advisorLattes.por.fl_str_mv |
http://lattes.cnpq.br/6538549762348659 |
dc.contributor.advisor1.fl_str_mv |
Sakamoto, Sidnei Miyoshi |
dc.contributor.referee1.fl_str_mv |
Martins, Pedro Carlos Cunha |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/9303700581868330 |
dc.contributor.referee2.fl_str_mv |
Pontes, Cibele Soares |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/3943018673158703 |
dc.contributor.author.fl_str_mv |
Peixoto, Emanuelly Cristina Rodrigues |
contributor_str_mv |
Sakamoto, Sidnei Miyoshi Martins, Pedro Carlos Cunha Pontes, Cibele Soares |
dc.subject.por.fl_str_mv |
WSSV, ORF 75 ORF 94 ORF 125 VNTR WSSV ORF 75 ORF 94 ORF 125 VNTR |
topic |
WSSV, ORF 75 ORF 94 ORF 125 VNTR WSSV ORF 75 ORF 94 ORF 125 VNTR CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
description |
White spot syndrome is an acute conatgious disease whose etiologic agent is the White Spot Syndrome Virus (WSSV) responsible for serious economic losses in world acquaculture. Since 2012, it has been notified WSSV occurrence in the state of Rio Grande do Norte - RN, one of most important shrimp production region. Despite its importance, there is a lack of information about the origins and biodiversity of circulating virus. The aim of investigation was to detect WSSV in Litopenaeus vannamei from farms in the RN as well as perform genotyping of the isolates. A total of five farms were surveyed, from which 10 samples were collected each one. We selected two ponds of each of the farms, chosen because clinical suspicion of WSSV. Genomic DNA was extracted to detect the virus by polymerase chain reaction (PCR). Subsequently, was performed by PCR genotyping of the positive DNA samples analysing variable number of tandem repeats - VNTR in three molecular markers (ORFs 75, 94 and 125). The results revealed the presence of virus in only one of the 5 analyzed farms. The loci ORF 75 and ORF 94 were identified in isolates from positive farm and no amplification failure for ORF 125. The number of repeating units (RUs) was calculated, and found to 9 repetitions ORF 75 and 10 RUs to ORF 94, a pattern that had not been described, stressing the need for more strain typing for screening and surveillance of the disease |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-08-31 |
dc.date.accessioned.fl_str_mv |
2017-03-23T14:59:59Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PEIXOTO, Emanuelly Cristina Rodrigues. Identificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do Norte. 2016. 47 f. Dissertação (Mestrado) - Curso de Pós-graduação em Ciência Animal, Universidade Federal Rural do Semi-Árido, Mossoró, 2016. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufersa.edu.br/handle/tede/634 |
identifier_str_mv |
PEIXOTO, Emanuelly Cristina Rodrigues. Identificação e genotipagem do vírus da síndrome da mancha branca (WSSV) isolado de Litopenaeus vannamei no estado do Rio Grande do Norte. 2016. 47 f. Dissertação (Mestrado) - Curso de Pós-graduação em Ciência Animal, Universidade Federal Rural do Semi-Árido, Mossoró, 2016. |
url |
https://repositorio.ufersa.edu.br/handle/tede/634 |
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por |
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por |
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CC-BY-SA info:eu-repo/semantics/openAccess |
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Universidade Federal Rural do Semi-Árido |
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Programa de Pós-Graduação em Ciência Animal |
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UFERSA |
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Brasil |
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Universidade Federal Rural do Semi-Árido |
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