Characterization of viral agents present in tomato crops in Arica and Parinacota Region of Northern Chile

In Arica and Parinacota Region, the Azapa valley is the main tomato producer for fresh consumption. In last years, due to fluctuating climatic conditions presented in this region, a series of viral diseases were detected which, according to estimates in the field, have a high impact on production. T...

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Autor: Rojas-Bertini, Claudia Andrea
Formato: tesis doctoral
Estado:Versión publicada
Fecha de publicación:2019
País:Chile
OAI Identifier:oai:repositorio.anid.cl:10533/249760
Acesso em linha:https://hdl.handle.net/10533/249760
Access Level:acceso abierto
Palavra-chave:Ciencias Agrícolas
Otras Ciencias Agrícolas
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dc.title.es_CL.fl_str_mv Characterization of viral agents present in tomato crops in Arica and Parinacota Region of Northern Chile
Caracterización de agentes virales afectando cultivos de tomate en la región de Arica y Parinacota, norte de Chile
title Characterization of viral agents present in tomato crops in Arica and Parinacota Region of Northern Chile
spellingShingle Characterization of viral agents present in tomato crops in Arica and Parinacota Region of Northern Chile
Rojas-Bertini, Claudia Andrea
Ciencias Agrícolas
Otras Ciencias Agrícolas
title_short Characterization of viral agents present in tomato crops in Arica and Parinacota Region of Northern Chile
title_full Characterization of viral agents present in tomato crops in Arica and Parinacota Region of Northern Chile
title_fullStr Characterization of viral agents present in tomato crops in Arica and Parinacota Region of Northern Chile
title_full_unstemmed Characterization of viral agents present in tomato crops in Arica and Parinacota Region of Northern Chile
title_sort Characterization of viral agents present in tomato crops in Arica and Parinacota Region of Northern Chile
dc.creator.none.fl_str_mv Rojas-Bertini, Claudia Andrea
author Rojas-Bertini, Claudia Andrea
author_facet Rojas-Bertini, Claudia Andrea
author_role author
dc.contributor.advisor.none.fl_str_mv Rosales-Villavicencio, Inés Marlene
dc.contributor.institution.es_CL.fl_str_mv PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE
dc.subject.oecd1n.es_CL.fl_str_mv Ciencias Agrícolas
topic Ciencias Agrícolas
Otras Ciencias Agrícolas
dc.subject.oecd2n.es_CL.fl_str_mv Otras Ciencias Agrícolas
description In Arica and Parinacota Region, the Azapa valley is the main tomato producer for fresh consumption. In last years, due to fluctuating climatic conditions presented in this region, a series of viral diseases were detected which, according to estimates in the field, have a high impact on production. The objective of this research was to determine the prevalence and geographical distribution of three emerging virus diseases: Tomato yellow vein streak virus (TYVSV), Peru tomato virus (PTV) and Tomato leaf deformation virus (ToLDeV), present in tomato in this region and to characterize the symptomatology and genome. The results showed the three viruses studied were founded in single and multiple infection, being the begomoviruses TYVSV and ToLDeV those that presented the highest prevalence. In the case of PTV, the biological characterization of one new isolates of PTV collected in tomato crop in Azapa valley was described. In other hand, through this study it was determine the first report of Southern tomato virus STV, and correspond to the first identification this virus affecting tomatoes in South America. Finally, in this research report a resistance-breaking isolate of Tomato spotted wilt virus TSWV infecting resistant pepper cultivars in the north of Chile. Key words: Arica and Parinacota region, Tomato yellow vein streak virus, Tomato leaf deformation virus, Peru tomato virus, prevalence, molecular characterization, Southern tomato virus, resistance-breaking
publishDate 2019
dc.date.issued.es_CL.fl_str_mv 2019
dc.date.accessioned.none.fl_str_mv 2021-04-20T20:43:56Z
2022-08-19T17:12:26Z
dc.date.available.none.fl_str_mv 2021-04-20T20:43:56Z
2022-08-19T17:12:26Z
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spelling PONTIFICIA UNIVERSIDAD CATOLICA DE CHILERojas-Bertini, Claudia Andrea2019https://hdl.handle.net/10533/249760http://purl.org/coar/access_right/c_abf2Otras Ciencias AgrícolasCiencias AgrícolasCharacterization of viral agents present in tomato crops in Arica and Parinacota Region of Northern ChileRosales-Villavicencio, Inés MarlenePONTIFICIA UNIVERSIDAD CATOLICA DE CHILECHILERojas-Bertini, Claudia Andrea2021-04-20T20:43:56Z2022-08-19T17:12:26Z2021-04-20T20:43:56Z2022-08-19T17:12:26Z2019In Arica and Parinacota Region, the Azapa valley is the main tomato producer for fresh consumption. In last years, due to fluctuating climatic conditions presented in this region, a series of viral diseases were detected which, according to estimates in the field, have a high impact on production. The objective of this research was to determine the prevalence and geographical distribution of three emerging virus diseases: Tomato yellow vein streak virus (TYVSV), Peru tomato virus (PTV) and Tomato leaf deformation virus (ToLDeV), present in tomato in this region and to characterize the symptomatology and genome. The results showed the three viruses studied were founded in single and multiple infection, being the begomoviruses TYVSV and ToLDeV those that presented the highest prevalence. In the case of PTV, the biological characterization of one new isolates of PTV collected in tomato crop in Azapa valley was described. In other hand, through this study it was determine the first report of Southern tomato virus STV, and correspond to the first identification this virus affecting tomatoes in South America. Finally, in this research report a resistance-breaking isolate of Tomato spotted wilt virus TSWV infecting resistant pepper cultivars in the north of Chile. Key words: Arica and Parinacota region, Tomato yellow vein streak virus, Tomato leaf deformation virus, Peru tomato virus, prevalence, molecular characterization, Southern tomato virus, resistance-breakingEn la región de Arica y Parinacota, el valle de Azapa es el principal productor de tomate para consumo fresco. En los últimos años, dada las condiciones climáticas fluctuantes en esta región, se detectaron una serie de enfermedades virales con un alto impacto en la producción. El objetivo de esta investigación fue determinar la prevalencia y distribución geográfica de tres virus emergentes: Virus de la vena amarilla del tomate (TYVSV), Virus del mosaico peruano del tomate (PTV) y Virus de las hojas deformadas del tomate (ToLDeV), afectando cultivos de tomate en esta región y caracterizar su sintomatología y secuencia genómica. Los resultados mostraron que los tres virus estudiados fueron encontrados en infección simple y múltiple, siendo los begomovirus TYVSV y ToLDeV los que presentaron la mayor prevalencia. En el caso de PTV, se realizó la caracterización biológica y molecular a partir de un aislado de tomate en el valle de Azapa. Por otra parte, en este estudio se determinó por primera vez el Virus meridional del tomate (STV), el cual corresponde a la primera identificación de este virus afectando tomates en América del Sur. Finalmente, en esta investigación se reporta el quiebre de resistencia del Virus del bronceado del tomate TSWV en variedades de pimientos con resistencia cultivados en el norte de Chile.21120519https://hdl.handle.net/10533/249760instname: Conicytreponame: Repositorio Digital RI2.0info:eu-repo/grantAgreement//21120519info:eu-repo/semantics/dataset/hdl.handle.net/10533/93488https://repositorio.uc.cl/handle/11534/22952info:eu-repo/semantics/openAccessAttribution-NonCommercial-NoDerivs 3.0 Chilehttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/Ciencias AgrícolasOtras Ciencias AgrícolasCharacterization of viral agents present in tomato crops in Arica and Parinacota Region of Northern ChileCaracterización de agentes virales afectando cultivos de tomate en la región de Arica y Parinacota, norte de Chileinfo:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/publishedVersionTesisTesishttps://hdl.handle.net/10533/249760e323cdf3-0e58-4f9d-92bf-8cb52d948d65virtual::64871-1e323cdf3-0e58-4f9d-92bf-8cb52d948d65virtual::64871-1THUMBNAILTesis Doctorado. 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