Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, Argentina
- Autores
- Velez, Maria Laura; Coetzee, M. P. A.; Wingfield, M. J.; Rajchenberg, Mario; Greslebin, Alina Gabriela
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Phytophthora austrocedrae is a recently discovered pathogen that causes severe mortality of Austrocedrus chilensis in Patagonia. The high level of susceptibility of the host tree, together with the distribution pattern of the pathogen, have led to the hypothesis that P. austrocedrae was introduced into Argentina. The aim of this study was to assess the population structure of P. austrocedrae isolates from Argentina in order to gain an understanding of the origin and spread of the pathogen. Genetic diversity was determined based on amplified fragment length polymorphisms (AFLPs). In total, 48 isolates of P. austrocedrae were obtained from infected A. chilensis trees, representing the geographical range of the host. Four primer combinations were used for the AFLP analysis. Of the 332 scored bands, 12% were polymorphic. Gene diversity (h) ranged from 0·01 to 0·03; the Shannon index (I) ranged from 0·01 to 0·04. A high degree of genetic similarity was observed among the isolates (pairwise S values = 0·958–1; 0·993 ± 0·009, mean ± SD). A frequency histogram showed that most of the isolate pairs were identical. Principal coordinate analysis using three-dimensional plots did not group any of the isolates based on their geographical origin. The low genetic diversity (within and between sites) and absence of population structure linked to geographic origin, together with the aggressiveness of the pathogen and the disease progression pattern, suggest that P. austrocedrae might have been introduced into Argentina.
Fil: Velez, Maria Laura. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Coetzee, M. P. A.. University of Pretoria; Sudáfrica
Fil: Wingfield, M. J.. University of Pretoria; Sudáfrica
Fil: Rajchenberg, Mario. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Greslebin, Alina Gabriela. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
Aflp Analysis
Austrocedrus Chilensis
Austrocedrus Root Disease
Biological Invasions
Forest Phytophthoras
Mal del Cipres - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/17351
Ver los metadatos del registro completo
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Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, ArgentinaVelez, Maria LauraCoetzee, M. P. A.Wingfield, M. J.Rajchenberg, MarioGreslebin, Alina GabrielaAflp AnalysisAustrocedrus ChilensisAustrocedrus Root DiseaseBiological InvasionsForest PhytophthorasMal del Cipreshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Phytophthora austrocedrae is a recently discovered pathogen that causes severe mortality of Austrocedrus chilensis in Patagonia. The high level of susceptibility of the host tree, together with the distribution pattern of the pathogen, have led to the hypothesis that P. austrocedrae was introduced into Argentina. The aim of this study was to assess the population structure of P. austrocedrae isolates from Argentina in order to gain an understanding of the origin and spread of the pathogen. Genetic diversity was determined based on amplified fragment length polymorphisms (AFLPs). In total, 48 isolates of P. austrocedrae were obtained from infected A. chilensis trees, representing the geographical range of the host. Four primer combinations were used for the AFLP analysis. Of the 332 scored bands, 12% were polymorphic. Gene diversity (h) ranged from 0·01 to 0·03; the Shannon index (I) ranged from 0·01 to 0·04. A high degree of genetic similarity was observed among the isolates (pairwise S values = 0·958–1; 0·993 ± 0·009, mean ± SD). A frequency histogram showed that most of the isolate pairs were identical. Principal coordinate analysis using three-dimensional plots did not group any of the isolates based on their geographical origin. The low genetic diversity (within and between sites) and absence of population structure linked to geographic origin, together with the aggressiveness of the pathogen and the disease progression pattern, suggest that P. austrocedrae might have been introduced into Argentina.Fil: Velez, Maria Laura. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Coetzee, M. P. A.. University of Pretoria; SudáfricaFil: Wingfield, M. J.. University of Pretoria; SudáfricaFil: Rajchenberg, Mario. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Greslebin, Alina Gabriela. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaWiley2014-02-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17351Velez, Maria Laura; Coetzee, M. P. A.; Wingfield, M. J.; Rajchenberg, Mario; Greslebin, Alina Gabriela; Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, Argentina; Wiley; Plant Pathology; 63; 1; 27-2-2014; 212-2200032-0862enginfo:eu-repo/semantics/altIdentifier/doi/10.1111/ppa.12067info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/ppa.12067/abstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:33Zoai:ri.conicet.gov.ar:11336/17351instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:36:33.446CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, Argentina |
title |
Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, Argentina |
spellingShingle |
Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, Argentina Velez, Maria Laura Aflp Analysis Austrocedrus Chilensis Austrocedrus Root Disease Biological Invasions Forest Phytophthoras Mal del Cipres |
title_short |
Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, Argentina |
title_full |
Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, Argentina |
title_fullStr |
Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, Argentina |
title_full_unstemmed |
Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, Argentina |
title_sort |
Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, Argentina |
dc.creator.none.fl_str_mv |
Velez, Maria Laura Coetzee, M. P. A. Wingfield, M. J. Rajchenberg, Mario Greslebin, Alina Gabriela |
author |
Velez, Maria Laura |
author_facet |
Velez, Maria Laura Coetzee, M. P. A. Wingfield, M. J. Rajchenberg, Mario Greslebin, Alina Gabriela |
author_role |
author |
author2 |
Coetzee, M. P. A. Wingfield, M. J. Rajchenberg, Mario Greslebin, Alina Gabriela |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Aflp Analysis Austrocedrus Chilensis Austrocedrus Root Disease Biological Invasions Forest Phytophthoras Mal del Cipres |
topic |
Aflp Analysis Austrocedrus Chilensis Austrocedrus Root Disease Biological Invasions Forest Phytophthoras Mal del Cipres |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Phytophthora austrocedrae is a recently discovered pathogen that causes severe mortality of Austrocedrus chilensis in Patagonia. The high level of susceptibility of the host tree, together with the distribution pattern of the pathogen, have led to the hypothesis that P. austrocedrae was introduced into Argentina. The aim of this study was to assess the population structure of P. austrocedrae isolates from Argentina in order to gain an understanding of the origin and spread of the pathogen. Genetic diversity was determined based on amplified fragment length polymorphisms (AFLPs). In total, 48 isolates of P. austrocedrae were obtained from infected A. chilensis trees, representing the geographical range of the host. Four primer combinations were used for the AFLP analysis. Of the 332 scored bands, 12% were polymorphic. Gene diversity (h) ranged from 0·01 to 0·03; the Shannon index (I) ranged from 0·01 to 0·04. A high degree of genetic similarity was observed among the isolates (pairwise S values = 0·958–1; 0·993 ± 0·009, mean ± SD). A frequency histogram showed that most of the isolate pairs were identical. Principal coordinate analysis using three-dimensional plots did not group any of the isolates based on their geographical origin. The low genetic diversity (within and between sites) and absence of population structure linked to geographic origin, together with the aggressiveness of the pathogen and the disease progression pattern, suggest that P. austrocedrae might have been introduced into Argentina. Fil: Velez, Maria Laura. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Coetzee, M. P. A.. University of Pretoria; Sudáfrica Fil: Wingfield, M. J.. University of Pretoria; Sudáfrica Fil: Rajchenberg, Mario. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Greslebin, Alina Gabriela. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
Phytophthora austrocedrae is a recently discovered pathogen that causes severe mortality of Austrocedrus chilensis in Patagonia. The high level of susceptibility of the host tree, together with the distribution pattern of the pathogen, have led to the hypothesis that P. austrocedrae was introduced into Argentina. The aim of this study was to assess the population structure of P. austrocedrae isolates from Argentina in order to gain an understanding of the origin and spread of the pathogen. Genetic diversity was determined based on amplified fragment length polymorphisms (AFLPs). In total, 48 isolates of P. austrocedrae were obtained from infected A. chilensis trees, representing the geographical range of the host. Four primer combinations were used for the AFLP analysis. Of the 332 scored bands, 12% were polymorphic. Gene diversity (h) ranged from 0·01 to 0·03; the Shannon index (I) ranged from 0·01 to 0·04. A high degree of genetic similarity was observed among the isolates (pairwise S values = 0·958–1; 0·993 ± 0·009, mean ± SD). A frequency histogram showed that most of the isolate pairs were identical. Principal coordinate analysis using three-dimensional plots did not group any of the isolates based on their geographical origin. The low genetic diversity (within and between sites) and absence of population structure linked to geographic origin, together with the aggressiveness of the pathogen and the disease progression pattern, suggest that P. austrocedrae might have been introduced into Argentina. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-02-27 |
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/11336/17351 Velez, Maria Laura; Coetzee, M. P. A.; Wingfield, M. J.; Rajchenberg, Mario; Greslebin, Alina Gabriela; Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, Argentina; Wiley; Plant Pathology; 63; 1; 27-2-2014; 212-220 0032-0862 |
url |
http://hdl.handle.net/11336/17351 |
identifier_str_mv |
Velez, Maria Laura; Coetzee, M. P. A.; Wingfield, M. J.; Rajchenberg, Mario; Greslebin, Alina Gabriela; Evidence of low levels of genetic diversity for the Phytophthora austrocedrae population in Patagonia, Argentina; Wiley; Plant Pathology; 63; 1; 27-2-2014; 212-220 0032-0862 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1111/ppa.12067 info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/ppa.12067/abstract |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |