Research on resistance to sunflower broomrape: an integrated vision

[EN] Sunflower broomrape (Orobanche cumana Wallr.) parasitization on sunflower was first observed at the end of the 19th century and has continued since then jeopardizing sunflower cultivation in many areas of Europe and Asia. A distinctive characteristic of the O. cumana-sunflower parasitic system...

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Autores: Velasco Varo, Leonardo, Pérez-Vich, Begoña, Fernández Martínez, José María
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/158318
Acceso en línea:http://hdl.handle.net/10261/158318
Access Level:acceso abierto
Palabra clave:Avirulence genes
Broomrape
Genetic resistance
Orobanche cumana
Sunflower
Gènes d’avirulence
Orobanche
Résistance génétique
Tournesol
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oai_identifier_str oai:digital.csic.es:10261/158318
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Research on resistance to sunflower broomrape: an integrated vision
Recherche de résistance à l’orobanche chez le tournesol : une vision intégrée
title Research on resistance to sunflower broomrape: an integrated vision
spellingShingle Research on resistance to sunflower broomrape: an integrated vision
Velasco Varo, Leonardo
Avirulence genes
Broomrape
Genetic resistance
Orobanche cumana
Sunflower
Gènes d’avirulence
Orobanche
Résistance génétique
Tournesol
title_short Research on resistance to sunflower broomrape: an integrated vision
title_full Research on resistance to sunflower broomrape: an integrated vision
title_fullStr Research on resistance to sunflower broomrape: an integrated vision
title_full_unstemmed Research on resistance to sunflower broomrape: an integrated vision
title_sort Research on resistance to sunflower broomrape: an integrated vision
dc.creator.none.fl_str_mv Velasco Varo, Leonardo
Pérez-Vich, Begoña
Fernández Martínez, José María
author Velasco Varo, Leonardo
author_facet Velasco Varo, Leonardo
Pérez-Vich, Begoña
Fernández Martínez, José María
author_role author
author2 Pérez-Vich, Begoña
Fernández Martínez, José María
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Avirulence genes
Broomrape
Genetic resistance
Orobanche cumana
Sunflower
Gènes d’avirulence
Orobanche
Résistance génétique
Tournesol
topic Avirulence genes
Broomrape
Genetic resistance
Orobanche cumana
Sunflower
Gènes d’avirulence
Orobanche
Résistance génétique
Tournesol
description [EN] Sunflower broomrape (Orobanche cumana Wallr.) parasitization on sunflower was first observed at the end of the 19th century and has continued since then jeopardizing sunflower cultivation in many areas of Europe and Asia. A distinctive characteristic of the O. cumana-sunflower parasitic system is that it is mainly governed by a gene-for-gene interaction. This determines complete resistance in the host controlled by dominant alleles at a single locus, which facilitates the management of the resistance for hybrid seed production. But on the other hand avirulence in the parasite is also controlled by dominant alleles at a single gene. Monogenic, dominant resistance exerts a strong selection pressure on the parasite that maximizes the probability of overcoming resistance mechanisms in a short period of time. This has in fact resulted in a number of physiological races that periodically surpass all the available resistance sources. The spread of populations to new areas and the subsequent hybridization between populations is another mechanism creating genetic diversity in sunflower broomrape and allegedly recombination of avirulences genes. After more than one century of coexistence, genetic resistance to broomrape in sunflower has to be focused under an integrated approach that considers not only the characterization of resistance mechanisms in the host, but also the genetic and physiological bases of avirulence in the parasite. From the perspective of genetic resistance in sunflower, most important is not relying only on single dominant genes, but following instead pyramiding strategies. These should give priority to combining complementary mechanisms of resistance under both qualitative (vertical) and quantitative (horizontal) genetic control. These aspects are discussed in the paper.
publishDate 2016
dc.date.none.fl_str_mv 2016
2017
2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/158318
url http://hdl.handle.net/10261/158318
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2014-53886-P
http://doi.org/10.1051/ocl/2016002
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling Research on resistance to sunflower broomrape: an integrated visionRecherche de résistance à l’orobanche chez le tournesol : une vision intégréeVelasco Varo, LeonardoPérez-Vich, BegoñaFernández Martínez, José MaríaAvirulence genesBroomrapeGenetic resistanceOrobanche cumanaSunflowerGènes d’avirulenceOrobancheRésistance génétiqueTournesol[EN] Sunflower broomrape (Orobanche cumana Wallr.) parasitization on sunflower was first observed at the end of the 19th century and has continued since then jeopardizing sunflower cultivation in many areas of Europe and Asia. A distinctive characteristic of the O. cumana-sunflower parasitic system is that it is mainly governed by a gene-for-gene interaction. This determines complete resistance in the host controlled by dominant alleles at a single locus, which facilitates the management of the resistance for hybrid seed production. But on the other hand avirulence in the parasite is also controlled by dominant alleles at a single gene. Monogenic, dominant resistance exerts a strong selection pressure on the parasite that maximizes the probability of overcoming resistance mechanisms in a short period of time. This has in fact resulted in a number of physiological races that periodically surpass all the available resistance sources. The spread of populations to new areas and the subsequent hybridization between populations is another mechanism creating genetic diversity in sunflower broomrape and allegedly recombination of avirulences genes. After more than one century of coexistence, genetic resistance to broomrape in sunflower has to be focused under an integrated approach that considers not only the characterization of resistance mechanisms in the host, but also the genetic and physiological bases of avirulence in the parasite. From the perspective of genetic resistance in sunflower, most important is not relying only on single dominant genes, but following instead pyramiding strategies. These should give priority to combining complementary mechanisms of resistance under both qualitative (vertical) and quantitative (horizontal) genetic control. These aspects are discussed in the paper.[FR] Le parasitisme de l’orobanche du tournesol (Orobanche cumana Wallr) a été observé à la fin du 19e siècle et a continué depuis lors, mettant en péril la culture du tournesol dans de nombreuses régions d’Europe et d’Asie. Une caractéristique spécifique de l’interaction O.cumana-Tournesol est qu’elle est principalement régie par une interaction gène pour gène. Elle détermine une résistance totale de l’hôte contrôlée par des allèles dominants à un seul locus, ce qui facilite la gestion de la résistance pour la production de semences hybrides. Mais d’un autre côté, l’avirulence du parasite est également contrôlée par les allèles dominants d’un seul gène. Monogénique et dominante, la résistance exerce une forte pression de sélection sur le parasite qui maximise la probabilité de surmonter les mécanismes de résistance dans un court laps de temps. Cela a en fait abouti à un certain nombre de races physiologiques d’orobanche qui contournent régulièrement toutes les sources de résistance disponibles. La propagation des populations en de nouveaux lieux et l’hybridation ultérieure entre populations est un autre mécanisme qui favorise la diversité génétique de l’orobanche du tournesol et la prétendue recombinaison des gènes d’avirulences. Après plus d’un siècle de coexistence, la résistance génétique à l’orobanche chez le tournesol doit être envisagée via une approche intégrée qui tient compte non seulement de la caractérisation des mécanismes de résistance chez l’hôte, mais aussi des bases génétiques et physiologiques de l’avirulence du parasite. Du point de vue de la résistance génétique du tournesol, le plus important est de ne pas seulement considérer les gènes dominants simples, mais davantage des stratégies pyramidales. Celles-ci devraient laisser la priorité à la combinaison de mécanismes complémentaires de résistance, via un contrôle génétique à la fois qualitatif (vertical) et quantitatif (horizontal). Ces aspects sont abordés dans cet article.Authors’ research on sunflower broomrape is being supported by research project AGL2014-53886-P funded by the Spanish Ministry of Economy and Competitiveness and European Union FEDER funds.Peer reviewedEDP SciencesMinisterio de Economía y Competitividad (España)European CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201720172016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/158318reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2014-53886-Phttp://doi.org/10.1051/ocl/2016002Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1583182026-05-22T06:33:51Z
score 15,812429

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