Verticillium Wilt Evaluation of Olive Breeding Selections Under Semi-Controlled Conditions

Genetic resistance is the most recommended measure to control verticillium wilt in olive (VWO), a vascular disease caused by the soil-borne fungus Verticillium dahliae, which has promoted the development of olive breeding programs aimed at obtaining new resistant and highly yielding cultivars in rec...

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Detalles Bibliográficos
Autores: Serrano, A., Rodríguez-Jurado, Dolores, San Román, Beatriz, Bejarano-Alcázar, José, de la Rosa, Raúl, León, Lorenzo
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/350173
Acceso en línea:http://hdl.handle.net/10261/350173
https://api.elsevier.com/content/abstract/scopus_id/85110124462
Access Level:acceso abierto
Palabra clave:Screening
Olea europaea L.
Verticillium dahliae Kleb
Defoliating pathotype
Environmental conditions
Genetic resistance
Plant–pathogen interaction
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spelling Verticillium Wilt Evaluation of Olive Breeding Selections Under Semi-Controlled ConditionsSerrano, A.Rodríguez-Jurado, DoloresSan Román, BeatrizBejarano-Alcázar, Joséde la Rosa, RaúlLeón, LorenzoScreeningOlea europaea L.Verticillium dahliae KlebDefoliating pathotypeEnvironmental conditionsGenetic resistancePlant–pathogen interactionGenetic resistance is the most recommended measure to control verticillium wilt in olive (VWO), a vascular disease caused by the soil-borne fungus Verticillium dahliae, which has promoted the development of olive breeding programs aimed at obtaining new resistant and highly yielding cultivars in recent years. Screening has been commonly performed under controlled conditions in grow chamber after artificial inoculation during the early stage of breeding programs, but additional evaluation is necessary to confirm previous results as well as to test for additional agronomic traits. During this study, 20 breeding selections initially classified as resistant to the disease have been re-evaluated in artificially infested soils under natural environmental conditions. The maximum disease incidence (52.6%) was reached at 26 months after planting, and the disease intensity index reached the maximum value of 38.5% at 29 months after planting. Nine breeding selections consistently confirmed the previous results regarding resistance to V. dahliae infection; however, contradictory results, compared with those of previous evaluations under controlled conditions in grow chambers, were obtained for the rest of selections tested, thereby underlining the need for long-term experimentation under natural environmental conditions. Additional positive agronomic traits, such as early bearing, were also observed for some of the resistant selections, but plant vigor varied. Some seem highly promising for release as new cultivars when characterization of other important agronomic traits is completed in the future.This research was financially supported by IFAPA project AVA2019.027 and partially funded by European Regional Development Fund (ERDF). Alicia Serrano is grateful for the funding received from the Researcher Training Program of INIA-Autonomous Communities Research Centers (FPI-INIA).Peer reviewedAmerican Phytopathological SocietyInstituto de Investigación y Formación Agraria y Pesquera (España)European Commission202420242021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/350173https://api.elsevier.com/content/abstract/scopus_id/85110124462reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1094/PDIS-08-20-1829-RENoinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3501732026-05-22T06:33:51Z
dc.title.none.fl_str_mv Verticillium Wilt Evaluation of Olive Breeding Selections Under Semi-Controlled Conditions
title Verticillium Wilt Evaluation of Olive Breeding Selections Under Semi-Controlled Conditions
spellingShingle Verticillium Wilt Evaluation of Olive Breeding Selections Under Semi-Controlled Conditions
Serrano, A.
Screening
Olea europaea L.
Verticillium dahliae Kleb
Defoliating pathotype
Environmental conditions
Genetic resistance
Plant–pathogen interaction
title_short Verticillium Wilt Evaluation of Olive Breeding Selections Under Semi-Controlled Conditions
title_full Verticillium Wilt Evaluation of Olive Breeding Selections Under Semi-Controlled Conditions
title_fullStr Verticillium Wilt Evaluation of Olive Breeding Selections Under Semi-Controlled Conditions
title_full_unstemmed Verticillium Wilt Evaluation of Olive Breeding Selections Under Semi-Controlled Conditions
title_sort Verticillium Wilt Evaluation of Olive Breeding Selections Under Semi-Controlled Conditions
dc.creator.none.fl_str_mv Serrano, A.
Rodríguez-Jurado, Dolores
San Román, Beatriz
Bejarano-Alcázar, José
de la Rosa, Raúl
León, Lorenzo
author Serrano, A.
author_facet Serrano, A.
Rodríguez-Jurado, Dolores
San Román, Beatriz
Bejarano-Alcázar, José
de la Rosa, Raúl
León, Lorenzo
author_role author
author2 Rodríguez-Jurado, Dolores
San Román, Beatriz
Bejarano-Alcázar, José
de la Rosa, Raúl
León, Lorenzo
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Instituto de Investigación y Formación Agraria y Pesquera (España)
European Commission
dc.subject.none.fl_str_mv Screening
Olea europaea L.
Verticillium dahliae Kleb
Defoliating pathotype
Environmental conditions
Genetic resistance
Plant–pathogen interaction
topic Screening
Olea europaea L.
Verticillium dahliae Kleb
Defoliating pathotype
Environmental conditions
Genetic resistance
Plant–pathogen interaction
description Genetic resistance is the most recommended measure to control verticillium wilt in olive (VWO), a vascular disease caused by the soil-borne fungus Verticillium dahliae, which has promoted the development of olive breeding programs aimed at obtaining new resistant and highly yielding cultivars in recent years. Screening has been commonly performed under controlled conditions in grow chamber after artificial inoculation during the early stage of breeding programs, but additional evaluation is necessary to confirm previous results as well as to test for additional agronomic traits. During this study, 20 breeding selections initially classified as resistant to the disease have been re-evaluated in artificially infested soils under natural environmental conditions. The maximum disease incidence (52.6%) was reached at 26 months after planting, and the disease intensity index reached the maximum value of 38.5% at 29 months after planting. Nine breeding selections consistently confirmed the previous results regarding resistance to V. dahliae infection; however, contradictory results, compared with those of previous evaluations under controlled conditions in grow chambers, were obtained for the rest of selections tested, thereby underlining the need for long-term experimentation under natural environmental conditions. Additional positive agronomic traits, such as early bearing, were also observed for some of the resistant selections, but plant vigor varied. Some seem highly promising for release as new cultivars when characterization of other important agronomic traits is completed in the future.
publishDate 2021
dc.date.none.fl_str_mv 2021
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/350173
https://api.elsevier.com/content/abstract/scopus_id/85110124462
url http://hdl.handle.net/10261/350173
https://api.elsevier.com/content/abstract/scopus_id/85110124462
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1094/PDIS-08-20-1829-RE
No
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Phytopathological Society
publisher.none.fl_str_mv American Phytopathological Society
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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