Variability among maize (Zea mays L.) inbred lines for seed longevity

Genotypes conserved in active collections may suffer genetic erosion and modifications. The objective of this work was to investigate changes in germination and vigour in maize (Zea mays L.) inbred lines during cold storage in an active collection. Seeds of 16 maize inbreds produced along 16 years w...

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Detalhes bibliográficos
Autores: Revilla Temiño, Pedro, Velasco Pazos, Pablo, Malvar Pintos, Rosa Ana, Cartea González, María Elena, Ordás Pérez, Amando
Formato: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2006
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/101593
Acesso em linha:http://hdl.handle.net/10261/101593
Access Level:acceso abierto
Palavra-chave:Germplasm conservation
Maize
Variability
Zea mays L.
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spelling Variability among maize (Zea mays L.) inbred lines for seed longevityRevilla Temiño, PedroVelasco Pazos, PabloMalvar Pintos, Rosa AnaCartea González, María ElenaOrdás Pérez, AmandoGermplasm conservationMaizeVariabilityZea mays L.Genotypes conserved in active collections may suffer genetic erosion and modifications. The objective of this work was to investigate changes in germination and vigour in maize (Zea mays L.) inbred lines during cold storage in an active collection. Seeds of 16 maize inbreds produced along 16 years were evaluated for emergence and seedling vigour in a growth chamber. Linear and quadratic regressions of vigour and viability-related traits over seed age were calculated and tested for homogeneity. The seed of five production years of five inbreds that behaved differently in the regression analysis was multiplied in 1998, and original and renewed seed were evaluated in a growth chamber in 1999. Viability and vigour decreased linearly with age for most inbreds, particularly for B84 and EP10, varied at random for a few inbreds, and remained high for EP56 and A295. Aging caused reduction of vigour and loss of viability in most inbreds. There was variability for seed longevity among inbred lines; longevity was highest for inbred EP56. During storage, some seeds of each inbred died, while enduring seeds, when multiplied, produced new seed with enhanced viability and vigour compared to the average seed of the inbred, suggesting natural selection for viability and vigour during storage within inbred lines.Research supported by the Committee for Science and Technology of Spain (Project Cod. AGF2001-3964) and Excma. Diputación Provincial de Pontevedra.MCYTDiputación Provincial de PontevedraPeer reviewedSpringer NatureConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201420142006info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Preprintinfo:eu-repo/semantics/submittedVersionhttp://hdl.handle.net/10261/101593reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1007/s10722-004-5542-1Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1015932026-05-22T06:33:51Z
dc.title.none.fl_str_mv Variability among maize (Zea mays L.) inbred lines for seed longevity
title Variability among maize (Zea mays L.) inbred lines for seed longevity
spellingShingle Variability among maize (Zea mays L.) inbred lines for seed longevity
Revilla Temiño, Pedro
Germplasm conservation
Maize
Variability
Zea mays L.
title_short Variability among maize (Zea mays L.) inbred lines for seed longevity
title_full Variability among maize (Zea mays L.) inbred lines for seed longevity
title_fullStr Variability among maize (Zea mays L.) inbred lines for seed longevity
title_full_unstemmed Variability among maize (Zea mays L.) inbred lines for seed longevity
title_sort Variability among maize (Zea mays L.) inbred lines for seed longevity
dc.creator.none.fl_str_mv Revilla Temiño, Pedro
Velasco Pazos, Pablo
Malvar Pintos, Rosa Ana
Cartea González, María Elena
Ordás Pérez, Amando
author Revilla Temiño, Pedro
author_facet Revilla Temiño, Pedro
Velasco Pazos, Pablo
Malvar Pintos, Rosa Ana
Cartea González, María Elena
Ordás Pérez, Amando
author_role author
author2 Velasco Pazos, Pablo
Malvar Pintos, Rosa Ana
Cartea González, María Elena
Ordás Pérez, Amando
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Germplasm conservation
Maize
Variability
Zea mays L.
topic Germplasm conservation
Maize
Variability
Zea mays L.
description Genotypes conserved in active collections may suffer genetic erosion and modifications. The objective of this work was to investigate changes in germination and vigour in maize (Zea mays L.) inbred lines during cold storage in an active collection. Seeds of 16 maize inbreds produced along 16 years were evaluated for emergence and seedling vigour in a growth chamber. Linear and quadratic regressions of vigour and viability-related traits over seed age were calculated and tested for homogeneity. The seed of five production years of five inbreds that behaved differently in the regression analysis was multiplied in 1998, and original and renewed seed were evaluated in a growth chamber in 1999. Viability and vigour decreased linearly with age for most inbreds, particularly for B84 and EP10, varied at random for a few inbreds, and remained high for EP56 and A295. Aging caused reduction of vigour and loss of viability in most inbreds. There was variability for seed longevity among inbred lines; longevity was highest for inbred EP56. During storage, some seeds of each inbred died, while enduring seeds, when multiplied, produced new seed with enhanced viability and vigour compared to the average seed of the inbred, suggesting natural selection for viability and vigour during storage within inbred lines.
publishDate 2006
dc.date.none.fl_str_mv 2006
2014
2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Preprint
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/101593
url http://hdl.handle.net/10261/101593
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/s10722-004-5542-1
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
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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score 15,811543

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