Sugary1 inbreds to improve sugary enhancer1 hybrids of sweet corn for adaptation to cold areas with short growing seasons

Sweet corn hybrids (Zea mays L.) homozygous for sugary1 (su1) and sugary enhancer1 (se1) mutants (su1se1 hybrids) have a high eating quality, but reduced emergence and poor early vigor, especially under European Atlantic conditions, characterized by cold and humid springs, and a short growing season...

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Autores: Ordás López, Bernardo, Malvar Pintos, Rosa Ana, Soengas, Pilar, Ordás Pérez, Amando, Revilla Temiño, Pedro
Tipo de recurso: artículo
Fecha de publicación:2004
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/32955
Acceso en línea:http://hdl.handle.net/10261/32955
Access Level:acceso abierto
Palabra clave:Sweet corn adaptation
Donors of alleles
Sugary enhancer
Zea mays L.
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spelling Sugary1 inbreds to improve sugary enhancer1 hybrids of sweet corn for adaptation to cold areas with short growing seasonsOrdás López, BernardoMalvar Pintos, Rosa AnaSoengas, PilarOrdás Pérez, AmandoRevilla Temiño, PedroSweet corn adaptationDonors of allelesSugary enhancerZea mays L.Sweet corn hybrids (Zea mays L.) homozygous for sugary1 (su1) and sugary enhancer1 (se1) mutants (su1se1 hybrids) have a high eating quality, but reduced emergence and poor early vigor, especially under European Atlantic conditions, characterized by cold and humid springs, and a short growing season. Elite sweet corn inbreds homozygous for the sugary1 mutant and without the sugary enhancer1 modifier (su1 hybrids) have good emergence and early vigor, so they seem adequate to improve the agronomic value of su1se1 hybrids. Our objective was to identify su1 inbreds as potential donors for improving adaptation of some su1se1 hybrids, that we had found previously to have an outstanding eating quality, to Atlantic conditions. Eight sul inbreds, that we had found in previous works to be well adapted to Atlantic conditions, were chosen. Six different estimators of favorable alleles (μG', PTC, UBND, NI, PNGg, and PNGceg) and GCA were calculated. μG', PTC, NI, and UB-ND give similar estimations for traits related with adaptation when donors are su1 inbreds and receivers are su1se1 hybrids. PNGg and PNGceg give different estimations and, when one of the donors performs very poorly, its estimations are erroneous. According to the estimators, the emergence and early vigor of (lie 12 sulsel hybrids used in this study can he improved with some of the su1 inbreds, and so sweet corn hybrids of high quality adapted to areas with cold, humid springs, and a short growing season can lie developed. Although the inbreds obtained in situ seem to be the more appropriate material where we can search for adaptation alleles, it is necessary to calculate estimators of favorable alleles to confirm the expectations.This research was supported by the National Plan for Research and Development of Spain (Project Cod. AGL2001-3946) and Excma. Diputación Provincial de Pontevedra, SpainPeer reviewedConsiglio per la ricerca e la sperimentazione in agricoltura (Italia)201120112004info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/32955reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://www.maydica.org/articles/49_279.pdfinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/329552026-05-22T06:33:51Z
dc.title.none.fl_str_mv Sugary1 inbreds to improve sugary enhancer1 hybrids of sweet corn for adaptation to cold areas with short growing seasons
title Sugary1 inbreds to improve sugary enhancer1 hybrids of sweet corn for adaptation to cold areas with short growing seasons
spellingShingle Sugary1 inbreds to improve sugary enhancer1 hybrids of sweet corn for adaptation to cold areas with short growing seasons
Ordás López, Bernardo
Sweet corn adaptation
Donors of alleles
Sugary enhancer
Zea mays L.
title_short Sugary1 inbreds to improve sugary enhancer1 hybrids of sweet corn for adaptation to cold areas with short growing seasons
title_full Sugary1 inbreds to improve sugary enhancer1 hybrids of sweet corn for adaptation to cold areas with short growing seasons
title_fullStr Sugary1 inbreds to improve sugary enhancer1 hybrids of sweet corn for adaptation to cold areas with short growing seasons
title_full_unstemmed Sugary1 inbreds to improve sugary enhancer1 hybrids of sweet corn for adaptation to cold areas with short growing seasons
title_sort Sugary1 inbreds to improve sugary enhancer1 hybrids of sweet corn for adaptation to cold areas with short growing seasons
dc.creator.none.fl_str_mv Ordás López, Bernardo
Malvar Pintos, Rosa Ana
Soengas, Pilar
Ordás Pérez, Amando
Revilla Temiño, Pedro
author Ordás López, Bernardo
author_facet Ordás López, Bernardo
Malvar Pintos, Rosa Ana
Soengas, Pilar
Ordás Pérez, Amando
Revilla Temiño, Pedro
author_role author
author2 Malvar Pintos, Rosa Ana
Soengas, Pilar
Ordás Pérez, Amando
Revilla Temiño, Pedro
author2_role author
author
author
author
dc.subject.none.fl_str_mv Sweet corn adaptation
Donors of alleles
Sugary enhancer
Zea mays L.
topic Sweet corn adaptation
Donors of alleles
Sugary enhancer
Zea mays L.
description Sweet corn hybrids (Zea mays L.) homozygous for sugary1 (su1) and sugary enhancer1 (se1) mutants (su1se1 hybrids) have a high eating quality, but reduced emergence and poor early vigor, especially under European Atlantic conditions, characterized by cold and humid springs, and a short growing season. Elite sweet corn inbreds homozygous for the sugary1 mutant and without the sugary enhancer1 modifier (su1 hybrids) have good emergence and early vigor, so they seem adequate to improve the agronomic value of su1se1 hybrids. Our objective was to identify su1 inbreds as potential donors for improving adaptation of some su1se1 hybrids, that we had found previously to have an outstanding eating quality, to Atlantic conditions. Eight sul inbreds, that we had found in previous works to be well adapted to Atlantic conditions, were chosen. Six different estimators of favorable alleles (μG', PTC, UBND, NI, PNGg, and PNGceg) and GCA were calculated. μG', PTC, NI, and UB-ND give similar estimations for traits related with adaptation when donors are su1 inbreds and receivers are su1se1 hybrids. PNGg and PNGceg give different estimations and, when one of the donors performs very poorly, its estimations are erroneous. According to the estimators, the emergence and early vigor of (lie 12 sulsel hybrids used in this study can he improved with some of the su1 inbreds, and so sweet corn hybrids of high quality adapted to areas with cold, humid springs, and a short growing season can lie developed. Although the inbreds obtained in situ seem to be the more appropriate material where we can search for adaptation alleles, it is necessary to calculate estimators of favorable alleles to confirm the expectations.
publishDate 2004
dc.date.none.fl_str_mv 2004
2011
2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/32955
url http://hdl.handle.net/10261/32955
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://www.maydica.org/articles/49_279.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Consiglio per la ricerca e la sperimentazione in agricoltura (Italia)
publisher.none.fl_str_mv Consiglio per la ricerca e la sperimentazione in agricoltura (Italia)
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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