More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at booting

Autores
Dreccer, M. Fernanda; Wockner, Kimberley B.; Palta, Jairo A.; Mcintyre, C. Lynne; Borgognone, M. Gabriela; Bourgault, Maryse; Reynolds, Matthew; Miralles, Daniel Julio
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
An understanding of processes regulating wheat floret and grain number at higher temperatures is required to better exploit genetic variation. In this study we tested the hypothesis that at higher temperatures, a reduction in floret fertility is associated with a decrease in soluble sugars and this response is exacerbated in genotypes low in water soluble carbohydrates (WSC). Four recombinant inbred lines contrasting for stem WSC were grown at 20/10°C and 11 h photoperiod until terminal spikelet, and then continued in a factorial combination of 20/10°C or 28/14°C with 11 h or 16 h photoperiod until anthesis. Across environments, High WSC lines had more grains per spike associated with more florets per spike. The number of fertile florets was associated with spike biomass at booting and, by extension, with glucose amount, both higher in High WSC lines. At booting, High WSC lines had higher fixed 13C and higher levels of expression of genes involved in photosynthesis and sucrose transport and lower in sucrose degradation compared with Low WSC lines. At higher temperature, the intrinsic rate of floret development rate before booting was slower in High WSC lines. Grain set declined with the intrinsic rate of floret development before booting, with an advantage for High WSC lines at 28/14°C and 16 h. Genotypic and environmental action on floret fertility and grain set was summarised in a model.
Fil: Dreccer, M. Fernanda. CSIRO Plant Industry; Australia
Fil: Wockner, Kimberley B.. CSIRO Plant Industry; Australia
Fil: Palta, Jairo A.. CSIRO Plant Industry; Australia
Fil: Mcintyre, C. Lynne. CSIRO Plant Industry; Australia
Fil: Borgognone, M. Gabriela. Queensland Department of Agriculture, Fisheries and Forestry; Australia
Fil: Bourgault, Maryse. CSIRO Plant Industry; Australia
Fil: Reynolds, Matthew. Centro Internacional de Mejoramiento de Maíz y Trigo; México
Fil: Miralles, Daniel Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Materia
Floret
Temperature
Wheat
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/4347
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/4347
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at bootingDreccer, M. FernandaWockner, Kimberley B.Palta, Jairo A.Mcintyre, C. LynneBorgognone, M. GabrielaBourgault, MaryseReynolds, MatthewMiralles, Daniel JulioFloretTemperatureWheathttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4An understanding of processes regulating wheat floret and grain number at higher temperatures is required to better exploit genetic variation. In this study we tested the hypothesis that at higher temperatures, a reduction in floret fertility is associated with a decrease in soluble sugars and this response is exacerbated in genotypes low in water soluble carbohydrates (WSC). Four recombinant inbred lines contrasting for stem WSC were grown at 20/10°C and 11 h photoperiod until terminal spikelet, and then continued in a factorial combination of 20/10°C or 28/14°C with 11 h or 16 h photoperiod until anthesis. Across environments, High WSC lines had more grains per spike associated with more florets per spike. The number of fertile florets was associated with spike biomass at booting and, by extension, with glucose amount, both higher in High WSC lines. At booting, High WSC lines had higher fixed 13C and higher levels of expression of genes involved in photosynthesis and sucrose transport and lower in sucrose degradation compared with Low WSC lines. At higher temperature, the intrinsic rate of floret development rate before booting was slower in High WSC lines. Grain set declined with the intrinsic rate of floret development before booting, with an advantage for High WSC lines at 28/14°C and 16 h. Genotypic and environmental action on floret fertility and grain set was summarised in a model.Fil: Dreccer, M. Fernanda. CSIRO Plant Industry; AustraliaFil: Wockner, Kimberley B.. CSIRO Plant Industry; AustraliaFil: Palta, Jairo A.. CSIRO Plant Industry; AustraliaFil: Mcintyre, C. Lynne. CSIRO Plant Industry; AustraliaFil: Borgognone, M. Gabriela. Queensland Department of Agriculture, Fisheries and Forestry; AustraliaFil: Bourgault, Maryse. CSIRO Plant Industry; AustraliaFil: Reynolds, Matthew. Centro Internacional de Mejoramiento de Maíz y Trigo; MéxicoFil: Miralles, Daniel Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaCsiro Publishing2014-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/4347Dreccer, M. Fernanda; Wockner, Kimberley B.; Palta, Jairo A.; Mcintyre, C. Lynne; Borgognone, M. Gabriela; et al.; More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at booting; Csiro Publishing; Functional Plant Biology; 41; 5; 1-2014; 482-4951445-4408enginfo:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/paper/FP13232.htminfo:eu-repo/semantics/altIdentifier/doi/10.1071/FP13232info:eu-repo/semantics/altIdentifier/issn/1445-4408info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:45:09Zoai:ri.conicet.gov.ar:11336/4347instacron: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 10:45:09.311CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at booting
title More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at booting
spellingShingle More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at booting
Dreccer, M. Fernanda
Floret
Temperature
Wheat
title_short More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at booting
title_full More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at booting
title_fullStr More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at booting
title_full_unstemmed More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at booting
title_sort More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at booting
dc.creator.none.fl_str_mv Dreccer, M. Fernanda
Wockner, Kimberley B.
Palta, Jairo A.
Mcintyre, C. Lynne
Borgognone, M. Gabriela
Bourgault, Maryse
Reynolds, Matthew
Miralles, Daniel Julio
author Dreccer, M. Fernanda
author_facet Dreccer, M. Fernanda
Wockner, Kimberley B.
Palta, Jairo A.
Mcintyre, C. Lynne
Borgognone, M. Gabriela
Bourgault, Maryse
Reynolds, Matthew
Miralles, Daniel Julio
author_role author
author2 Wockner, Kimberley B.
Palta, Jairo A.
Mcintyre, C. Lynne
Borgognone, M. Gabriela
Bourgault, Maryse
Reynolds, Matthew
Miralles, Daniel Julio
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Floret
Temperature
Wheat
topic Floret
Temperature
Wheat
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv An understanding of processes regulating wheat floret and grain number at higher temperatures is required to better exploit genetic variation. In this study we tested the hypothesis that at higher temperatures, a reduction in floret fertility is associated with a decrease in soluble sugars and this response is exacerbated in genotypes low in water soluble carbohydrates (WSC). Four recombinant inbred lines contrasting for stem WSC were grown at 20/10°C and 11 h photoperiod until terminal spikelet, and then continued in a factorial combination of 20/10°C or 28/14°C with 11 h or 16 h photoperiod until anthesis. Across environments, High WSC lines had more grains per spike associated with more florets per spike. The number of fertile florets was associated with spike biomass at booting and, by extension, with glucose amount, both higher in High WSC lines. At booting, High WSC lines had higher fixed 13C and higher levels of expression of genes involved in photosynthesis and sucrose transport and lower in sucrose degradation compared with Low WSC lines. At higher temperature, the intrinsic rate of floret development rate before booting was slower in High WSC lines. Grain set declined with the intrinsic rate of floret development before booting, with an advantage for High WSC lines at 28/14°C and 16 h. Genotypic and environmental action on floret fertility and grain set was summarised in a model.
Fil: Dreccer, M. Fernanda. CSIRO Plant Industry; Australia
Fil: Wockner, Kimberley B.. CSIRO Plant Industry; Australia
Fil: Palta, Jairo A.. CSIRO Plant Industry; Australia
Fil: Mcintyre, C. Lynne. CSIRO Plant Industry; Australia
Fil: Borgognone, M. Gabriela. Queensland Department of Agriculture, Fisheries and Forestry; Australia
Fil: Bourgault, Maryse. CSIRO Plant Industry; Australia
Fil: Reynolds, Matthew. Centro Internacional de Mejoramiento de Maíz y Trigo; México
Fil: Miralles, Daniel Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
description An understanding of processes regulating wheat floret and grain number at higher temperatures is required to better exploit genetic variation. In this study we tested the hypothesis that at higher temperatures, a reduction in floret fertility is associated with a decrease in soluble sugars and this response is exacerbated in genotypes low in water soluble carbohydrates (WSC). Four recombinant inbred lines contrasting for stem WSC were grown at 20/10°C and 11 h photoperiod until terminal spikelet, and then continued in a factorial combination of 20/10°C or 28/14°C with 11 h or 16 h photoperiod until anthesis. Across environments, High WSC lines had more grains per spike associated with more florets per spike. The number of fertile florets was associated with spike biomass at booting and, by extension, with glucose amount, both higher in High WSC lines. At booting, High WSC lines had higher fixed 13C and higher levels of expression of genes involved in photosynthesis and sucrose transport and lower in sucrose degradation compared with Low WSC lines. At higher temperature, the intrinsic rate of floret development rate before booting was slower in High WSC lines. Grain set declined with the intrinsic rate of floret development before booting, with an advantage for High WSC lines at 28/14°C and 16 h. Genotypic and environmental action on floret fertility and grain set was summarised in a model.
publishDate 2014
dc.date.none.fl_str_mv 2014-01
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/11336/4347
Dreccer, M. Fernanda; Wockner, Kimberley B.; Palta, Jairo A.; Mcintyre, C. Lynne; Borgognone, M. Gabriela; et al.; More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at booting; Csiro Publishing; Functional Plant Biology; 41; 5; 1-2014; 482-495
1445-4408
url http://hdl.handle.net/11336/4347
identifier_str_mv Dreccer, M. Fernanda; Wockner, Kimberley B.; Palta, Jairo A.; Mcintyre, C. Lynne; Borgognone, M. Gabriela; et al.; More fertile florets and grains per spike can be achieved at higher temperature in wheat lines with high spike biomass and sugar content at booting; Csiro Publishing; Functional Plant Biology; 41; 5; 1-2014; 482-495
1445-4408
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/paper/FP13232.htm
info:eu-repo/semantics/altIdentifier/doi/10.1071/FP13232
info:eu-repo/semantics/altIdentifier/issn/1445-4408
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
dc.publisher.none.fl_str_mv Csiro Publishing
publisher.none.fl_str_mv Csiro Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844614490689110016
score 13.070432

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