Photoperiod-sensitivity genes shape floret development in wheat

Autores
Perez Gianmarco, Thomas; Slafer, Gustavo A.; Gonzalez, Fernanda Gabriela
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Lengthening the pre-anthesis period of stem elongation (or late-reproductive phase, LRP) through altering photoperiod sensitivity has been suggested as a potential means to increase the number of fertile florets at anthesis (NFF) in wheat. However, little is known about the effects that the Ppd-1 genes modulating plant response to photoperiod may have on reproductive development. Here, five genotypes with either sensitive (b) or insensitive (a) alleles were grown in chambers under contrasting photoperiods (12 h or 16 h) to assess their effects. The genotypes consisted of the control cultivar Paragon (three Ppd-1b) and four near-isogenic lines of Paragon with Ppd-1a alleles introgressed from: Chinese Spring (Ppd-B1a), GS-100 (Ppd-A1a), Sonora 64 (Ppd-D1a), and Triple Insensitive (three Ppd-1a). Under a 12-h photoperiod, NFF in the genotypes followed the order three Ppd-1b > Ppd-B1a > Ppd-A1a > Ppd-D1a > three Ppd-1a. Under a 16-h photoperiod the differences were milder, but three Ppd-1b still had a greater NFF than the rest. As Ppd-1a alleles shortened the LRP, spikes were lighter and the NFF decreased. The results demonstrated for the first time that Ppd-1a decreases the maximum number of florets initiated through shortening the floret initiation phase, and this partially explained the variations in NFF. The most important impact of Ppd-1a alleles, however, was related to a reduction in survival of floret primordia, which resulted in the lower NFF. These findings reinforce the idea that an increased duration of the LRP, achieved through photoperiod sensitivity, would be useful for increasing wheat yield potential.
EEA Pergamino
Fil: Pérez Gianmarco, Thomas. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Ecofisiología; Argentina. University of Lleida. Department of Crop and Forest Sciences, and AGROTECNIO (Center for Research in Agrotechnology); España. CONICET-UNNOBA. CITNOBA; Argentina
Fil: Slafer, Gustavo A. University of Lleida. Department of Crop and Forest Sciences, and AGROTECNIO (Center for Research in Agrotechnology); España. Institució Catalana de Recerca i Estudis Avançats (ICREA); España
Fil: González, Fernanda G. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento Ecofisiología; Argentina. CONICET-UNNOBA. CITNOBA; Argentina
Fuente
Journal of Experimental Botany 70 (4) : 1339-1348 ( February 2019)
Materia
Trigo
Genes
Fisiología Vegetal
Fotoperiodismo
Floración
Wheat
Plant Physiology
Photoperiod
Flowering
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/4781
Acceder
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oai_identifier_str oai:localhost:20.500.12123/4781
network_acronym_str INTADig
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network_name_str INTA Digital (INTA)
spelling Photoperiod-sensitivity genes shape floret development in wheatPerez Gianmarco, ThomasSlafer, Gustavo A.Gonzalez, Fernanda GabrielaTrigoGenesFisiología VegetalFotoperiodismoFloraciónWheatPlant PhysiologyPhotoperiodFloweringLengthening the pre-anthesis period of stem elongation (or late-reproductive phase, LRP) through altering photoperiod sensitivity has been suggested as a potential means to increase the number of fertile florets at anthesis (NFF) in wheat. However, little is known about the effects that the Ppd-1 genes modulating plant response to photoperiod may have on reproductive development. Here, five genotypes with either sensitive (b) or insensitive (a) alleles were grown in chambers under contrasting photoperiods (12 h or 16 h) to assess their effects. The genotypes consisted of the control cultivar Paragon (three Ppd-1b) and four near-isogenic lines of Paragon with Ppd-1a alleles introgressed from: Chinese Spring (Ppd-B1a), GS-100 (Ppd-A1a), Sonora 64 (Ppd-D1a), and Triple Insensitive (three Ppd-1a). Under a 12-h photoperiod, NFF in the genotypes followed the order three Ppd-1b > Ppd-B1a > Ppd-A1a > Ppd-D1a > three Ppd-1a. Under a 16-h photoperiod the differences were milder, but three Ppd-1b still had a greater NFF than the rest. As Ppd-1a alleles shortened the LRP, spikes were lighter and the NFF decreased. The results demonstrated for the first time that Ppd-1a decreases the maximum number of florets initiated through shortening the floret initiation phase, and this partially explained the variations in NFF. The most important impact of Ppd-1a alleles, however, was related to a reduction in survival of floret primordia, which resulted in the lower NFF. These findings reinforce the idea that an increased duration of the LRP, achieved through photoperiod sensitivity, would be useful for increasing wheat yield potential.EEA PergaminoFil: Pérez Gianmarco, Thomas. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Ecofisiología; Argentina. University of Lleida. Department of Crop and Forest Sciences, and AGROTECNIO (Center for Research in Agrotechnology); España. CONICET-UNNOBA. CITNOBA; ArgentinaFil: Slafer, Gustavo A. University of Lleida. Department of Crop and Forest Sciences, and AGROTECNIO (Center for Research in Agrotechnology); España. Institució Catalana de Recerca i Estudis Avançats (ICREA); EspañaFil: González, Fernanda G. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento Ecofisiología; Argentina. CONICET-UNNOBA. CITNOBA; Argentina2019-03-29T14:08:49Z2019-03-29T14:08:49Z2019-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://academic.oup.com/jxb/article/70/4/1339/5257095http://hdl.handle.net/20.500.12123/47810022-09571460-2431 (digital)https://doi.org/10.1093/jxb/ery449Journal of Experimental Botany 70 (4) : 1339-1348 ( February 2019)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-09-29T13:44:37Zoai:localhost:20.500.12123/4781instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:37.521INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Photoperiod-sensitivity genes shape floret development in wheat
title Photoperiod-sensitivity genes shape floret development in wheat
spellingShingle Photoperiod-sensitivity genes shape floret development in wheat
Perez Gianmarco, Thomas
Trigo
Genes
Fisiología Vegetal
Fotoperiodismo
Floración
Wheat
Plant Physiology
Photoperiod
Flowering
title_short Photoperiod-sensitivity genes shape floret development in wheat
title_full Photoperiod-sensitivity genes shape floret development in wheat
title_fullStr Photoperiod-sensitivity genes shape floret development in wheat
title_full_unstemmed Photoperiod-sensitivity genes shape floret development in wheat
title_sort Photoperiod-sensitivity genes shape floret development in wheat
dc.creator.none.fl_str_mv Perez Gianmarco, Thomas
Slafer, Gustavo A.
Gonzalez, Fernanda Gabriela
author Perez Gianmarco, Thomas
author_facet Perez Gianmarco, Thomas
Slafer, Gustavo A.
Gonzalez, Fernanda Gabriela
author_role author
author2 Slafer, Gustavo A.
Gonzalez, Fernanda Gabriela
author2_role author
author
dc.subject.none.fl_str_mv Trigo
Genes
Fisiología Vegetal
Fotoperiodismo
Floración
Wheat
Plant Physiology
Photoperiod
Flowering
topic Trigo
Genes
Fisiología Vegetal
Fotoperiodismo
Floración
Wheat
Plant Physiology
Photoperiod
Flowering
dc.description.none.fl_txt_mv Lengthening the pre-anthesis period of stem elongation (or late-reproductive phase, LRP) through altering photoperiod sensitivity has been suggested as a potential means to increase the number of fertile florets at anthesis (NFF) in wheat. However, little is known about the effects that the Ppd-1 genes modulating plant response to photoperiod may have on reproductive development. Here, five genotypes with either sensitive (b) or insensitive (a) alleles were grown in chambers under contrasting photoperiods (12 h or 16 h) to assess their effects. The genotypes consisted of the control cultivar Paragon (three Ppd-1b) and four near-isogenic lines of Paragon with Ppd-1a alleles introgressed from: Chinese Spring (Ppd-B1a), GS-100 (Ppd-A1a), Sonora 64 (Ppd-D1a), and Triple Insensitive (three Ppd-1a). Under a 12-h photoperiod, NFF in the genotypes followed the order three Ppd-1b > Ppd-B1a > Ppd-A1a > Ppd-D1a > three Ppd-1a. Under a 16-h photoperiod the differences were milder, but three Ppd-1b still had a greater NFF than the rest. As Ppd-1a alleles shortened the LRP, spikes were lighter and the NFF decreased. The results demonstrated for the first time that Ppd-1a decreases the maximum number of florets initiated through shortening the floret initiation phase, and this partially explained the variations in NFF. The most important impact of Ppd-1a alleles, however, was related to a reduction in survival of floret primordia, which resulted in the lower NFF. These findings reinforce the idea that an increased duration of the LRP, achieved through photoperiod sensitivity, would be useful for increasing wheat yield potential.
EEA Pergamino
Fil: Pérez Gianmarco, Thomas. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Ecofisiología; Argentina. University of Lleida. Department of Crop and Forest Sciences, and AGROTECNIO (Center for Research in Agrotechnology); España. CONICET-UNNOBA. CITNOBA; Argentina
Fil: Slafer, Gustavo A. University of Lleida. Department of Crop and Forest Sciences, and AGROTECNIO (Center for Research in Agrotechnology); España. Institució Catalana de Recerca i Estudis Avançats (ICREA); España
Fil: González, Fernanda G. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento Ecofisiología; Argentina. CONICET-UNNOBA. CITNOBA; Argentina
description Lengthening the pre-anthesis period of stem elongation (or late-reproductive phase, LRP) through altering photoperiod sensitivity has been suggested as a potential means to increase the number of fertile florets at anthesis (NFF) in wheat. However, little is known about the effects that the Ppd-1 genes modulating plant response to photoperiod may have on reproductive development. Here, five genotypes with either sensitive (b) or insensitive (a) alleles were grown in chambers under contrasting photoperiods (12 h or 16 h) to assess their effects. The genotypes consisted of the control cultivar Paragon (three Ppd-1b) and four near-isogenic lines of Paragon with Ppd-1a alleles introgressed from: Chinese Spring (Ppd-B1a), GS-100 (Ppd-A1a), Sonora 64 (Ppd-D1a), and Triple Insensitive (three Ppd-1a). Under a 12-h photoperiod, NFF in the genotypes followed the order three Ppd-1b > Ppd-B1a > Ppd-A1a > Ppd-D1a > three Ppd-1a. Under a 16-h photoperiod the differences were milder, but three Ppd-1b still had a greater NFF than the rest. As Ppd-1a alleles shortened the LRP, spikes were lighter and the NFF decreased. The results demonstrated for the first time that Ppd-1a decreases the maximum number of florets initiated through shortening the floret initiation phase, and this partially explained the variations in NFF. The most important impact of Ppd-1a alleles, however, was related to a reduction in survival of floret primordia, which resulted in the lower NFF. These findings reinforce the idea that an increased duration of the LRP, achieved through photoperiod sensitivity, would be useful for increasing wheat yield potential.
publishDate 2019
dc.date.none.fl_str_mv 2019-03-29T14:08:49Z
2019-03-29T14:08:49Z
2019-02
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 https://academic.oup.com/jxb/article/70/4/1339/5257095
http://hdl.handle.net/20.500.12123/4781
0022-0957
1460-2431 (digital)
https://doi.org/10.1093/jxb/ery449
url https://academic.oup.com/jxb/article/70/4/1339/5257095
http://hdl.handle.net/20.500.12123/4781
https://doi.org/10.1093/jxb/ery449
identifier_str_mv 0022-0957
1460-2431 (digital)
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Journal of Experimental Botany 70 (4) : 1339-1348 ( February 2019)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.559606

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