Genetic architecture of photosynthesis in Sorghum bicolor under non-stress and cold stress conditions

Autores
Ortiz, Diego; Hu, Jieyun; Salas Fernandez, Maria G.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Sorghum (Sorghum bicolor L. Moench) is a C4 species sensitive to the cold spring conditions that occur at northern latitudes, especially when coupled with excessive light, and that greatly affect the photosynthetic rate. The objective of this study was to discover genes/genomic regions that control the capacity to cope with excessive energy under low temperature conditions during the vegetative growth period. A genome-wide association study (GWAS) was conducted for seven photosynthetic gas exchange and chlorophyll fluorescence traits under three consecutive temperature treatments: control (28 °C/24 °C), cold (15 °C/15 °C), and recovery (28 °C/24 °C). Cold stress significantly reduced the rate of photosynthetic CO2 uptake of sorghum plants, and a total of 143 unique genomic regions were discovered associated with at least one trait in a particular treatment or with derived variables. Ten regions on chromosomes 3, 4, 6, 7, and 8 that harbor multiple significant markers in linkage disequilibrium (LD) were consistently identified in gas exchange and chlorophyll fluorescence traits. Several candidate genes within those intervals have predicted functions related to carotenoids, phytohormones, thioredoxin, components of PSI, and antioxidants. These regions represent the most promising results for future validation and with potential application for the improvement of crop productivity under cold stress.
EEA Manfredi
Fil: Ortiz, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina. Iowa State University. Department of Agronomy; Estados Unidos
Fil: Hu, Jieyun. Iowa State University. Department of Agronomy; Estados Unidos
Fil: Salas-Fernandez, María G. Iowa State University. Department of Agronomy; Estados Unidos
Fuente
Journal of Experimental Botany 68 (16) : 4545-4557. (October 2017)
Materia
Chlorophyll Fluorescence
Cold
Photosynthesis
Cold Stress
Fluorescencia de Clorofila
Frio
Sorghum bicolor
Fotosíntesis
Estrés de Frío
Photoprotection
Crop Productivity
Fotoprotección
Productividad de Cultivos
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:20.500.12123/18189
Acceder
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oai_identifier_str oai:localhost:20.500.12123/18189
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network_name_str INTA Digital (INTA)
spelling Genetic architecture of photosynthesis in Sorghum bicolor under non-stress and cold stress conditionsOrtiz, DiegoHu, JieyunSalas Fernandez, Maria G.Chlorophyll FluorescenceColdPhotosynthesisCold StressFluorescencia de ClorofilaFrioSorghum bicolorFotosíntesisEstrés de FríoPhotoprotectionCrop ProductivityFotoprotecciónProductividad de CultivosSorghum (Sorghum bicolor L. Moench) is a C4 species sensitive to the cold spring conditions that occur at northern latitudes, especially when coupled with excessive light, and that greatly affect the photosynthetic rate. The objective of this study was to discover genes/genomic regions that control the capacity to cope with excessive energy under low temperature conditions during the vegetative growth period. A genome-wide association study (GWAS) was conducted for seven photosynthetic gas exchange and chlorophyll fluorescence traits under three consecutive temperature treatments: control (28 °C/24 °C), cold (15 °C/15 °C), and recovery (28 °C/24 °C). Cold stress significantly reduced the rate of photosynthetic CO2 uptake of sorghum plants, and a total of 143 unique genomic regions were discovered associated with at least one trait in a particular treatment or with derived variables. Ten regions on chromosomes 3, 4, 6, 7, and 8 that harbor multiple significant markers in linkage disequilibrium (LD) were consistently identified in gas exchange and chlorophyll fluorescence traits. Several candidate genes within those intervals have predicted functions related to carotenoids, phytohormones, thioredoxin, components of PSI, and antioxidants. These regions represent the most promising results for future validation and with potential application for the improvement of crop productivity under cold stress.EEA ManfrediFil: Ortiz, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina. Iowa State University. Department of Agronomy; Estados UnidosFil: Hu, Jieyun. Iowa State University. Department of Agronomy; Estados UnidosFil: Salas-Fernandez, María G. Iowa State University. Department of Agronomy; Estados UnidosOxford University Press2024-06-18T10:11:51Z2024-06-18T10:11:51Z2017-10-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/18189https://academic.oup.com/jxb/article/68/16/4545/40847150022-0957 (Print)1460-2431 (online)https://doi.org/10.1093/jxb/erx276Journal of Experimental Botany 68 (16) : 4545-4557. (October 2017)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)2025-09-29T13:46:36Zoai:localhost:20.500.12123/18189instacron: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 13:46:36.795INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Genetic architecture of photosynthesis in Sorghum bicolor under non-stress and cold stress conditions
title Genetic architecture of photosynthesis in Sorghum bicolor under non-stress and cold stress conditions
spellingShingle Genetic architecture of photosynthesis in Sorghum bicolor under non-stress and cold stress conditions
Ortiz, Diego
Chlorophyll Fluorescence
Cold
Photosynthesis
Cold Stress
Fluorescencia de Clorofila
Frio
Sorghum bicolor
Fotosíntesis
Estrés de Frío
Photoprotection
Crop Productivity
Fotoprotección
Productividad de Cultivos
title_short Genetic architecture of photosynthesis in Sorghum bicolor under non-stress and cold stress conditions
title_full Genetic architecture of photosynthesis in Sorghum bicolor under non-stress and cold stress conditions
title_fullStr Genetic architecture of photosynthesis in Sorghum bicolor under non-stress and cold stress conditions
title_full_unstemmed Genetic architecture of photosynthesis in Sorghum bicolor under non-stress and cold stress conditions
title_sort Genetic architecture of photosynthesis in Sorghum bicolor under non-stress and cold stress conditions
dc.creator.none.fl_str_mv Ortiz, Diego
Hu, Jieyun
Salas Fernandez, Maria G.
author Ortiz, Diego
author_facet Ortiz, Diego
Hu, Jieyun
Salas Fernandez, Maria G.
author_role author
author2 Hu, Jieyun
Salas Fernandez, Maria G.
author2_role author
author
dc.subject.none.fl_str_mv Chlorophyll Fluorescence
Cold
Photosynthesis
Cold Stress
Fluorescencia de Clorofila
Frio
Sorghum bicolor
Fotosíntesis
Estrés de Frío
Photoprotection
Crop Productivity
Fotoprotección
Productividad de Cultivos
topic Chlorophyll Fluorescence
Cold
Photosynthesis
Cold Stress
Fluorescencia de Clorofila
Frio
Sorghum bicolor
Fotosíntesis
Estrés de Frío
Photoprotection
Crop Productivity
Fotoprotección
Productividad de Cultivos
dc.description.none.fl_txt_mv Sorghum (Sorghum bicolor L. Moench) is a C4 species sensitive to the cold spring conditions that occur at northern latitudes, especially when coupled with excessive light, and that greatly affect the photosynthetic rate. The objective of this study was to discover genes/genomic regions that control the capacity to cope with excessive energy under low temperature conditions during the vegetative growth period. A genome-wide association study (GWAS) was conducted for seven photosynthetic gas exchange and chlorophyll fluorescence traits under three consecutive temperature treatments: control (28 °C/24 °C), cold (15 °C/15 °C), and recovery (28 °C/24 °C). Cold stress significantly reduced the rate of photosynthetic CO2 uptake of sorghum plants, and a total of 143 unique genomic regions were discovered associated with at least one trait in a particular treatment or with derived variables. Ten regions on chromosomes 3, 4, 6, 7, and 8 that harbor multiple significant markers in linkage disequilibrium (LD) were consistently identified in gas exchange and chlorophyll fluorescence traits. Several candidate genes within those intervals have predicted functions related to carotenoids, phytohormones, thioredoxin, components of PSI, and antioxidants. These regions represent the most promising results for future validation and with potential application for the improvement of crop productivity under cold stress.
EEA Manfredi
Fil: Ortiz, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina. Iowa State University. Department of Agronomy; Estados Unidos
Fil: Hu, Jieyun. Iowa State University. Department of Agronomy; Estados Unidos
Fil: Salas-Fernandez, María G. Iowa State University. Department of Agronomy; Estados Unidos
description Sorghum (Sorghum bicolor L. Moench) is a C4 species sensitive to the cold spring conditions that occur at northern latitudes, especially when coupled with excessive light, and that greatly affect the photosynthetic rate. The objective of this study was to discover genes/genomic regions that control the capacity to cope with excessive energy under low temperature conditions during the vegetative growth period. A genome-wide association study (GWAS) was conducted for seven photosynthetic gas exchange and chlorophyll fluorescence traits under three consecutive temperature treatments: control (28 °C/24 °C), cold (15 °C/15 °C), and recovery (28 °C/24 °C). Cold stress significantly reduced the rate of photosynthetic CO2 uptake of sorghum plants, and a total of 143 unique genomic regions were discovered associated with at least one trait in a particular treatment or with derived variables. Ten regions on chromosomes 3, 4, 6, 7, and 8 that harbor multiple significant markers in linkage disequilibrium (LD) were consistently identified in gas exchange and chlorophyll fluorescence traits. Several candidate genes within those intervals have predicted functions related to carotenoids, phytohormones, thioredoxin, components of PSI, and antioxidants. These regions represent the most promising results for future validation and with potential application for the improvement of crop productivity under cold stress.
publishDate 2017
dc.date.none.fl_str_mv 2017-10-03
2024-06-18T10:11:51Z
2024-06-18T10:11:51Z
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/20.500.12123/18189
https://academic.oup.com/jxb/article/68/16/4545/4084715
0022-0957 (Print)
1460-2431 (online)
https://doi.org/10.1093/jxb/erx276
url http://hdl.handle.net/20.500.12123/18189
https://academic.oup.com/jxb/article/68/16/4545/4084715
https://doi.org/10.1093/jxb/erx276
identifier_str_mv 0022-0957 (Print)
1460-2431 (online)
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.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv Journal of Experimental Botany 68 (16) : 4545-4557. (October 2017)
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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