Dissecting the genetic control of natural variation in sorghum photosynthetic response to drought stress
- Autores
- Ortiz, Diego; Salas Fernandez, María G.
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Drought stress causes crop yield losses worldwide. Sorghum is a C4 species tolerant to moderate drought stress, and its extensive natural variation for photosynthetic traits under water-limiting conditions can be exploited for developing cultivars with enhanced stress tolerance. The objective of this study was to discover genes/genomic regions that control the sorghum photosynthetic capacity under pre-anthesis water-limiting conditions. We performed a genome-wide association study for seven photosynthetic gas exchange and chlorophyll fluorescence traits during three periods of contrasting soil volumetric water content (VWC): control (30% VWC), drought (15% VWC), and recovery (30% VWC). Water stress was imposed with an automated irrigation system that generated a controlled dry-down period for all plants, to perform an unbiased genotypic comparison. A total of 60 genomic regions were associated with natural variation in one or more photosynthetic traits in a particular treatment or with derived variables. We identified 33 promising candidate genes with predicted functions related to stress signaling, oxidative stress protection, hormonal response to stress, and dehydration protection. Our results provide new knowledge about the natural variation and genetic control of sorghum photosynthetic response to drought with the ultimate goal of improving its adaptation and productivity under water stress scenarios.
EEA Manfredi
Fil: Ortiz, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina
Fil: Salas-Fernandez, María G. Iowa State University. Department of Agronomy; Estados Unidos - Fuente
- Journal of Experimental Botany 73 (10) : 3251-3267. (May 2022)
- Materia
-
Sorgo
Sorghum bicolor
Control Genético
Estrés de Sequia
Rendimiento de Cultivos
Fluorescencia de Clorofila
Sequia
Sorghum
Genetic Control
Drought Stress
Crop Yield
Chlorophyll Fluorescence
Drought
Variación Natural
Natural Variation - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/17803
Ver los metadatos del registro completo
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Dissecting the genetic control of natural variation in sorghum photosynthetic response to drought stressOrtiz, DiegoSalas Fernandez, María G.SorgoSorghum bicolorControl GenéticoEstrés de SequiaRendimiento de CultivosFluorescencia de ClorofilaSequiaSorghumGenetic ControlDrought StressCrop YieldChlorophyll FluorescenceDroughtVariación NaturalNatural VariationDrought stress causes crop yield losses worldwide. Sorghum is a C4 species tolerant to moderate drought stress, and its extensive natural variation for photosynthetic traits under water-limiting conditions can be exploited for developing cultivars with enhanced stress tolerance. The objective of this study was to discover genes/genomic regions that control the sorghum photosynthetic capacity under pre-anthesis water-limiting conditions. We performed a genome-wide association study for seven photosynthetic gas exchange and chlorophyll fluorescence traits during three periods of contrasting soil volumetric water content (VWC): control (30% VWC), drought (15% VWC), and recovery (30% VWC). Water stress was imposed with an automated irrigation system that generated a controlled dry-down period for all plants, to perform an unbiased genotypic comparison. A total of 60 genomic regions were associated with natural variation in one or more photosynthetic traits in a particular treatment or with derived variables. We identified 33 promising candidate genes with predicted functions related to stress signaling, oxidative stress protection, hormonal response to stress, and dehydration protection. Our results provide new knowledge about the natural variation and genetic control of sorghum photosynthetic response to drought with the ultimate goal of improving its adaptation and productivity under water stress scenarios.EEA ManfrediFil: Ortiz, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; ArgentinaFil: Salas-Fernandez, María G. Iowa State University. Department of Agronomy; Estados UnidosOxford Academic Press2024-05-20T10:44:24Z2024-05-20T10:44:24Z2022-05-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/17803https://academic.oup.com/jxb/article/73/10/3251/64293041460-2431 (Online)0022-0957 (Print)https://doi.org/10.1093/jxb/erab502Journal of Experimental Botany 73 (10) : 3251-3267. (May 2022)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)2025-09-29T13:46:32Zoai:localhost:20.500.12123/17803instacron: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 13:46:33.065INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
dc.title.none.fl_str_mv |
Dissecting the genetic control of natural variation in sorghum photosynthetic response to drought stress |
title |
Dissecting the genetic control of natural variation in sorghum photosynthetic response to drought stress |
spellingShingle |
Dissecting the genetic control of natural variation in sorghum photosynthetic response to drought stress Ortiz, Diego Sorgo Sorghum bicolor Control Genético Estrés de Sequia Rendimiento de Cultivos Fluorescencia de Clorofila Sequia Sorghum Genetic Control Drought Stress Crop Yield Chlorophyll Fluorescence Drought Variación Natural Natural Variation |
title_short |
Dissecting the genetic control of natural variation in sorghum photosynthetic response to drought stress |
title_full |
Dissecting the genetic control of natural variation in sorghum photosynthetic response to drought stress |
title_fullStr |
Dissecting the genetic control of natural variation in sorghum photosynthetic response to drought stress |
title_full_unstemmed |
Dissecting the genetic control of natural variation in sorghum photosynthetic response to drought stress |
title_sort |
Dissecting the genetic control of natural variation in sorghum photosynthetic response to drought stress |
dc.creator.none.fl_str_mv |
Ortiz, Diego Salas Fernandez, María G. |
author |
Ortiz, Diego |
author_facet |
Ortiz, Diego Salas Fernandez, María G. |
author_role |
author |
author2 |
Salas Fernandez, María G. |
author2_role |
author |
dc.subject.none.fl_str_mv |
Sorgo Sorghum bicolor Control Genético Estrés de Sequia Rendimiento de Cultivos Fluorescencia de Clorofila Sequia Sorghum Genetic Control Drought Stress Crop Yield Chlorophyll Fluorescence Drought Variación Natural Natural Variation |
topic |
Sorgo Sorghum bicolor Control Genético Estrés de Sequia Rendimiento de Cultivos Fluorescencia de Clorofila Sequia Sorghum Genetic Control Drought Stress Crop Yield Chlorophyll Fluorescence Drought Variación Natural Natural Variation |
dc.description.none.fl_txt_mv |
Drought stress causes crop yield losses worldwide. Sorghum is a C4 species tolerant to moderate drought stress, and its extensive natural variation for photosynthetic traits under water-limiting conditions can be exploited for developing cultivars with enhanced stress tolerance. The objective of this study was to discover genes/genomic regions that control the sorghum photosynthetic capacity under pre-anthesis water-limiting conditions. We performed a genome-wide association study for seven photosynthetic gas exchange and chlorophyll fluorescence traits during three periods of contrasting soil volumetric water content (VWC): control (30% VWC), drought (15% VWC), and recovery (30% VWC). Water stress was imposed with an automated irrigation system that generated a controlled dry-down period for all plants, to perform an unbiased genotypic comparison. A total of 60 genomic regions were associated with natural variation in one or more photosynthetic traits in a particular treatment or with derived variables. We identified 33 promising candidate genes with predicted functions related to stress signaling, oxidative stress protection, hormonal response to stress, and dehydration protection. Our results provide new knowledge about the natural variation and genetic control of sorghum photosynthetic response to drought with the ultimate goal of improving its adaptation and productivity under water stress scenarios. EEA Manfredi Fil: Ortiz, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina Fil: Salas-Fernandez, María G. Iowa State University. Department of Agronomy; Estados Unidos |
description |
Drought stress causes crop yield losses worldwide. Sorghum is a C4 species tolerant to moderate drought stress, and its extensive natural variation for photosynthetic traits under water-limiting conditions can be exploited for developing cultivars with enhanced stress tolerance. The objective of this study was to discover genes/genomic regions that control the sorghum photosynthetic capacity under pre-anthesis water-limiting conditions. We performed a genome-wide association study for seven photosynthetic gas exchange and chlorophyll fluorescence traits during three periods of contrasting soil volumetric water content (VWC): control (30% VWC), drought (15% VWC), and recovery (30% VWC). Water stress was imposed with an automated irrigation system that generated a controlled dry-down period for all plants, to perform an unbiased genotypic comparison. A total of 60 genomic regions were associated with natural variation in one or more photosynthetic traits in a particular treatment or with derived variables. We identified 33 promising candidate genes with predicted functions related to stress signaling, oxidative stress protection, hormonal response to stress, and dehydration protection. Our results provide new knowledge about the natural variation and genetic control of sorghum photosynthetic response to drought with the ultimate goal of improving its adaptation and productivity under water stress scenarios. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-05-23 2024-05-20T10:44:24Z 2024-05-20T10:44:24Z |
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/20.500.12123/17803 https://academic.oup.com/jxb/article/73/10/3251/6429304 1460-2431 (Online) 0022-0957 (Print) https://doi.org/10.1093/jxb/erab502 |
url |
http://hdl.handle.net/20.500.12123/17803 https://academic.oup.com/jxb/article/73/10/3251/6429304 https://doi.org/10.1093/jxb/erab502 |
identifier_str_mv |
1460-2431 (Online) 0022-0957 (Print) |
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 Academic Press |
publisher.none.fl_str_mv |
Oxford Academic Press |
dc.source.none.fl_str_mv |
Journal of Experimental Botany 73 (10) : 3251-3267. (May 2022) 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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12.559606 |