Biomass allocation patterns are linked to genotypic differences in whole-plant transpiration efficiency in sunflower

Autores
Velazquez, Luciano; Alberdi, Ignacio; Paz, Cosme Daniel; Aguirrezabal, Luis; Pereyra Irujo, Gustavo Adrian
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Increased transpiration efficiency (the ratio of biomass to water transpired, TE) could lead to increased drought tolerance under some water deficit scenarios. Intrinsic (i.e., leaf-level) TE is usually considered as the primary source of variation in whole-plant TE, but empirical data usually contradict this assumption. Sunflower has a significant variability in TE, but a better knowledge of the effect of leaf and plant-level traits could be helpful to obtain more efficient genotypes for water use. The objective of this study was, therefore, to assess if genotypic variation in whole-plant TE is better related to leaf- or plant-level traits. Three experiments were conducted, aimed at verifying the existence of variability in whole-plant TE and whole-plant and leaf-level traits, and to assess their correlation. Sunflower public inbred lines and a segregating population of recombinant inbred lines were grown under controlled conditions and subjected to well-watered and water-deficit treatments. Significant genotypic variation was found for TE and related traits. These differences in whole-plant transpiration efficiency, both between genotypes and between plants within each genotype, showed no association to leaf-level traits, but were significantly and negatively correlated to biomass allocation to leaves and to the ratio of leaf area to total biomass. These associations are likely of a physiological origin, and not only a consequence of genetic linkage in the studied population. These results suggest that genotypic variation for biomass allocation could be potentially exploited as a source for increased transpiration efficiency in sunflower breeding programmes. It is also suggested that phenotyping for TE in this species should not be restricted to leaf-level measurements, but also include measurements of plant-level traits, especially those related to biomass allocation between photosynthetic and non-photosynthetic organs.
EEA Balcarce
Fil: Velazquez, Luciano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de Fisiología Vegetal; Argentina
Fil: Velazquez, Luciano. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; Argentina
Fil: Alberdi, Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de Fisiología Vegetal; Argentina
Fil: Alberdi, Ignacio. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; Argentina
Fil: Paz, Cosme Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de Fisiología Vegetal; Argentina
Fil: Paz, Cosme Daniel. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; Argentina
Fil: Aguirrezábal, Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de FisiologíaVegetal; Argentina
Fil: Aguirrezábal, Luis. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; Argentina
Fil: Aguirrezábal, Luis: Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina
Fil: Pereyra Irujo, Gustavo Adrian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de Fisiología Animal; Argentina
Fil: Pereyra Irujo, Gustavo Adrian. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; Argentina
Fuente
Frontiers in Plant Science 8 : 1-12 ( november 2017)
Materia
Helianthus annuus
Girasol
Biomasa
Tasa de Transpiración
Sunflowers
Biomass
Transpiration Ratio
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:20.500.12123/27025
Acceder
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oai_identifier_str oai:localhost:20.500.12123/27025
network_acronym_str INTADig
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network_name_str INTA Digital (INTA)
spelling Biomass allocation patterns are linked to genotypic differences in whole-plant transpiration efficiency in sunflowerVelazquez, LucianoAlberdi, IgnacioPaz, Cosme DanielAguirrezabal, LuisPereyra Irujo, Gustavo AdrianHelianthus annuusGirasolBiomasaTasa de TranspiraciónSunflowersBiomassTranspiration RatioIncreased transpiration efficiency (the ratio of biomass to water transpired, TE) could lead to increased drought tolerance under some water deficit scenarios. Intrinsic (i.e., leaf-level) TE is usually considered as the primary source of variation in whole-plant TE, but empirical data usually contradict this assumption. Sunflower has a significant variability in TE, but a better knowledge of the effect of leaf and plant-level traits could be helpful to obtain more efficient genotypes for water use. The objective of this study was, therefore, to assess if genotypic variation in whole-plant TE is better related to leaf- or plant-level traits. Three experiments were conducted, aimed at verifying the existence of variability in whole-plant TE and whole-plant and leaf-level traits, and to assess their correlation. Sunflower public inbred lines and a segregating population of recombinant inbred lines were grown under controlled conditions and subjected to well-watered and water-deficit treatments. Significant genotypic variation was found for TE and related traits. These differences in whole-plant transpiration efficiency, both between genotypes and between plants within each genotype, showed no association to leaf-level traits, but were significantly and negatively correlated to biomass allocation to leaves and to the ratio of leaf area to total biomass. These associations are likely of a physiological origin, and not only a consequence of genetic linkage in the studied population. These results suggest that genotypic variation for biomass allocation could be potentially exploited as a source for increased transpiration efficiency in sunflower breeding programmes. It is also suggested that phenotyping for TE in this species should not be restricted to leaf-level measurements, but also include measurements of plant-level traits, especially those related to biomass allocation between photosynthetic and non-photosynthetic organs.EEA BalcarceFil: Velazquez, Luciano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de Fisiología Vegetal; ArgentinaFil: Velazquez, Luciano. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; ArgentinaFil: Alberdi, Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de Fisiología Vegetal; ArgentinaFil: Alberdi, Ignacio. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; ArgentinaFil: Paz, Cosme Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de Fisiología Vegetal; ArgentinaFil: Paz, Cosme Daniel. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; ArgentinaFil: Aguirrezábal, Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de FisiologíaVegetal; ArgentinaFil: Aguirrezábal, Luis. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; ArgentinaFil: Aguirrezábal, Luis: Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); ArgentinaFil: Pereyra Irujo, Gustavo Adrian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de Fisiología Animal; ArgentinaFil: Pereyra Irujo, Gustavo Adrian. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; ArgentinaFrontiers Media2026-07-15T14:43:50Z2026-07-15T14:43:50Z2017-11-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/27025https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2017.01976/full1664-462Xhttps://doi.org/10.3389/fpls.2017.01976Frontiers in Plant Science 8 : 1-12 ( november 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)2026-09-24T11:43:27Zoai:localhost:20.500.12123/27025instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2026-09-24 11:43:28.898INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Biomass allocation patterns are linked to genotypic differences in whole-plant transpiration efficiency in sunflower
title Biomass allocation patterns are linked to genotypic differences in whole-plant transpiration efficiency in sunflower
spellingShingle Biomass allocation patterns are linked to genotypic differences in whole-plant transpiration efficiency in sunflower
Velazquez, Luciano
Helianthus annuus
Girasol
Biomasa
Tasa de Transpiración
Sunflowers
Biomass
Transpiration Ratio
title_short Biomass allocation patterns are linked to genotypic differences in whole-plant transpiration efficiency in sunflower
title_full Biomass allocation patterns are linked to genotypic differences in whole-plant transpiration efficiency in sunflower
title_fullStr Biomass allocation patterns are linked to genotypic differences in whole-plant transpiration efficiency in sunflower
title_full_unstemmed Biomass allocation patterns are linked to genotypic differences in whole-plant transpiration efficiency in sunflower
title_sort Biomass allocation patterns are linked to genotypic differences in whole-plant transpiration efficiency in sunflower
dc.creator.none.fl_str_mv Velazquez, Luciano
Alberdi, Ignacio
Paz, Cosme Daniel
Aguirrezabal, Luis
Pereyra Irujo, Gustavo Adrian
author Velazquez, Luciano
author_facet Velazquez, Luciano
Alberdi, Ignacio
Paz, Cosme Daniel
Aguirrezabal, Luis
Pereyra Irujo, Gustavo Adrian
author_role author
author2 Alberdi, Ignacio
Paz, Cosme Daniel
Aguirrezabal, Luis
Pereyra Irujo, Gustavo Adrian
author2_role author
author
author
author
dc.subject.none.fl_str_mv Helianthus annuus
Girasol
Biomasa
Tasa de Transpiración
Sunflowers
Biomass
Transpiration Ratio
topic Helianthus annuus
Girasol
Biomasa
Tasa de Transpiración
Sunflowers
Biomass
Transpiration Ratio
dc.description.none.fl_txt_mv Increased transpiration efficiency (the ratio of biomass to water transpired, TE) could lead to increased drought tolerance under some water deficit scenarios. Intrinsic (i.e., leaf-level) TE is usually considered as the primary source of variation in whole-plant TE, but empirical data usually contradict this assumption. Sunflower has a significant variability in TE, but a better knowledge of the effect of leaf and plant-level traits could be helpful to obtain more efficient genotypes for water use. The objective of this study was, therefore, to assess if genotypic variation in whole-plant TE is better related to leaf- or plant-level traits. Three experiments were conducted, aimed at verifying the existence of variability in whole-plant TE and whole-plant and leaf-level traits, and to assess their correlation. Sunflower public inbred lines and a segregating population of recombinant inbred lines were grown under controlled conditions and subjected to well-watered and water-deficit treatments. Significant genotypic variation was found for TE and related traits. These differences in whole-plant transpiration efficiency, both between genotypes and between plants within each genotype, showed no association to leaf-level traits, but were significantly and negatively correlated to biomass allocation to leaves and to the ratio of leaf area to total biomass. These associations are likely of a physiological origin, and not only a consequence of genetic linkage in the studied population. These results suggest that genotypic variation for biomass allocation could be potentially exploited as a source for increased transpiration efficiency in sunflower breeding programmes. It is also suggested that phenotyping for TE in this species should not be restricted to leaf-level measurements, but also include measurements of plant-level traits, especially those related to biomass allocation between photosynthetic and non-photosynthetic organs.
EEA Balcarce
Fil: Velazquez, Luciano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de Fisiología Vegetal; Argentina
Fil: Velazquez, Luciano. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; Argentina
Fil: Alberdi, Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de Fisiología Vegetal; Argentina
Fil: Alberdi, Ignacio. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; Argentina
Fil: Paz, Cosme Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de Fisiología Vegetal; Argentina
Fil: Paz, Cosme Daniel. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; Argentina
Fil: Aguirrezábal, Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de FisiologíaVegetal; Argentina
Fil: Aguirrezábal, Luis. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; Argentina
Fil: Aguirrezábal, Luis: Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina
Fil: Pereyra Irujo, Gustavo Adrian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Laboratorio de Fisiología Animal; Argentina
Fil: Pereyra Irujo, Gustavo Adrian. Universidad Nacional de Mar del Plata (UNMdP). Facultad de Ciencias Agrarias; Argentina
description Increased transpiration efficiency (the ratio of biomass to water transpired, TE) could lead to increased drought tolerance under some water deficit scenarios. Intrinsic (i.e., leaf-level) TE is usually considered as the primary source of variation in whole-plant TE, but empirical data usually contradict this assumption. Sunflower has a significant variability in TE, but a better knowledge of the effect of leaf and plant-level traits could be helpful to obtain more efficient genotypes for water use. The objective of this study was, therefore, to assess if genotypic variation in whole-plant TE is better related to leaf- or plant-level traits. Three experiments were conducted, aimed at verifying the existence of variability in whole-plant TE and whole-plant and leaf-level traits, and to assess their correlation. Sunflower public inbred lines and a segregating population of recombinant inbred lines were grown under controlled conditions and subjected to well-watered and water-deficit treatments. Significant genotypic variation was found for TE and related traits. These differences in whole-plant transpiration efficiency, both between genotypes and between plants within each genotype, showed no association to leaf-level traits, but were significantly and negatively correlated to biomass allocation to leaves and to the ratio of leaf area to total biomass. These associations are likely of a physiological origin, and not only a consequence of genetic linkage in the studied population. These results suggest that genotypic variation for biomass allocation could be potentially exploited as a source for increased transpiration efficiency in sunflower breeding programmes. It is also suggested that phenotyping for TE in this species should not be restricted to leaf-level measurements, but also include measurements of plant-level traits, especially those related to biomass allocation between photosynthetic and non-photosynthetic organs.
publishDate 2017
dc.date.none.fl_str_mv 2017-11-17
2026-07-15T14:43:50Z
2026-07-15T14:43:50Z
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/20.500.12123/27025
https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2017.01976/full
1664-462X
https://doi.org/10.3389/fpls.2017.01976
url http://hdl.handle.net/20.500.12123/27025
https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2017.01976/full
https://doi.org/10.3389/fpls.2017.01976
identifier_str_mv 1664-462X
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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 Frontiers Media
publisher.none.fl_str_mv Frontiers Media
dc.source.none.fl_str_mv Frontiers in Plant Science 8 : 1-12 ( november 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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