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Carbon isotope composition, water use efficiency, and drought sensitivity are controlled by a common genomic segment in maize

KEY MESSAGE: A genomic segment on maize chromosome 7 influences carbon isotope composition, water use efficiency, and leaf growth sensitivity to drought, possibly by affecting stomatal properties. ABSTRACT: Climate change is expected to decrease water availability in many agricultural production are...

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Autores principales: Avramova, Viktoriya, Meziane, Adel, Bauer, Eva, Blankenagel, Sonja, Eggels, Stella, Gresset, Sebastian, Grill, Erwin, Niculaes, Claudiu, Ouzunova, Milena, Poppenberger, Brigitte, Presterl, Thomas, Rozhon, Wilfried, Welcker, Claude, Yang, Zhenyu, Tardieu, François, Schön, Chris-Carolin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6320357/
https://www.ncbi.nlm.nih.gov/pubmed/30244394
http://dx.doi.org/10.1007/s00122-018-3193-4
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author Avramova, Viktoriya
Meziane, Adel
Bauer, Eva
Blankenagel, Sonja
Eggels, Stella
Gresset, Sebastian
Grill, Erwin
Niculaes, Claudiu
Ouzunova, Milena
Poppenberger, Brigitte
Presterl, Thomas
Rozhon, Wilfried
Welcker, Claude
Yang, Zhenyu
Tardieu, François
Schön, Chris-Carolin
author_facet Avramova, Viktoriya
Meziane, Adel
Bauer, Eva
Blankenagel, Sonja
Eggels, Stella
Gresset, Sebastian
Grill, Erwin
Niculaes, Claudiu
Ouzunova, Milena
Poppenberger, Brigitte
Presterl, Thomas
Rozhon, Wilfried
Welcker, Claude
Yang, Zhenyu
Tardieu, François
Schön, Chris-Carolin
author_sort Avramova, Viktoriya
collection PubMed
description KEY MESSAGE: A genomic segment on maize chromosome 7 influences carbon isotope composition, water use efficiency, and leaf growth sensitivity to drought, possibly by affecting stomatal properties. ABSTRACT: Climate change is expected to decrease water availability in many agricultural production areas around the globe. Therefore, plants with improved ability to grow under water deficit are urgently needed. We combined genetic, phenomic, and physiological approaches to understand the relationship between growth, stomatal conductance, water use efficiency, and carbon isotope composition in maize (Zea mays L.). Using near-isogenic lines derived from a maize introgression library, we analysed the effects of a genomic region previously identified as affecting carbon isotope composition. We show stability of trait expression over several years of field trials and demonstrate in the phenotyping platform Phenodyn that the same genomic region also influences the sensitivity of leaf growth to evaporative demand and soil water potential. Our results suggest that the studied genomic region affecting carbon isotope discrimination also harbours quantitative trait loci playing a role in maize drought sensitivity possibly via stomatal behaviour and development. We propose that the observed phenotypes collectively originate from altered stomatal conductance, presumably via abscisic acid. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s00122-018-3193-4) contains supplementary material, which is available to authorized users.
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spelling pubmed-63203572019-01-14 Carbon isotope composition, water use efficiency, and drought sensitivity are controlled by a common genomic segment in maize Avramova, Viktoriya Meziane, Adel Bauer, Eva Blankenagel, Sonja Eggels, Stella Gresset, Sebastian Grill, Erwin Niculaes, Claudiu Ouzunova, Milena Poppenberger, Brigitte Presterl, Thomas Rozhon, Wilfried Welcker, Claude Yang, Zhenyu Tardieu, François Schön, Chris-Carolin Theor Appl Genet Original Article KEY MESSAGE: A genomic segment on maize chromosome 7 influences carbon isotope composition, water use efficiency, and leaf growth sensitivity to drought, possibly by affecting stomatal properties. ABSTRACT: Climate change is expected to decrease water availability in many agricultural production areas around the globe. Therefore, plants with improved ability to grow under water deficit are urgently needed. We combined genetic, phenomic, and physiological approaches to understand the relationship between growth, stomatal conductance, water use efficiency, and carbon isotope composition in maize (Zea mays L.). Using near-isogenic lines derived from a maize introgression library, we analysed the effects of a genomic region previously identified as affecting carbon isotope composition. We show stability of trait expression over several years of field trials and demonstrate in the phenotyping platform Phenodyn that the same genomic region also influences the sensitivity of leaf growth to evaporative demand and soil water potential. Our results suggest that the studied genomic region affecting carbon isotope discrimination also harbours quantitative trait loci playing a role in maize drought sensitivity possibly via stomatal behaviour and development. We propose that the observed phenotypes collectively originate from altered stomatal conductance, presumably via abscisic acid. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s00122-018-3193-4) contains supplementary material, which is available to authorized users. Springer Berlin Heidelberg 2018-09-22 2019 /pmc/articles/PMC6320357/ /pubmed/30244394 http://dx.doi.org/10.1007/s00122-018-3193-4 Text en © The Author(s) 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Original Article
Avramova, Viktoriya
Meziane, Adel
Bauer, Eva
Blankenagel, Sonja
Eggels, Stella
Gresset, Sebastian
Grill, Erwin
Niculaes, Claudiu
Ouzunova, Milena
Poppenberger, Brigitte
Presterl, Thomas
Rozhon, Wilfried
Welcker, Claude
Yang, Zhenyu
Tardieu, François
Schön, Chris-Carolin
Carbon isotope composition, water use efficiency, and drought sensitivity are controlled by a common genomic segment in maize
title Carbon isotope composition, water use efficiency, and drought sensitivity are controlled by a common genomic segment in maize
title_full Carbon isotope composition, water use efficiency, and drought sensitivity are controlled by a common genomic segment in maize
title_fullStr Carbon isotope composition, water use efficiency, and drought sensitivity are controlled by a common genomic segment in maize
title_full_unstemmed Carbon isotope composition, water use efficiency, and drought sensitivity are controlled by a common genomic segment in maize
title_short Carbon isotope composition, water use efficiency, and drought sensitivity are controlled by a common genomic segment in maize
title_sort carbon isotope composition, water use efficiency, and drought sensitivity are controlled by a common genomic segment in maize
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6320357/
https://www.ncbi.nlm.nih.gov/pubmed/30244394
http://dx.doi.org/10.1007/s00122-018-3193-4
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