Mobilizing sorghum genetic diversity: Biochemical and histological‐assisted design of a stem ideotype for biomethane production

Abstract Sorghum currently contributes to the species portfolio that is supporting bioenergy production including anaerobic digestion. Although agro‐morphological ideotypes maximizing biogas production have been recently proposed, there is a crucial need to refine our understanding of the impacts of...

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Autores principales:	Hélène Laurence Thomas, David Pot, Sylvie Jaffuel, Jean‐Luc Verdeil, Christelle Baptiste, Laurent Bonnal, Gilles Trouche, Denis Bastianelli, Eric Latrille, Angélique Berger, Caroline Calatayud, Céline Chauvergne, Virginie Rossard, Patrice Jeanson, Joël Alcouffe, Hélène Carrère
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	anaerobic digestion animal feed combustion genetic diversity heritability ideotype Renewable energy sources TJ807-830 Energy industries. Energy policy. Fuel trade HD9502-9502.5
Acceso en línea:	https://doaj.org/article/29754a47ce0e4a4599e77a0bf06fdb54
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spelling	oai:doaj.org-article:29754a47ce0e4a4599e77a0bf06fdb542021-11-09T02:26:56ZMobilizing sorghum genetic diversity: Biochemical and histological‐assisted design of a stem ideotype for biomethane production1757-17071757-169310.1111/gcbb.12886https://doaj.org/article/29754a47ce0e4a4599e77a0bf06fdb542021-12-01T00:00:00Zhttps://doi.org/10.1111/gcbb.12886https://doaj.org/toc/1757-1693https://doaj.org/toc/1757-1707Abstract Sorghum currently contributes to the species portfolio that is supporting bioenergy production including anaerobic digestion. Although agro‐morphological ideotypes maximizing biogas production have been recently proposed, there is a crucial need to refine our understanding of the impacts of the stem composition and structure on this processing trait in order to ensure genetic gains in the mid to long terms. This study aims to assess the potential of Sorghum bicolor ssp bicolor stem genetic diversity to maximize genetic gains for biogas production and define a biogas stem ideotype. In this context, a panel of 57 genotypes, encompassing most of the stem composition variability available in cultivated sorghum, was characterized over five sites. Simultaneous histological and biochemical characterizations were performed. A high broad sense heritability associated with a moderate genetic variability was detected for stem biogas potential ensuring significant genetic gains in the future. In addition, the development of a stem histological phenotyping pipeline made it possible to describe the genetic diversity available for the internode anatomy and the repartition of key cell wall components. Consistently with previous studies, moderate to high heritability was observed for stem biochemical components. Genetic correlation, hierarchical clustering, and multiple stepwise regression analyses identified soluble sugar content as the first main driver of biogas potential genetic variability. Nevertheless, breeding programs should anticipate that biogas yield improvement will also rely on the monitoring of the cell wall components and their distribution in the stem jointly with the soluble sugar content. According to the assets of sorghum in terms of adaptation to environmental stresses and the present results regarding the identification of stem ideotypes suitable for different value chains, this species will surely play a key role to optimize the economic and environmental sustainability of the agrosystems that are currently facing the effects of climate change.Hélène Laurence ThomasDavid PotSylvie JaffuelJean‐Luc VerdeilChristelle BaptisteLaurent BonnalGilles TroucheDenis BastianelliEric LatrilleAngélique BergerCaroline CalatayudCéline ChauvergneVirginie RossardPatrice JeansonJoël AlcouffeHélène CarrèreWileyarticleanaerobic digestionanimal feedcombustiongenetic diversityheritabilityideotypeRenewable energy sourcesTJ807-830Energy industries. Energy policy. Fuel tradeHD9502-9502.5ENGCB Bioenergy, Vol 13, Iss 12, Pp 1874-1893 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	anaerobic digestion animal feed combustion genetic diversity heritability ideotype Renewable energy sources TJ807-830 Energy industries. Energy policy. Fuel trade HD9502-9502.5
spellingShingle	anaerobic digestion animal feed combustion genetic diversity heritability ideotype Renewable energy sources TJ807-830 Energy industries. Energy policy. Fuel trade HD9502-9502.5 Hélène Laurence Thomas David Pot Sylvie Jaffuel Jean‐Luc Verdeil Christelle Baptiste Laurent Bonnal Gilles Trouche Denis Bastianelli Eric Latrille Angélique Berger Caroline Calatayud Céline Chauvergne Virginie Rossard Patrice Jeanson Joël Alcouffe Hélène Carrère Mobilizing sorghum genetic diversity: Biochemical and histological‐assisted design of a stem ideotype for biomethane production
description	Abstract Sorghum currently contributes to the species portfolio that is supporting bioenergy production including anaerobic digestion. Although agro‐morphological ideotypes maximizing biogas production have been recently proposed, there is a crucial need to refine our understanding of the impacts of the stem composition and structure on this processing trait in order to ensure genetic gains in the mid to long terms. This study aims to assess the potential of Sorghum bicolor ssp bicolor stem genetic diversity to maximize genetic gains for biogas production and define a biogas stem ideotype. In this context, a panel of 57 genotypes, encompassing most of the stem composition variability available in cultivated sorghum, was characterized over five sites. Simultaneous histological and biochemical characterizations were performed. A high broad sense heritability associated with a moderate genetic variability was detected for stem biogas potential ensuring significant genetic gains in the future. In addition, the development of a stem histological phenotyping pipeline made it possible to describe the genetic diversity available for the internode anatomy and the repartition of key cell wall components. Consistently with previous studies, moderate to high heritability was observed for stem biochemical components. Genetic correlation, hierarchical clustering, and multiple stepwise regression analyses identified soluble sugar content as the first main driver of biogas potential genetic variability. Nevertheless, breeding programs should anticipate that biogas yield improvement will also rely on the monitoring of the cell wall components and their distribution in the stem jointly with the soluble sugar content. According to the assets of sorghum in terms of adaptation to environmental stresses and the present results regarding the identification of stem ideotypes suitable for different value chains, this species will surely play a key role to optimize the economic and environmental sustainability of the agrosystems that are currently facing the effects of climate change.
format	article
author	Hélène Laurence Thomas David Pot Sylvie Jaffuel Jean‐Luc Verdeil Christelle Baptiste Laurent Bonnal Gilles Trouche Denis Bastianelli Eric Latrille Angélique Berger Caroline Calatayud Céline Chauvergne Virginie Rossard Patrice Jeanson Joël Alcouffe Hélène Carrère
author_facet	Hélène Laurence Thomas David Pot Sylvie Jaffuel Jean‐Luc Verdeil Christelle Baptiste Laurent Bonnal Gilles Trouche Denis Bastianelli Eric Latrille Angélique Berger Caroline Calatayud Céline Chauvergne Virginie Rossard Patrice Jeanson Joël Alcouffe Hélène Carrère
author_sort	Hélène Laurence Thomas
title	Mobilizing sorghum genetic diversity: Biochemical and histological‐assisted design of a stem ideotype for biomethane production
title_short	Mobilizing sorghum genetic diversity: Biochemical and histological‐assisted design of a stem ideotype for biomethane production
title_full	Mobilizing sorghum genetic diversity: Biochemical and histological‐assisted design of a stem ideotype for biomethane production
title_fullStr	Mobilizing sorghum genetic diversity: Biochemical and histological‐assisted design of a stem ideotype for biomethane production
title_full_unstemmed	Mobilizing sorghum genetic diversity: Biochemical and histological‐assisted design of a stem ideotype for biomethane production
title_sort	mobilizing sorghum genetic diversity: biochemical and histological‐assisted design of a stem ideotype for biomethane production
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/29754a47ce0e4a4599e77a0bf06fdb54
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Mobilizing sorghum genetic diversity: Biochemical and histological‐assisted design of a stem ideotype for biomethane production

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