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1. The sugarless grape trait characterised by single berry phenotyping

Author

Antoine Bigard, Charles Romieu, Hernán Ojeda, and Laurent Jean-Marie Torregrosa

Subjects
fleshy fruit, fruit development, ripening, sugars, acidity, climate warming, Agriculture, Botany, QK1-989
Abstract

In grape production, the selection of varieties well-adapted to climate fluctuations, especially warming, is based on achieving a balance between fruit sugars and acidity. In recent decades, temperature has been constantly rising during ripening causing excessive sugar concentrations and insufficient acidity in wine grapes in the warmest regions. There is thus an increasing interest in breeding new cultivars able to ripen at lower sugar concentration while preserving fruit acidity. However, the phenotyping of berry composition challenges both methodological and conceptual issues. Indeed, most authors predetermine either average harvest date, ripening duration, thermal time or even the hexoses concentration threshold itself to compare accessions at a hopefully similar ripe stage. In this study, we phenotyped the fruit development and composition of 6 genotypes, including 3 new disease-tolerant varieties known to produce wines with low alcoholic contents. The study was performed at single berry level from the end of the green growth stage to the end of phloem unloading, when water and solute contents reach a maximum per berry. The results confirm that sugarless genotypes achieve fruit ripening with 20-30 % less hexoses than the classical varieties, Grenache N and Merlot N, without impacting berry growth, total acidity or cation accumulation. The sugarless genotypes displayed a higher malic acid/tartaric acid balance than the other genotypes, but similar sucrose/H+ exchanges at the onset of ripening. Data suggest that the sugarless phenotype results from a specific plasticity in the relationship between growth and the turgor imposed by organic acid accumulation and sugar loading. This opens interesting perspectives for the understanding of the mechanism of grapevine berry growth and for breeding varieties that will cope better with climate warming.

Published
2022
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2. Vitis vinifera L. Diversity for Cations and Acidity Is Suitable for Breeding Fruits Coping With Climate Warming

Author

Antoine Bigard, Charles Romieu, Yannick Sire, and Laurent Torregrosa

Subjects
fleshy fruit, grape, cations, acidity, fruit quality, climate changes, Plant culture, SB1-1110
Abstract

The selection of grapevine varieties is considered to be the smartest strategy for adapting the viticulture to climate warming. Present knowledge of the diversity of grape solutes known to be influenced by temperature is too limited to perform genetic improvement strategies. This study aimed to characterize the diversity for major cations (K+, Mg2+, Ca2+, NH4+) of the Vitis vinifera fruit and their effect on acidity. Two developmental stages were targeted: the end of green growth, when organic acids reach a maximum, and the physiological ripe stage defined by the stopping of solutes and water import at the maximum volume of the berry. Twelve varieties and 21 microvines from the same segregating population were selected from preliminary phenotyping. The concentration of cations depended on the stage of fruit development, the genotype and the environment with GxE effects. In the ripe grape, K+ concentration varied from 28 to 57 mmol.L-1 with other cations being less concentrated. Combined with the variation in organic acids, cation concentration diversity resulted in titratable acidity of the ripe fruit ranging from 38 to 215 meq.L-1. These results open new perspectives for the selection of varieties to mitigate the adverse effects of climate warming on grape quality.

Published
2020
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3. Developmental, molecular and genetic studies on grapevine response to temperature open breeding strategies for adaptation to warming

Author

Laurent Torregrosa, Antoine Bigard, Agnes Doligez, David Lecourieux, Markus Rienth, Nathalie Luchaire, Philippe Pieri, Ratthaphon Chatbanyong, Rezth Shahood, Marc Farnos, Catherine Roux, Angélique Adiveze, Jérémie Pillet, Yannick Sire, Emmanuelle Zumstein, Mélanie Veyret, Loic Le Cunff, Fatma Lecourieux, Nicolas Saurin, Bertrand Muller, Hernán Ojeda, Cléa Houel, Jean-Pierre Péros, Patrice This, Anne Pellegrino, and Charles Romieu

Subjects
global warming, temperature, grapevine, biology, adaptation, genetic improvement, Agriculture, Botany, QK1-989
Abstract

Aim: In the long term, genetic improvement is one of the major strategies to support sustainable wine production in a changing climate. Over the past 5 years, we have developed an interdisciplinary research program that aimed to: i) characterize the impact of temperature increase sensed by the entire plant or individual bunches on the development and functioning of the plant, ii) identify the physiological and molecular mechanisms regulating the response of vegetative and reproductive development to heat stress and iii) develop tools to map quantitative trait loci (QTLs) of plant and berry development in duly controlled, stable, and contrasting environmental conditions. Methods and results: Performing high-throughput genomic analyses combined with the use of innovative experimental designs (fruiting cuttings, microvines, single berry sampling) was critical to decipher the ecophysiological and molecular mechanisms involved in the vine response to high temperature. Conclusion: Warming promotes vegetative growth and hampers plant carbon balance, disturbing flower set and young berry development. High temperatures modify primary and secondary fruit metabolisms, desynchronizing sugar and organic acid metabolisms and delaying sugar and polyphenol accumulation during ripening. The study of day and night transcriptomic and proteomic signatures associated with heat highlighted key players of the response to temperature in the fruit. Significance and impact of the study: Capitalizing on this knowledge, a new program is being proposed for the selection of cultivars limiting the accumulation of sugars in the berry while maintaining other qualitative compounds.

Published
2017
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4. The kinetics of grape ripening revisited through berry density sorting

Author

Antoine Bigard, Charles Romieu, Yannick Sire, Mélanie Veyret, Hernan Ojéda, and Laurent Torregrosa

Subjects
fruit ripening, asynchronous development, berry heterogeneity, berry density sorting, Agriculture, Botany, QK1-989
Abstract

Aim: In this study, ripening and heterogeneity in density-sorted berries were investigated, with the aim of more clearly understanding the kinetics of water uptake and sugar, acid and anthocyanin accumulation in the fruit of a new, disease-resistant hybrid. Methods and results: The 3184-1-9N hybrid, grown in a semi-arid climate in the South of France, was used. Its genotype is the result of several backcrosses of a Muscadinia ´ Vitis vinifera F1 hybrid with several V. vinifera varieties. From the end of the green plateau to the over-ripening stage, single berries were sampled weekly and sorted by density, to monitor the advancement of ripening and the heterogeneity of grapevine fruit development at population level. Fruit firmness, density, fresh weight, primary metabolite content (sugars and organic acids), secondary metabolite content (anthocyanins), potassium content and pH were measured in berries from each density class. The data showed that softening and hexose accumulation occurred before fruit pigmentation. Based on malic acid and anthocyanin concentration relative to sugar concentration in density-sorted grapes, malic acid breakdown or dilution was promoted and anthocyanin accumulation reduced in late- or slow-ripening berries. In the different population structures in two experimental plots, berries with similar sugar concentration showed considerable heterogeneity in terms of volume and anthocyanin content, whereas pH, potassium content and acid content showed much more homogeneous kinetics. Conclusions: During ripening, analysis of density-sorted berries provides useful information about sugar concentration heterogeneity and its relation with organic acid and anthocyanin content. The stage at which grapes can be considered ripe may be precisely determined through periodic determination of mean berry volume or weight, to detect the cessation of phloem unloading and the onset of berry shrivelling. However, ripening and shrivelling berries generally coexist in the harvested population. Asynchronous berry development and berry weight heterogeneity greatly complicate determination of the timing of developmental events that are regulated at the single-berry level. Therefore, analysis of individual berries would seem to be an indispensable component of investigations of berry growth and development. Significance and impact of the study: Plotting water uptake and solute accumulation relative to sugar accumulation (as an internal clock) provides an original way to display grapevine fruit development data. Analysis of density-sorted berries has identified the relatively invariant fruit features, such as the minimum concentration of tartaric acid, the stability of potassium accumulation and pH, and conversely, the huge variations in berry size.

Published
2019
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5. Vitis vinifera L. Fruit Diversity to Breed Varieties Anticipating Climate Changes

Author

Antoine Bigard, Dargie T. Berhe, Eleonora Maoddi, Yannick Sire, Jean-Michel Boursiquot, Hernan Ojeda, Jean-Pierre Péros, Agnès Doligez, Charles Romieu, and Laurent Torregrosa

Subjects
climate warming, fruit growth, sugars, organic acids, genetics, grapevine, Plant culture, SB1-1110
Abstract

The wine industry is facing critical issues due to climate changes since production is established on very tight Genotype × Environment interaction bases. While, some cultivation practices may reduce adverse effects of abiotic stresses on the vines, e.g., the use of irrigation to mitigate drought, the deleterious impacts of warming on fruit development are difficult to manage. Elevated temperature alters grapevine fruit growth and composition, with a critical increase of the sugars/organic acids ratio. Select grapes with improved metabolite balances to offset high temperature effects is a valuable option to sustain viticulture. Unfortunately, the lack of knowledge about the genetic diversity for fruit traits impacted by temperature impairs the design of breeding programs. This study aimed to assess the variation in berry volume, main sugars and organic acids amounts in genetic resources. Fruit phenotyping focused on two critical stages of development: the end of green lag phase when organic acidity reaches its maximum, and the ripe stage when sugar unloading and water uptake stop. For that purpose, we studied a panel of 33 genotypes, including 12 grapevine varieties and 21 microvine offspring. To determine the date of sampling for each critical stage, fruit texture and growth were carefully monitored. Analyses at both stages revealed large phenotypic variation for malic and tartaric acids, as well as for sugars and berry size. At ripe stage, fruit fresh weight ranged from 1.04 to 5.25 g and sugar concentration from 751 to 1353 mmol.L-1. The content in organic acids varied both in quantity (from 80 to 361 meq.L-1) and in composition, with malic to tartaric acid ratio ranging from 0.13 to 3.62. At the inter-genotypic level, data showed no link between berry growth and osmoticum accumulation per fruit unit, suggesting that berry water uptake is not dependent only on fruit osmotic potential. Diversity among varieties for berry size, sugar accumulation and malic to tartaric acid ratio could be exploited through cross-breeding. This provides interesting prospects for improving grapevine to mitigate some adverse effects of climate warming on grapevine fruit volume and quality.

Published
2018
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6. Duravitis opens breeding strategies for grapevine facing T° rises

Author

Laurent Torregrosa, Antoine Bigard, Agnes Doligez, David Lecourieux, Markus Rienth, Nathalie Luchaire, Philippe Pieri, Ratthaphon Chatbanyong, Rezth Shahood, Marc Farnos, Catherine Roux, Angelique Adiveze, Jérémy Pillet, Yannick Sire, Emmanuelle Zumstein, Mélanie Veyret, Loic Lecunff, Fatma Lecourieux, Nicolas Saurin, Bertrand Muller, Hernan Ojeda, Cléa Houel, Jean-Pierre Peros, Patrice This, Anne Pellegrino, Charles Romieu, Ecophysiologie et Génomique Fonctionnelle de la Vigne (UMR EGFV), Université de Bordeaux (UB)-Institut des Sciences de la Vigne et du Vin (ISVV)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB)-Institut des Sciences de la Vigne et du Vin (ISVV)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro), Écophysiologie des Plantes sous Stress environnementaux (LEPSE), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro), Unité expérimentale de Pech-Rouge (PECH ROUGE), Institut National de la Recherche Agronomique (INRA), Institut Français de la Vigne et du Vin (IFV), and ProdInra, Migration

Subjects
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences, [SDV.SA] Life Sciences [q-bio]/Agricultural sciences, Protéomique, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, [SDV.BDLR]Life Sciences [q-bio]/Reproductive Biology, Vigne, [SDV.BDLR] Life Sciences [q-bio]/Reproductive Biology, ComputingMilieux_MISCELLANEOUS, Réchauffement climatique
Abstract

National audience

Published
2020

7. The kinetics of grape ripening revisited through berry density sorting

Author

Yannick Sire, Charles Romieu, Antoine Bigard, Mélanie Veyret, Laurent Torregrosa, Hernan Ojeda, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Unité expérimentale de Pech-Rouge (PECH ROUGE), Institut National de la Recherche Agronomique (INRA), Comite Interprofessionnel du Vin de Bordeaux, Foundation Jean Poupelain, Occitanie regional council, and Montpellier SupAgro

Subjects
0106 biological sciences, [SDV.SA]Life Sciences [q-bio]/Agricultural sciences, Population, berry density sorting, fruit ripening, Berry, Horticulture, 01 natural sciences, 040501 horticulture, lcsh:Agriculture, asynchronous development, chemistry.chemical_compound, berry heterogeneity, lcsh:Botany, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, Sugar, education, 2. Zero hunger, education.field_of_study, fungi, lcsh:S, Primary metabolite, food and beverages, Ripening, 04 agricultural and veterinary sciences, lcsh:QK1-989, chemistry, Anthocyanin, Shrivelling, Malic acid, 0405 other agricultural sciences, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, 010606 plant biology & botany, Food Science
Abstract

International audience; Aim: In this study, ripening and heterogeneity in density-sorted berries were investigated, with the aim of more clearly understanding the kinetics of water uptake and sugar, acid and anthocyanin accumulation in the fruit of a new, disease-resistant hybrid. Methods and results: The 3184-1-9N hybrid, grown in a semi-arid climate in the South of France, was used. Its genotype is the result of several backcrosses of a Muscadinia Vitis vinifera F1 hybrid with several V. vinifera varieties. From the end of the green plateau to the over-ripening stage, single berries were sampled weekly and sorted by density, to monitor the advancement of ripening and the heterogeneity of grapevine fruit development at population level. Fruit firmness, density, fresh weight, primary metabolite content (sugars and organic acids), secondary metabolite content (anthocyanins), potassium content and pH were measured in berries from each density class. The data showed that softening and hexose accumulation occurred before fruit pigmentation. Based on malic acid and anthocyanin concentration relative to sugar concentration in density-sorted grapes, malic acid breakdown or dilution was promoted and anthocyanin accumulation reduced in late- or slow-ripening berries. In the different population structures in two experimental plots, berries with similar sugar concentration showed considerable heterogeneity in terms of volume and anthocyanin content, whereas pH, potassium content and acid content showed much more homogeneous kinetics. Conclusions: During ripening, analysis of density-sorted berries provides useful information about sugar concentration heterogeneity and its relation with organic acid and anthocyanin content. The stage at which grapes can be considered ripe may be precisely determined through periodic determination of mean berry volume or weight, to detect the cessation of phloem unloading and the onset of berry shrivelling. However, ripening and shrivelling berries generally coexist in the harvested population. Asynchronous berry development and berry weight heterogeneity greatly complicate determination of the timing of developmental events that are regulated at the single-berry level. Therefore, analysis of individual berries would seem to be an indispensable component of investigations of berry growth and development. Significance and impact of the study: Plotting water uptake and solute accumulation relative to sugar accumulation (as an internal clock) provides an original way to display grapevine fruit development data. Analysis of density-sorted berries has identified the relatively invariant fruit features, such as the minimum concentration of tartaric acid, the stability of potassium accumulation and pH, and conversely, the huge variations in berry size.

Published
2019
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8. Developmental, molecular and genetic studies on grapevine response to temperature open breeding strategies for adaptation to warming

Author

Yannick Sire, Charles Romieu, Hernán Ojeda, Patrice This, Jérémie Pillet, Markus Rienth, Fatma Lecourieux, Cléa Houel, Mélanie Veyret, Jean Pierre Péros, Loïc Le Cunff, Ratthaphon Chatbanyong, Catherine Roux, Antoine Bigard, Nathalie Luchaire, Anne Pellegrino, Philippe Pieri, David Lecourieux, Marc Farnos, Emmanuelle Zumstein, Rezth Shahood, Laurent Torregrosa, Bertrand Muller, Nicolas Saurin, Angélique Adivèze, Agnès Doligez, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro), Institut Français de la Vigne et du Vin (IFV), Unité expérimentale de Pech-Rouge, Institut National de la Recherche Agronomique (INRA), Ecophysiologie et Génomique Fonctionnelle de la Vigne (EGFV), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro)-Institut des Sciences de la Vigne et du Vin (ISVV)-Université de Bordeaux (UB), Fondation Jean Poupelain, Changins Haute Ecole de Viticulture et Oenologie, Écophysiologie des Plantes sous Stress environnementaux (LEPSE), Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut des Sciences de la Vigne et du Vin [Villenave d'Ornon] (ISVV), Université de Bordeaux (UB), Géno-vigne® (UMT Géno-vigne®), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut Français de la Vigne et du Vin (IFV)-Institut National de la Recherche Agronomique (INRA), ANR-2010-GENM-004-01, Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Unité expérimentale de Pech-Rouge (PECH ROUGE), Ecophysiologie et Génomique Fonctionnelle de la Vigne (UMR EGFV), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB)-Institut des Sciences de la Vigne et du Vin (ISVV)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut Français de la Vigne et du Vin (IFV)-Institut National de la Recherche Agronomique (INRA), ANR-10-GENM-0004,DURAVITIS,Bases développementales, moléculaires et génétiques de l'adaptation de la vigne à la contrainte thermique.(2010), Université de Bordeaux (UB)-Institut des Sciences de la Vigne et du Vin (ISVV)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Torregrosa, Laurent, Diversité et adaptation des plantes cultivées (UMR DIAPC), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2), Diversité, Adaptation et Amélioration de la Vigne [AGAP] (DAAV), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro), Institut de Mathématiques de Marseille (I2M), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), Unité d'oenologie de Pech-Rouge (MONTP PECH ROUG UE), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut National de la Recherche Agronomique (INRA)-Institut Français de la Vigne et du Vin (IFV)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
0301 basic medicine, 0106 biological sciences, [SDV.SA]Life Sciences [q-bio]/Agricultural sciences, Vegetative reproduction, Berry, adaptation, 01 natural sciences, heat stress, Cutting, lcsh:Botany, Cultivar, ComputingMilieux_MISCELLANEOUS, 2. Zero hunger, 0303 health sciences, Vegetal Biology, genetic improvement, Ecology, biology, Global warming, food and beverages, Ripening, lcsh:QK1-989, Agricultural sciences, écophysiologie végétale, stress thermique, Vine, cartographie de qtl, Quantitative trait locus, Biology, Horticulture, lcsh:Agriculture, 03 medical and health sciences, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, analyse génomique, 030304 developmental biology, business.industry, lcsh:S, temperature, 15. Life on land, Biotechnology, grapevine, 030104 developmental biology, adaptation au changement climatique, Adaptation, business, vigne, Biologie végétale, Sciences agricoles, 010606 plant biology & botany, Food Science
Abstract

Aim: In the long term, genetic improvement is one of the major strategies to support sustainable wine production in a changing climate. Over the past 5 years, we have developed an interdisciplinary research program that aimed to: i) characterize the impact of temperature increase sensed by the entire plant or individual bunches on the development and functioning of the plant, ii) identify the physiological and molecular mechanisms regulating the response of vegetative and reproductive development to heat stress and iii) develop tools to map quantitative trait loci (QTLs) of plant and berry development in duly controlled, stable, and contrasting environmental conditions.Methods and results: Performing high-throughput genomic analyses combined with the use of innovative experimental designs (fruiting cuttings, microvines, single berry sampling) was critical to decipher the ecophysiological and molecular mechanisms involved in the vine response to high temperature.Conclusion: Warming promotes vegetative growth and hampers plant carbon balance, disturbing flower set and young berry development. High temperatures modify primary and secondary fruit metabolisms, desynchronizing sugar and organic acid metabolisms and delaying sugar and polyphenol accumulation during ripening. The study of day and night transcriptomic and proteomic signatures associated with heat highlighted key players of the response to temperature in the fruit. Significance and impact of the study: Capitalizing on this knowledge, a new program is being proposed for the selection of cultivars limiting the accumulation of sugars in the berry while maintaining other qualitative compounds.

Published
2017
Full Text
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9. Duravitis & VDQA programs open new breeding strategies for grapevine facing T° rises

Author

Laurent Torregrosa, Antoine Bigard, Agnes Doligez, David Lecourieux, Markus Rienth, Nathalie Luchaire, Philippe Pieri, Ratthaphon Chatbanyong, Rezk Shahood, Marc Farnos, Catherine Roux, Angelique Adiveze, Jérémy Pillet, Yannick Sire, Emmanuelle Zumstein, Mélanie Veyret, Loic Lecunff, Fatma Lecourieux, Nicolas Saurin, Bertrand Muller, Hernan Ojeda, Cléa Houel, Jean-Pierre Peros, Patrice This, Anne Pellegrino, Charles Romieu, ProdInra, Migration, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Ecophysiologie et Génomique Fonctionnelle de la Vigne (UMR EGFV), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB)-Institut des Sciences de la Vigne et du Vin (ISVV)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro), Écophysiologie des Plantes sous Stress environnementaux (LEPSE), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro), Unité expérimentale de Pech-Rouge (PECH ROUGE), Institut National de la Recherche Agronomique (INRA), Pôle Matériel Végétal, UMT Géno-Vigne, IFV Pôle Rhône-Méditerranée, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), and Université de Bordeaux (UB)-Institut des Sciences de la Vigne et du Vin (ISVV)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)

Subjects
Changement climatique, [SDE] Environmental Sciences, Viticulture, Adaptation au changement climatique, [SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering, [SDV]Life Sciences [q-bio], [SDV.IDA] Life Sciences [q-bio]/Food engineering, [SDV] Life Sciences [q-bio], [SDE]Environmental Sciences, [SDV.IDA]Life Sciences [q-bio]/Food engineering, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, Vigne, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, [SDV.BV] Life Sciences [q-bio]/Vegetal Biology, ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2016

10. Grapevine and climate warming: Duravitis program opens new breeding strategies for temperature adaptation

Author

Laurent Torregrosa, Antoine Bigard, Agnes Doligez, David Lecourieux, Markus Rienth, Nathalie Luchaire, Ratthaphon Chatbanyong, Rezth Shahood, Jérémy Pillet, Loic Le Cunff, Fatma Lecourieux, Bertrand Muller, Hernan Ojeda, Patrice This, Anne Pellegrino, Charles Romieu, ProdInra, Migration, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Unité expérimentale de Pech-Rouge (PECH ROUGE), Institut National de la Recherche Agronomique (INRA), Ecophysiologie et Génomique Fonctionnelle de la Vigne (UMR EGFV), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB)-Institut des Sciences de la Vigne et du Vin (ISVV)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro), Fondation Jean Poupelain, Station Fédérale de Recherche Agronomique de Changins, Écophysiologie des Plantes sous Stress environnementaux (LEPSE), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro), Institut Français de la Vigne et du Vin (IFV), Institut National de Recherche Agronomique (INRA). UMR Ecophysiologie et Génomique Fonctionnelle de la Vigne (1287)., and Université de Bordeaux (UB)-Institut des Sciences de la Vigne et du Vin (ISVV)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)

Subjects
[SDE] Environmental Sciences, [SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering, [SDV]Life Sciences [q-bio], [SDV.IDA] Life Sciences [q-bio]/Food engineering, Réchauffement climatique, [SDV] Life Sciences [q-bio], Vitis Vinifera, Baie de raisin, [SDV.IDA]Life Sciences [q-bio]/Food engineering, [SDE]Environmental Sciences, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, [SDV.BV] Life Sciences [q-bio]/Vegetal Biology, ComputingMilieux_MISCELLANEOUS
Abstract

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