Caractérisation fonctionnelle d'un régulateur central des ajustements aux stress biotiques et abiotiques : vers la dissection des compromis physiologiques et moléculaires de l'adaptation du blé au changement climatique // Functional characterization of a
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ABG-137814
ADUM-72132 |
Thesis topic | |
| 2026-04-08 | Public funding alone (i.e. government, region, European, international organization research grant) |
Université Clermont Auvergne
AUBIERE - Auvergne-Rhône-Alpes - France
Caractérisation fonctionnelle d'un régulateur central des ajustements aux stress biotiques et abiotiques : vers la dissection des compromis physiologiques et moléculaires de l'adaptation du blé au changement climatique // Functional characterization of a
- Biology
Biologie Végétale, Réponses à l'environnement biotique et abiotique, Multistress, Réseaux de régulation , Validation fonctionnelle
Plant Biology, Responses to biotic and abiotic challenges, Multistress, Gene regulation networks, functional validation
Plant Biology, Responses to biotic and abiotic challenges, Multistress, Gene regulation networks, functional validation
Topic description
Les plantes doivent constamment arbitrer entre croissance, défense et acclimatation pour faire face à des contraintes environnementales multiples et concomitantes. Ces arbitrages reposent sur des master régulateurs capables d'intégrer différents signaux, parfois antagonistes, et de coordonner des réseaux complexes de régulation moléculaire. Chez le blé tendre, des travaux récents menés par l'équipe IPM en partenariat avec Limagrain ont identifié un facteur de transcription de type WRKY jouant un rôle clé dans la régulation de l'immunité et potentiellement impliqué dans la réponse aux stress abiotiques (Rocher et al., 2024). L'obtention de mutants knock-out générés par CRISPR-Cas9 offrent une opportunité unique d'étudier le rôle de ce régulateur dans la priorisation des réponses en conditions de stress combinés. Le projet de thèse visera à caractériser, par phénotypage physiologique et approches omiques intégratives, les réseaux de régulation activés et les compromis croissance–défense mis en place par la plante. L'objectif est d'identifier les mécanismes décisionnels contrôlant ces arbitrages afin de contribuer au développement de variétés de blé plus résilientes face aux changements climatiques.
Rocher et al., Integrative systems biology of wheat susceptibility to Fusarium graminearum uncovers a conserved gene regulatory network and identifies master regulators targeted by fungal core effectors. 2024. BMC Biology 22:53. https://doi.org/10.1186/s12915-024-01852-x
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Plants must continuously balance growth, defense, and acclimation in order to cope with multiple and often simultaneous environmental constraints. These trade-offs rely on master regulators capable of integrating diverse, sometimes antagonistic, signals and coordinating complex molecular regulatory networks. In bread wheat (Triticum aestivum), recent work conducted by the IPM team in partnership with Limagrain has identified a WRKY-type transcription factor playing a key role in the regulation of plant immunity and potentially involved in responses to abiotic stresses (Rocher et al., 2024). The generation of knock-out mutants using CRISPR-Cas9 provides a unique opportunity to investigate the role of this regulator in prioritizing responses under combined stress conditions.
This PhD project aims to characterize, through physiological phenotyping and integrative omics approaches, the regulatory networks activated and the growth–defense trade-offs implemented by the plant. The ultimate objective is to identify the decision-making mechanisms controlling these adaptive responses, thereby contributing to the development of wheat varieties that are more resilient to climate change.
Rocher et al., Integrative systems biology of wheat susceptibility to Fusarium graminearum uncovers a conserved gene regulatory network and identifies master regulators targeted by fungal core effectors. 2024. BMC Biology 22:53. https://doi.org/10.1186/s12915-024-01852-x
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Début de la thèse : 01/10/2026
Rocher et al., Integrative systems biology of wheat susceptibility to Fusarium graminearum uncovers a conserved gene regulatory network and identifies master regulators targeted by fungal core effectors. 2024. BMC Biology 22:53. https://doi.org/10.1186/s12915-024-01852-x
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Plants must continuously balance growth, defense, and acclimation in order to cope with multiple and often simultaneous environmental constraints. These trade-offs rely on master regulators capable of integrating diverse, sometimes antagonistic, signals and coordinating complex molecular regulatory networks. In bread wheat (Triticum aestivum), recent work conducted by the IPM team in partnership with Limagrain has identified a WRKY-type transcription factor playing a key role in the regulation of plant immunity and potentially involved in responses to abiotic stresses (Rocher et al., 2024). The generation of knock-out mutants using CRISPR-Cas9 provides a unique opportunity to investigate the role of this regulator in prioritizing responses under combined stress conditions.
This PhD project aims to characterize, through physiological phenotyping and integrative omics approaches, the regulatory networks activated and the growth–defense trade-offs implemented by the plant. The ultimate objective is to identify the decision-making mechanisms controlling these adaptive responses, thereby contributing to the development of wheat varieties that are more resilient to climate change.
Rocher et al., Integrative systems biology of wheat susceptibility to Fusarium graminearum uncovers a conserved gene regulatory network and identifies master regulators targeted by fungal core effectors. 2024. BMC Biology 22:53. https://doi.org/10.1186/s12915-024-01852-x
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Début de la thèse : 01/10/2026
Funding category
Public funding alone (i.e. government, region, European, international organization research grant)
Funding further details
Concours pour un contrat doctoral
Presentation of host institution and host laboratory
Université Clermont Auvergne
Institution awarding doctoral degree
Université Clermont Auvergne
Graduate school
65 Sciences de la Vie, Santé, Agronomie, Environnement
Candidate's profile
Master 2 en Biologie Végétale
Compétences et motivation pour la physiologie moléculaire et la phytopathologie.
Bonnes compétences en analyse de données.
Master's degree in Plant Biology, or equivalent Skills and motivation for molecular physiology and plant pathology. Good skills in complex data analysis.
Master's degree in Plant Biology, or equivalent Skills and motivation for molecular physiology and plant pathology. Good skills in complex data analysis.
2026-06-15
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