- Présentation
- Recherche
- FunRNA : Conservation fonctionnelle des longs ARN non codants des plantes
- FLOCAD : Développement floral et déterminisme du sexe
- Qlab : Equipe Génomique et épigenomique quantitative des plantes
- ChromD : Dynamique des chromosomes
- SILAB : Voies de signalisation régulant l'architecture du système racinaire des légumineuses en réponse à des bactéries bénéfiques
- CCARS : Changement climatique et signalisation redox
- STRESS : Voies de signalisation du stress
- OGE : Expression des génomes des organites
- Modélisation mathématique et informatique pour les études plant-omics COMPAS / Marie-Hélène Mucchielli-Giorgi & Guillem Rigaill
- GUILLOTIN Lab
- Enseignement
- Plateformes
- Bases de données
Conseil Européen de la Recherche (ERC) : le projet HybridSeed
Équipe A. Bendahmane
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HybridSeed: Sex determination genes as a toolbox for F1 hybrid seed production and yield increase Grant: ERC POC Grant |
Objectives
How the gender of a flower or plant is determined is an important question in plant developmental biology. Understanding this process has also practical applications, as the gender of a flower or plant determines how it is bred and cultivated. HybridSeed project aims to engineer plant prototypes with three goals: (i) reduce the cost of F1 hybrid seed production, (ii) improve yields of F1 hybrid plants, and (iii) simplify the itinerary of the crops, from the seed companies to the producers.
Methodology
HybridSeed project is built on the knowledge of the genes controlling the development of unisexual and hermaphrodite flowers, obtained within the ERC advanced grant SEXYPARTH.
We have published these works in the following papers (Science 2008, Nature 2009, Science 2015, Science 2022 and Nature Plant 2023. We have shown that the gynoecious (G) gene codes for a zinc finger transcription factor, CmWIP1, the andromonoecious (M1) recessive gene for an ethylene biosynthesis enzyme, CmACS-7 and the androecious gene (A) for CmACS11. Recently, we cloned three additional components of the sex determination pathway. One of them, the andromonoecious (M2) gene, encoding CmHB40. Mutant alleles will be produced and combined to produce different sexual morphs that will be phenotyped for sex stability and fruit production
Significance
HybridSeed is positioned at the crossroads of a technology dedicated to F1 hybrid plants production and the cultivation of cucurbits.