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Food and Nutrition Security and Sustainable Agriculture (FNSSA) 2020

BrasExplor : Wide exploration of genetic diversity in Brassica species for sustainable crop production

France ; Spain ; Algeria ; Tunisia ; Egypt ; Italy ; Slovenia

Long-term Europe-Africa Research and Innovation Partnership for Food and Nutrition Security and Sustainable Agriculture

Titre : BrasExplor : Wide exploration of genetic diversity in Brassica species for sustainable crop production

Pays/Région : France ; Spain ; Algeria ; Tunisia ; Egypt ; Italy ; Slovenia

Date : Start date 2020-02-01 // End date 2023-06-01

Identifiant : 237-BRASEXPLOR
Type de projet : Development and innovation oriented (research) project

We will collect wild and locally cultivated populations on large climatic gradient from the north of France to south of North Africa. We will adopt a Genome-Environmental-Association (GEA) approach, controlling for plant population structure, to identify the plant genetic loci associated to local habitat variables (i.e. climate variables and soil edaphic and biotic variables). Information on the soil microbiota will also provide important insights on the relationship between variation of the microbiota descriptors (α-and β-diversity) and the plant genetic variability. Results, obtained by the in situ GEA approach will be confirmed under controlled conditions for water and temperature stress as well as under contrasted field conditions for different traits : seed germination, root architecture, flowering phenology, self-incompatibility, microbiota diversity, morphology. Genetic data will be also used to infer their population genetic structure and to understand the relationships between wild and cultivated forms for each species. Results will allow development of core-collections for in situ/on-farm management strategies and ex situ conservation as well as for promotion of landraces. Outcomes of this project will also provide first generation of pre-breeding populations.

The major impact of the project will be the preservation of natural and local genetic resources and the optimization of the use of this diversity through the identification of relevant adaptive genes in the context of global change for Brassica vegetables. The identification of genomic regions involved in responses to different abiotic stress will open the avenue for new breeding strategies through marker-assisted selection. It will offer a unique opportunity to identify novel alleles for genes of agronomical interest in the wild forms or landraces that could thereafter be used to develop prebreeding populations for further new elite variety productions more adapted to climatic changes or agronomical practices. The identification plant loci associated to soil microbiota-Brassica interactions will allow in the future to : i) select for microbial communities protecting Brassica species to environmental fluctuations or extreme conditions, ii) breed new varieties with the ability to select for beneficial bacterial responsible for the uptake of key-nutrients and helping plants to adapt to climate change. Both perspectives will generally allow to develop management strategies in the context of reducing chemical inputs in agriculture. Finally, the detailed assessment of local landraces will allow (i) the preservation of endangered varieties, (ii) the development of niche market appropriate to small-scale farming systems from well-adapted varieties corresponding to local uses.

Coordinateur : Institute for Genetics, Environment and Plant Protection (IGEPP)
Partenaires : Protection (IGEPP) Partners Amélioration Génétique et Adaptation des Plantes méditerranéennes et tropicales (AGAP) French Variety and Seed Study and Control Group (GEVES) University Of Science And Technology Houari Boumediene (USTHB) Algeria National Agronomic Research institute (INRAA) Institut Technique Des Cultures Maraichères Et Industrielles (ITCMI) National Gene Bank of Egypt (NGB) National Institute for Agricultural and Food Research and Technology (INIA) Council for Agricultural Research and Economics (CREA) University of Palermo (UNIPA) Institut National de la Recherche Agronomique de Tunisie (INRAT)

Financement principal : Directorate-General for Research and Innovation (DG RTD) (H2020)
Budget : 871 372 EUR

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Page publiée le 31 août 2023