A5034020718- Genetic diversity and population structure
- Plant and animal studies
- Genetic Mapping and Diversity in Plants and Animals
- Plant-Microbe Interactions and Immunity
- Plant Water Relations and Carbon Dynamics
- Genetic and Environmental Crop Studies
- Plant Parasitism and Resistance
- Plant Gene Expression Analysis
- Plant Reproductive Biology
- Entomopathogenic Microorganisms in Pest Control
- Plant Pathogens and Resistance
- Photosynthetic Processes and Mechanisms
- Evolution and Genetic Dynamics
- Genetic and phenotypic traits in livestock
- Plant Molecular Biology Research
- Genomics and Phylogenetic Studies
- Ecology and Vegetation Dynamics Studies
- Plant responses to water stress
- Plant pathogens and resistance mechanisms
- Tree Root and Stability Studies
- Chromosomal and Genetic Variations
- Plant Disease Resistance and Genetics
- Tree-ring climate responses
- Legume Nitrogen Fixing Symbiosis
- Gut microbiota and health
Centre d'Études Scientifiques et Techniques d'Aquitaine
2017-2024
UMR BIOdiversity, GEnes & Communities
2017-2024
Université de Bordeaux
2017-2023
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2017-2023
University of Chicago
2011-2022
Université de Lille
2009-2018
Centre National de la Recherche Scientifique
2009-2018
Unité Évolution, Écologie et Paléontologie
2018
Laboratoire de Génétique & Evolution des Populations Végétales
2010-2013
Université Lille Nord de France
2009
Understanding the genetic bases and modes of adaptation to current climatic conditions is essential accurately predict responses future environmental change. We conducted a genome-wide scan identify climate-adaptive loci pathways in plant Arabidopsis thaliana. Amino acid-changing variants were significantly enriched among strongly correlated with climate, suggesting that our effectively detects adaptive alleles. Moreover, from results, we successfully predicted relative fitness set...
Flowering time is a key life-history trait in the plant life cycle. Most studies to unravel genetics of flowering Arabidopsis thaliana have been performed under greenhouse conditions. Here, we describe study about that differs from previous two important ways: first, measure more complex and ecologically realistic environment; and, second, combine advantages genome-wide association (GWA) traditional linkage (QTL) mapping. Our experiments involved phenotyping nearly 20,000 plants over 2...
Oaks are an important part of our natural and cultural heritage. Not only they ubiquitous in most common landscapes1 but have also supplied human societies with invaluable services, including food shelter, since prehistoric times2. With 450 species spread throughout Asia, Europe America3, oaks constitute a critical global renewable resource. The longevity (several hundred years) probably underlies their emblematic historical importance. Such long-lived sessile organisms must persist the face...
By following the evolution of populations that are initially genetically homogeneous, much can be learned about core biological principles. For example, it allows for detailed studies rate emergence de novo mutations and their change in frequency due to drift selection. Unfortunately, multicellular organisms with generation times months or years, is difficult set up carry out such experiments over many generations. An alternative provided by "natural experiments" started from colonizations...
The "mustard oil bomb" is a major defense mechanism in the Brassicaceae, which includes crops such as canola and model plant Arabidopsis thaliana. These plants produce store blends of amino acid-derived secondary metabolites called glucosinolates. Upon tissue rupture by natural enemies, myrosinase enzyme hydrolyses glucosinolates, releasing molecules. Brassicaceae display extensive variation mixture glucosinolates that they produce. To investigate genetics underlying glucosinolate profiles,...
The Hengduan Mountains (HDM) biodiversity hotspot exhibits exceptional alpine plant diversity. Here, we investigate factors driving intraspecific divergence within a HDM species Salix brachista (Cushion willow), common component of subnival assemblages. We produce high-quality genome assembly for this and characterize its genetic diversity, population structure pattern evolution by resequencing individuals collected across distribution. detect that has been shaped landscape isolated sky...
Despite the increasing number of genomic tools, identifying genetics underlying adaptive complex traits remains challenging in model species Arabidopsis thaliana. This is due, at least part, to lack data on geographical scale phenotypic variation. The aims this study were (i) tease apart historical roles and nonselective processes shaping phenological variation A. thaliana France (ii) gain insights into spatial by putative selective agents responsible for selection. Forty-nine natural stands...
Although complex interactions between hosts and microbial associates are increasingly well documented, we still know little about how why shape communities in nature. In addition, host genetic effects on vary widely depending the environment, obscuring conclusions which microbes impacted plant functions important. We characterized leaf microbiota of 200 Arabidopsis thaliana genotypes eight field experiments detected consistent specific, broadly distributed species (operational taxonomic unit...
Phenological traits often show variation within and among natural populations of annual plants. Nevertheless, the adaptive value post-anthesis is seldom tested. In this study, we estimated values pre- in two stressful environments (water stress interspecific competition), using selfing species Arabidopsis thaliana. By estimating seed production by performing laboratory selection (LNS), assessed strength nature (directional, disruptive stabilizing) acting on phenological A. thaliana under...
Research on plant-herbivore interactions has long recognized that plant genetic variation plays a central role in driving insect abundance and herbivory, as well determining defense. However, how genes influence herbivore feeding performances, which defensive traits mediate these effects, remain poorly understood. Here we investigated the performances of two leaf chewers with contrasting diet breadth (the generalist Lymantria dispar L. specialist Thaumetopoea processionea L.) different...
Gynodioecy involves the stable co‐occurrence of females and hermaphrodites. Its maintenance theoretically depends on differences in female male reproductive success among gender morphs. Although many gynodioecious species also include gynomonoecious individuals that carry a mixture perfect flowers, little is known about fitness this third morph. Here, we present first study system Silene nutans, including females, plants, By measuring 10 floral traits controlled conditions, showed bear...
Exotic pathogens cause severe damage in natural populations the absence of coevolutionary dynamics with their hosts. However, some resistance to such may occur naive populations. The objective this study was investigate genetics so-called 'exapted' two Asian origin (Erysiphe alphitoides and Phytophthora cinnamomi) European oak. Host-pathogen compatibility assessed by recording infection success pathogen growth a full-sib family Quercus robur under controlled conditions. Two high-resolution...
Often used as a proxy for the transition to reproduction, flowering time (FT) is an integrative trait of two successive biological processes,
Abstract Although complex interactions between hosts and microbial associates are increasingly well documented, we still know little about how why shape communities in nature. In addition, host genetic effects on vary widely depending the environment, obscuring conclusions which microbes impacted plant functions important. We characterized leaf microbiota of 200 A. thaliana genotypes eight field experiments detected consistent specific, broadly distributed OTU’s. Host genetics...
Abstract Specialized or secondary metabolites play a key role in plant resistance against abiotic stresses and defences bioaggressors. For example, sessile oaks Quercus petraea , phenolics contribute to reduce herbivore damage improve drought resistance. Here, we explored the natural variation of specialized nine European provenances aimed detect its underlying genetic bases. We sampled mature leaves from high low branches on 225 oak trees located common garden used untargeted metabolomics...
Drought and waterlogging impede tree growth may even lead to death. Oaks, an emblematic group of species, have evolved a range adaptations cope with these constraints. The two most widely distributed European pedunculate (PO; Quercus robur L.) sessile oak (SO; petraea Matt. Lieb), overlapping ranges, but their respective distribution are highly constrained by local soil conditions. These contrasting ecological preferences between closely related frequently hybridizing species constitute...
Summary In a context of climate change, it is necessary to decipher the strategies established by plants cope with limited water supply. Transcriptome, methylome and small RNA data were generated for two oak species contrasting levels drought tolerance ( Quercus robur petraea ), under control stress conditions All are in line species-specific response consistent their ecological preferences. The biological processes associated genomic regions identified all datasets mainly parietal Q....