A5016027760- Genetic Mapping and Diversity in Plants and Animals
- Genetics and Plant Breeding
- Genetic diversity and population structure
- Genetic and phenotypic traits in livestock
- Wheat and Barley Genetics and Pathology
- Rice Cultivation and Yield Improvement
- Genetic and Environmental Crop Studies
- Seed and Plant Biochemistry
- Agriculture and Rural Development Research
- Chromosomal and Genetic Variations
- Agricultural Innovations and Practices
- GABA and Rice Research
- Genomics and Phylogenetic Studies
- Agricultural pest management studies
- Legume Nitrogen Fixing Symbiosis
- Potato Plant Research
- Plant Genetic and Mutation Studies
- Microbial Metabolites in Food Biotechnology
- Plant Disease Resistance and Genetics
- Species Distribution and Climate Change
- French Urban and Social Studies
- Agriculture, Land Use, Rural Development
- Plant Reproductive Biology
- Plant Gene Expression Analysis
- Plant Taxonomy and Phylogenetics
Institut de Recherche pour le Développement
2024
Diversité, adaptation et développement des plantes
2013-2023
Agropolis International
2002-2023
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2023
Université de Montpellier
2010-2023
Institut de Recherche pour le Développement
2011-2023
Genetic Improvement and Adaptation of Mediterranean and Tropical Plants
2014
University of Wisconsin–Madison
2005-2008
University of California, Irvine
2007
Cornell University
2007
Crop improvement and the dissection of complex genetic traits require germplasm diversity. Although this necessary phenotypic variability exists in diverse maize, most research is conducted using a small subset inbred lines. An association population 302 lines now available--a valuable tool that captures large proportion alleles cultivated maize. Provided appropriate statistical models correcting for structure are included, can be used analyses to provide high-resolution evaluation multiple...
Abstract Thanks to genome‐scale diversity data, present‐day studies can provide a detailed view of how natural and cultivated species adapt their environment particularly environmental gradients. However, due sensitivity, up‐to‐date might be more sensitive undocumented demographic effects such as the pattern migration reproduction regime. In this study, we guidelines for use popular or recently developed statistical methods detect footprints selection. We simulated 100 populations along...
Abstract Zero hunger and good health could be realized by 2030 through effective conservation, characterization utilization of germplasm resources 1 . So far, few chickpea ( Cicer arietinum ) accessions have been characterized at the genome sequence level 2 Here we present a detailed map variation in 3,171 cultivated 195 wild to provide publicly available for genomics research breeding. We constructed pan-genome describe genomic diversity across its progenitor accessions. A divergence tree...
While there has been progress in our understanding of the origin and history agriculture sub-Saharan Africa, a unified perspective is still lacking on where how major crops were domesticated region. Here, we investigated domestication African yam (Dioscorea rotundata), key crop early agriculture. Using whole-genome resequencing statistical models, show that cultivated was from forest species. We infer expansion started Niger River basin. This result, alongside with origins rice pearl millet,...
Climate changes will have an impact on food production and require costly adaptive responses. Adapting to a changing environment be particularly challenging in sub-Saharan Africa where climate change is expected major impact. However, one important phenomenon that often overlooked poorly documented the ability of agro-systems rapidly adapt environmental variations. Such adaptation could proceed by adoption new varieties or environment. In this study, we analyzed these two processes driest...
Estimation of long-term effective population size (N(e)) from polymorphism data alone requires an independent knowledge mutation rate. Microsatellites provide the opportunity to estimate N(e) because their high rate can be estimated observed mutations. We used this property in allotetraploid wheat Triticum turgidum at four stages its history since domestication. 30 microsatellite loci. Allele-specific rates mu were predicted number repeats alleles. Effective sizes calculated diversity...
Identifying the molecular bases of adaptation is a key issue in evolutionary biology. Genome scan an efficient approach for identifying important variation involved adaptation. Association mapping also offers opportunity to gain insight into genotype-phenotype relationships. Using these two approaches coupled with environmental data should help come up refined picture process underlying In this study, we first conducted selection analysis on transcription factor gene family. We focused...
The plant domestication process is associated with considerable modifications of phenotype. identification the genetic basis this adaptation great interest for evolutionary biology. One methods used to identify such genes detection signatures selection. However, generally major demographic effects. It therefore crucial disentangle effects demography and selection on diversity. In study, we investigated in a flowering time pathway during pearl millet. We first random set 20 model millet using...
Association mapping studies offer great promise to identify polymorphisms associated with phenotypes and for understanding the genetic basis of quantitative trait variation. To date, almost all association based on structured plant populations examined main effects factors but did not deal interactions between environment. In this paper, we propose a methodological prospect mixed linear models analyze genotype by environment interaction using designs. First, simulated datasets assess power...
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Uncovering genomic regions involved in adaption is a major goal evolutionary biology. High-throughput sequencing now makes it possible to tackle this challenge nonmodel species. Yet, despite the increasing number of methods targeted specifically detect footprints selection, complex demography natural populations often causes high rates false positive gene discoveries. The aim study was identify climate adaptations wild pearl millet populations, Cenchrus americanus ssp. monodii. We focused on...
After cereals, root and tuber crops are the main source of starch in human diet. Starch biosynthesis was certainly a significant target for selection during domestication these crops. But tubers is also associated with gigantism storage organs changes habitat. We studied here, molecular basis African yam, Dioscorea rotundata. The genomic diversity cultivated species roughly 30% less important than its wild relatives. Two percent all genes showed evidences selection. earliest stages storage,...
African rice, Oryza glaberrima, is an invaluable resource for rice cultivation and the improvement of biotic abiotic resistance properties. Since its domestication in inner Niger delta ca. 2500 years BP, has colonized a variety ecologically climatically diverse regions. However, little known about genetic basis quantitative traits adaptive variation agricultural interest this species.Using reference set 163 fully re-sequenced accessions, we report results Genome Wide Association Study...
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Abstract We investigated DNA sequence variation in 72 candidate genes maize landraces and the wild ancestor of maize, teosinte. The were chosen because they exhibit very low diversity among inbreds have homology to known regulatory genes. observed signatures selection 17 genes, indicating that potential targets artificial during domestication. In addition, 21 identified as natural A comparison proportion selected between our unfiltered for their function (but also with inbreds) provided some...
While eDNA approaches have gained interest over the past decades all types of organisms not been addressed evenly. In particular terrestrial plants subject less attention. Here we address possibility to represent plant biodiversity from airborne environmental DNA (eDNA) sampling and metabarcoding. We collected air using a biological sampler in Botanical Garden Montpellier (France) compared list revealed species botanical inventory Garden. Ninety-two could be detected three points across 4,6...
Artificial selection during the domestication of maize is thought to have been predominantly positive and had little effect on surrounding neutral diversity because linkage disequilibrium breaks down rapidly when physical distance increases. However, degree which indirect has shaped in genome remains unclear. In this study, we investigate relationship between local recombination rate polymorphism teosinte using both sequence microsatellite data. To quantify diversity, estimate 3 parameters...
Abstract Background African rice, Oryza glaberrima , is an invaluable resource for rice cultivation and the improvement of biotic abiotic resistance properties. Since its domestication in inner Niger delta ca. 2500 years BP, has colonized a variety ecologically climatically diverse regions. However, little known about genetic basis quantitative traits adaptive variation agricultural interest this species. Results Using reference set 163 fully re-sequenced accessions, we report results Genome...