A5011874401- Coffee research and impacts
- Cocoa and Sweet Potato Agronomy
- Agriculture and Rural Development Research
- Transgenic Plants and Applications
- Food Chemistry and Fat Analysis
- Plant Virus Research Studies
- CRISPR and Genetic Engineering
- Plant tissue culture and regeneration
- Insect Resistance and Genetics
- Growth and nutrition in plants
- African Botany and Ecology Studies
- Banana Cultivation and Research
- Organic Food and Agriculture
- Microbial Metabolites in Food Biotechnology
- Genetically Modified Organisms Research
- Plant Stress Responses and Tolerance
- Animal Disease Management and Epidemiology
- Plant Pathogens and Fungal Diseases
- Genetics and Plant Breeding
- Research in Cotton Cultivation
- Plant nutrient uptake and metabolism
- Biochemical Analysis and Sensing Techniques
- Genetic diversity and population structure
- Plant biochemistry and biosynthesis
- Pineapple and bromelain studies
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2011-2022
Genetic Improvement and Adaptation of Mediterranean and Tropical Plants
2011-2022
Agropolis International
2000-2022
Institut Agro Montpellier
2009-2017
Université de Montpellier
2017
Institut de Recherche pour le Développement
2007-2011
Diversité, adaptation et développement des plantes
2011
Centre National de Recherche Agronomique
2000-2008
Université Gustave Eiffel
1998-2000
Nestlé (France)
1998-2000
Coffee, tea, and chocolate converge Caffeine has evolved multiple times among plant species, but no one knows whether these events involved similar genes. Denoeud et al. sequenced the Coffea canephora (coffee) genome identified a conserved gene order (see Perspective by Zamir). Although this species underwent fewer duplications than related relevant caffeine genes experienced tandem that expanded their numbers within species. Scientists have seen independent expansions in distantly of tea...
Coffee quality, in the present context of overproduction worldwide, has to be considered as a main selection criterion for coffee improvement. After definition and an overview non genetic factors affecting its variation, this review focuses on involved control quality variation. Regarding complexity trait, different types are first presented. Then, great variation within between species is underlined, mainly biochemical compounds related (caffeine, sugars, chlorogenic acids, lipids). The...
We searched for quantitative trait loci (QTL) associated with the palm oil fatty acid composition of mature fruits E. guineensis Jacq. in comparison its wild relative oleifera (H.B.K) Cortés. The cross LM2T x DA10D between two heterozygous parents was considered our experiment as an intraspecific representative guineensis. Its QTLs were compared to published same traits interspecific Elaeis pseudo-backcross used indirect oleifera. Few correlations found pulp proportions and yield traits,...
The aim of this study was to investigate the molecular mechanisms underlying drought acclimation in coffee plants by identification candidate genes (CGs) using different approaches. first approach used data generated during Brazilian Coffee expressed sequence tag (EST) project select 13 CGs an silico analysis (electronic northern). second based on screening macroarrays spotted with plasmid DNA (coffee ESTs) separate hybridizations leaf cDNA probes from drought-tolerant and susceptible clones...
We chose an Elaeis interspecific pseudo-backcross of first generation (E. oleifera × E. guineensis) guineensis to identify quantitative trait loci (QTLs) for fatty acid composition palm oil. A dense microsatellite linkage map 362 spanned 1.485 cM, representing the 16 pairs homologous chromosomes in genus from which we traced segregating alleles both and grandparents. The relative linear orders mapped suggested probable absence chromosome rearrangements between genomes. total 19 QTL...
Lipids, including the diterpenes cafestol and kahweol, are key compounds that contribute to quality of coffee beverages. We determined total lipid content kahweol concentrations in green beans genotyped 107 Coffea arabica accessions, wild genotypes from historical FAO collection Ethiopia. A genome-wide association study was performed identify genomic regions associated with lipid, contents cafestol/kahweol ratio. Using diploid canephora genome as a reference, we identified 6,696 SNPs....
Drought is a widespread limiting factor in coffee plants. It affects plant development, fruit production, bean development and consequently beverage quality. Genetic diversity for drought tolerance exists within the genus. However, molecular mechanisms underlying adaptation of plants to are largely unknown. In this study, we compared responses two commercial cultivars (IAPAR59, drought-tolerant Rubi, drought-susceptible) Coffea arabica grown field under control (irrigation) conditions using...
Coffea arabica L. is an important crop in several developing countries. Despite its economic importance, minimal transcriptome data are available for fruit tissues, especially during development where compounds related to coffee quality produced. To understand the molecular aspects and grain development, we report a large-scale analysis of leaf, flower perisperm tissue development. Illumina sequencing yielded 41,881,572 high-quality filtered reads. De novo assembly generated 65,364 unigenes...
The present study shows transferability of microsatellite markers developed in the two cultivated coffee species ( Coffea arabica L. and C. canephora Pierre ex Froehn.) to 15 representing previously identified main groups genus Coffea. Evaluation genetic diversity available resources within development molecular transferable across are important steps for breeding species. We worked on with 60 using different strategies (SSR-enriched libraries, BAC gene sequences). focused our analysis 4...
Coffea canephora Pierre ex Frohener is a perennial plant originated from Africa. Two main groups, Guinean and Congolese, have already been identified within this species. They correspond to refugia in western central In paper we present the analysis of region that has not yet studied, Uganda. wild, one feral (once cultivated but abandoned for many years), two populations C. Uganda were evaluated using 24 microsatellite markers. Basic diversity, dissimilarity genetic distances between...
Base composition is highly variable among and within plant genomes, especially at third codon positions, ranging from GC-poor homogeneous species to GC-rich heterogeneous ones (particularly Monocots). Consequently, synonymous usage biased in most species, even when base relatively homogeneous. The causes of these variations are still under debate, with three main forces being possibly involved: mutational bias, selection GC-biased gene conversion (gBGC). So far, both gBGC have been detected...
In higher plants, the inhibition of photosynthetic capacity under drought is attributable to stomatal and non-stomatal (i.e., photochemical biochemical) effects. particular, a disruption metabolism Rubisco regulation can be observed. Several studies reported reduced expression RBCS genes, which encode small subunit, water stress. Expression RBCS1 gene was analysed in allopolyploid context C. arabica, originates from natural cross between canephora eugenioides species. Our study revealed...
Corynespora cassiicola is the causal agent of Leaf Fall (CLF) disease. CLF one most important fungal diseases rubber trees in Asia and Africa but disease outbreaks have not been reported South America. Cassiicolin, a small cysteine-rich glycoprotein secreted by pathogenic C. isolate CCP, was previously identified as potential effector tree. Recently, cassiicolin-encoding gene (Cas1) characterized shown to be expressed early phase infection. In this study, we investigated whether undetected...
SUMMARY Controlled irrigation during the dry period associated with adequate nitrogen (N), phosphorous (P) and potassium (K) fertilization led to accumulation of biochemical compounds in coffee beans considered as positive precursors beverage quality. Adult plants ( Coffea arabica ‘Rubi’) were cultivated using different water regimes (WR) conditions under climate Brazilian Cerrado. Coffee-bean physical characteristics evaluated well composition by near-infrared analysis. The K treatment...