A5006366231- Oil Palm Production and Sustainability
- Chromosomal and Genetic Variations
- Plant tissue culture and regeneration
- Coconut Research and Applications
- Plant Reproductive Biology
- Genetic Mapping and Diversity in Plants and Animals
- Date Palm Research Studies
- Rice Cultivation and Yield Improvement
- Plant Molecular Biology Research
- Plant Diversity and Evolution
- Genomics and Phylogenetic Studies
- Cassava research and cyanide
- Plant Disease Resistance and Genetics
- RNA and protein synthesis mechanisms
- Plant nutrient uptake and metabolism
- Postharvest Quality and Shelf Life Management
- Plant biochemistry and biosynthesis
- Genetic diversity and population structure
- Soybean genetics and cultivation
- Seed Germination and Physiology
- Agriculture and Rural Development Research
- Agricultural and Environmental Management
- Legume Nitrogen Fixing Symbiosis
- Plant and animal studies
- Photosynthetic Processes and Mechanisms
Institut de Recherche pour le Développement
2005-2023
Agropolis International
2001-2023
Diversité, adaptation et développement des plantes
2010-2023
Université de Montpellier
2019-2023
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
1999-2023
Digital Research Alliance of Canada
2023
Bioversity International
2023
Université Paris Cité
1997-2001
Laboratoire de Biologie du Développement
1997-2001
Centre National de la Recherche Scientifique
1997-2001
Summary Global demand for vegetable oils is increasing at a dramatic rate, while our understanding of the regulation oil biosynthesis in plants remains limited. To gain insights into mechanisms that govern synthesis and fatty acid ( FA ) composition palm fruit, we used multilevel approach combining gene coexpression analysis, quantification allele‐specific expression joint multivariate analysis transcriptomic lipid data, an interspecific backcross population between African palm, Elaeis...
We produced a unique large data set of reference transcriptomes to obtain new knowledge about the evolution plant genomes and crop domestication. For this purpose, we validated RNA-Seq assembly protocol perform comparative population genomics. validation, assessed compared quality de novo Illumina short-read assemblies using from two crops for which an annotated genome was available, namely grapevine sorghum. used same release 26 plants wild relatives, including still understudied such as...
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...
This is the first report of a systematic study genes expressed by means sequence tag (EST) analysis in oil palm, species Arecales order, phylogenetically key clade monocotyledons that not widely represented databases. Five different cDNA libraries were generated from male and female inflorescences, shoot apices zygotic embryos unidirectional sequencing was performed. A total 2411 valid EST sequences thus obtained. Cluster enabled identification 209 groups related 1874 singletons. Putative...
Abstract Background and aims Palms are vital to worldwide human nutrition, in particular as major sources of vegetable oils. However, our knowledge seed fruit lipid diversity the family Arecaceae is limited. We therefore aimed explore relationships between content, fatty acid composition respective tissues, phylogenetic factors biogeographical parameters. Methods Oil content were characterized seeds fruits 174 144 palm species respectively. Distribution, linear regression multivariate...
Summary We identified an Arabidopsis thaliana gene, AtMAP3Kε1, and a Brassica napus cDNA, BnMAP3Kε1 , encoding functional protein serine/threonine kinases closely related to cdc7p Cdc15p from Schizosaccharomyces pombe Saccharomyces cerevisiae respectively. This is the first report of cdc7‐related genes in non‐fungal eukaryotes; no such have as yet been Metazoans. The B. able partially complement cdc7 loss function mutation S. . RT–PCR situ hybridisation revealed that A. are expressed both...
Oil palm (Elaeis guineensis Jacq.) somatic embryos differ from zygotic in that they accumulate only small amounts of storage proteins. We compared the balance between deposition and degradation proteins during or embryogenesis germinative growth two types embryos. During mid to late embryogenesis, accumulated globulin 7S (GLO7A) gene transcripts were detected, whereas neither protease activity nor cysteine proteinase (CPR) detected. Globulin occurred after 8 days vitro germination was...
Sexual dimorphism, at both the flower and plant level, is widespread in palm family (Arecaceae), contrast to situation angiosperms as a whole. The tribe Chamaedoreeae of special interest for studies evolution sexual expression since dioecy appears have evolved independently twice this group from monoecious ancestor. In order understand underlying evolutionary pathways, it important obtain detailed information on structure development each main clades. Dissection light scanning electron...
Palms are without doubt one of the most important plant families from a human perspective and they vital to both ecological economic wellbeing world's tropical regions. Understanding how function is therefore an challenge palm biologists, who will be gladdened by appearance this new textbook Tomlinson, Horn Fisher. The anatomy palms does what it says on cover: provides reader with in-depth survey anatomical diversity within Arecaceae. This information given phylogenetic focus inclusion,...
The African rice Oryza glaberrima was domesticated from its wild relative barthii about 3000 years ago. During the domestication process, panicle complexity changed a with low in O. barthii, to highly branched carrying more seeds glaberrima. To understand basis of this differential development between two species, we conducted morphological and molecular analyses early development. Using X-ray tomography, analyzed developmental stages We uncovered evidence for wider rachis meristem than...
Developing high yielding varieties is a major challenge for breeders tackling the challenges of climate change in agriculture. The panicle (inflorescence) architecture rice one key components yield potential and displays inter- intra-specific variability. genus Oryza features two different crop species: Asian (Oryza sativa L.) African (O. glaberrima Steud.). One main morphological differences between independently domesticated species structure (or complexity) panicle, with O. displaying...
In order to improve the fidelity of clonal process developed for oil palm (Elaeis guineensis Jacq) by ORSTOM/CIRAD group, we are attempting identify mRNA and genomic markers screening mantled flowering abnormality found in typically 5-10% regenerated palms. Analyses genome size structure being performed using flow cytometry RAPD techniques. Studies methylation, which is thought play an important role induction somaclonal variation, under way. We analysing DNA from somatic...
Clonal propagation of oil palm (Elaeis guineensis Jacq., Arecaceae) through somatic embryogenesis has led to the production several million clonal plantlets date. Evaluation in field revealed occurrence variant palms (ca 5 %) showing an abnormal flower development, called mantled. Preliminary studies ploidy level and RAPD polymorphism have not any genomic changes that could be linked with phenotype. These results are consistent hypothesis epigenetic origin for abnormality. Levels global DNA...
Today, a range of biotechnological approaches, from somatic embryogenesis to biomolecular research, play an increasingly important role in breeding strategies for oil palm (Elaeis guineensis Jacq.). Clonal micropropagation. Methods cloning by vitro culture led the development micropropagation technique based on which was tested at pilot stage elite genotypes, thus enabling production high yielding clones. This phase allowed identification limiting factors associated with scaling-up, respect...
The book of palms is a lavishly illustrated, large-format 442-page celebrating the work German botanist Carl Friedrich Philipp von Martius (1794–1868). It reproduction latter's epic study palm family: Historia naturalis palmarum: opus tripartitum (Natural History Palms: in three volumes), published between 1823 and 1853. Born Erlangen, where he undertook his early botanical studies, was subsequently assigned task exploring flora Brazil, which carried out over number years. Later career...
Grain yield, which is one of the most important traits in rice breeding, controlled part by panicle branching patterns. Numerous genes involved control architecture have been identified through mutant and QTL characterization. Previous studies suggested importance several AP2/ERF transcription factor-encoding development, including AINTEGUMENTA/PLETHORA-like ( euANT/PLT ) genes. The ANT gene was specifically considered to be a key regulator shoot floral development Arabidopsis thaliana ....