UMR DIADE : Joint Research Unit

The UMR DIADE is a Joint Research Unit, with a structure that relies on 8 different research groups, under the principal tutorship of IRD and UM2 and secondary tutorship of CIRAD and CNRS. DIADE has a permanent staff of 79 people, including 57 research officers, 4 researchers-lecturers and 18 technical staff. More than twenty members of UMR DIADE are qualified as HDR (Habilité à Diriger les Recherches: French Research Director Diploma), thus meaning that the Unit has an important capacity for training, in collaboration with the University of Montpellier and many other institutions in the tropical and Mediterranean regions.

Research projects at UMR DIADE (Plant Diversity Adaptation and Development) are aimed at understanding the nature and roles of various mechanisms underlying:

  • the structural and functional diversification of the genome of tropical plants,
  • the diversity and structure of their populations during the speciation process,
  • adaptation to environmental or human-driven changes.

Research works are backed by a nucleus of competencies involving genetics, epigenetics, developmental biology, physiology, systematic, evolution. They will involve when necessary many other approaches including modeling, remote sensing, ecology … Studies will also benefit from parallels between model plants (rice, Arabidposis, tomato, poplar) and plants of agricultural or ecological interest (coffee trees, filao, yam, maize, palms, millets).

Various levels of analysis are under consideration, from the single cell to complex of species. Thus we will tackle: i) the precise regulation of the expression of key developmental genes; ii) the control of developmental transitions; iii) the history of genes families in the light of evolution; iv) molecular determinants (genes or gene networks) of phenotypic variation of characters of agricultural or ecological interest; v) dynamics and plasticity of genomes, dynamics and diversity of populations in response to ecological,  human factors (organization of genetic diversity, adaptation to environmental changes, domestication) or biological (genomic shocks).

Our research deals with the domains of functional and evolutionary biology. They integrate the expertise acquired by research groups in various biological models with new tools and concepts from modern genomics. Indeed, the emergence of genomics has deeply modified our understanding of the functioning of genomes, the mechanisms of heredity and our interpretation of the contribution of the genotype to the elaboration of the phenotype.

Studies also benefit from parallels between model plants (rice, Arabidposis, tomato, poplar) and plants of agricultural or ecological interest (coffee trees, filao, yam, maize, palms, millets).


mais.jpg

 © Olivier Leblanc

 

Various Studies are performed at different levels from the single cell to complexes of species. Thus we tackle:

  • the precise regulation of the expression of key developmental genes;
  • the control of developmental transitions;
  • the history of gene families in the light of evolution;
  • molecular determinants (genes or gene networks) of phenotypic variation of characters of agricultural or ecological interest;
  • dynamics and plasticity of genomes, dynamics and diversity of populations in response to ecological, human factors (organization of genetic diversity, adaptation to environmental changes, domestication) or biological (genomic shocks).


Our research is concentrated in the area of functional and evolutionary biology. It integrates the expertise acquired by research groups in various biological models with new tools and concepts from modern genomics. Indeed, the emergence of genomics has deeply modified our understanding of the functioning of genomes, mechanisms of heredity and our interpretation of the contribution of the genotype to the elaboration of the phenotype.

Distribution of trainees and visitors shows that 62% are from overseas : 20% are from Africa-Madagascar, 15% are from Asia, 12% are from Central and Latin America and 15% are from Northern Africa and the Middle-East. Additionaly, 47% non permanent staff are 39% European students (mainly at Master level, from Montpellier University, France). The PhD students account for 25% of the trainees. The Ph.D.account is 25% of the trainees.

 

RESEARCH LABS

REDG : Epigenetic control and seed development

RHIZOGENESIS

BDP : Palm Developmental Biology

GGR : Rice Genome and Genetics (page not available in english)

EVODYN : EVOlution and DYNamics of genomes

DYNADIV : DYNamics of DIVersity

DESSITROP : DESSIcation tolerance and conservation of biodiversity of TROPical and mediterranean plant species 

SMART : Secondary Metabolites: Activities and Regulation in Tropical plants (page not available in english)

capmeditrop1.jpg © Serge Hamon

News

 

Publications :

 

Gigwa – Genotype investigator for genome-wide analyses. Guilhem Sempéré, Florian Philippe, Alexis Dereeper, Manuel Ruiz, Gautier Sarah, Pierre Larmande. (2016). Gigascience. 5 :25.

 

Featured article of The Plant Journal, september 2016 :

Gene coexpression network analysis of oil biosynthesis in an interspecific backcross of oil palmChloé Guerin, Thierry Joët, Julien Serret, Philippe Lashermes, Virginie Vaissayre, Mawussé D. T. Agbessi, Thierry Beulé, Dany Severac, Philippe Amblard, James Tregear, Tristan Durand-Gasselin, Fabienne Morcillo, Stéphane Dussert. (2016). The Plant Journal (2016) 87, 423–441.