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Members - Ecological genomics of adaptation in plant communities
Fabrice Roux, DR CNRS
Fabrice Roux obtained his Ph.D. in 2004 on the prevention and management of herbicide resistance using Arabidopsis thaliana as an experimental model (under the supervision of Xavier Reboud, laboratory of Biology and Management of Weeds, INRA Dijon). After his Ph.D., he spent one year as a junior lecturer in the laboratory of Genetics and Evolution of Plant Populations (GEPP, University of Lille 1) and worked on the evolution of early-flowering in plants. He then spent a too short period (only one year) in the laboratory of Joy Bergelson (University of Chicago), where he became interested in identifying the genetic basis of quantitative resistance in the pathosystem A. thaliana-Pseudomonas viridiflava. Recruited as a CNRS researcher in 2006 at the GEPP (University of Lille 1), he developed his own research theme on ecological genomics of adaptation in A. thaliana. In 2012, he then co-led the research theme 'Global change: from ecological genomics to community ecology’. The research of Fabrice mainly focused on (i) the identification of the genetic basis of complex adaptive traits with the desire to replace A. thaliana in an ecologically realistic context, and (ii) the study of adaptation at different spatial and temporal scales. Since July 2013, Fabrice joined the LIPM after obtaining a junior starting grant from the Labex TULIP (Toulouse). He is currently developing a project on ecological interactions of organism – organism interactions. He is particularly interested in identifying the genetic basis underlying coevolution in plant - pathogen and plant – plant interacting systems.
Fabienne Vailleau, Associate Professor INP-ENSAT
Fabienne Vailleau obtained her Ph.D. in 2003 at the University of Toulouse, Ph.D. realized at the LIPM in Dominique Roby’s group, on the Arabidopsis thaliana/Xanthomonas campestris pv. campestris pathosystem. After her Ph.D. she was Assistant Professor at the INP-ENSAT, where she set up the Medicago truncatula/Ralstonia solanacearum pathosystem. She was then recruited in Michel Petitprez’s group at the INP-ENSAT with a position of Associate Professor, where she continued her research on plant-bacteria interactions, giving lectures at the same time at INP-ENSAT in Plant Pathology and Weeds Science. From 2008 to 2015, she was the head of the 3rd year of specialization “Plant Agrobiosciences’. In 2008, Fabienne joined LIPM to perform her research in the group of Stéphane Genin and Christian Boucher. She worked on the post translational mechanisms required for the pathogenicity of the bacterium R. solanacearum. She obtained her Habilitation in 2016, and reoriented her projects on searching for plant proteins targeted and manipulated by R. solanacearum effectors, especially with approaches using association genetics. In 2020, she joined the team of Fabrice Roux to continue and integrate her work into a more global research theme in order to characterize and understand the molecular dialogue between the plant and its associated microbial cortege. In this context, she is currently developing a theme in the ECOGEN team on plant-microbiota-pathobiota interactions.
Mathieu Hanemian, researcher INRAE
Mathieu Hanemian learned molecular biology during his PhD at the LIPM (supervision Yves Marco) about the susceptibility mechanisms of Arabidopsis thaliana in response to the bacteria Ralstonia solanacearum. Then, he carried out a 1st postdoc in the team of Olivier Loudet at the INRA Versailles, where he used quantitative genetics coupled with phenomics to identify the genetic and molecular basis of vegetative growth in A. thaliana. The use of natural variation aroused his interest in the ecological origin of plant adaptation and the biology of evolution. During his 2nd postdoc in the team of Cris Kuhlemeier at the University of Berne, he thus studied the pollinators impact on the speciation of the Petunia genus by combining quantitative genetics, genomics and molecular biology. He was recruited in 2019 as a research scientist by INRAE to characterize the molecular mechanisms underlying plant-plant interactions.
Baptiste Mayjonade, IE INRA
Baptiste obtained a Master degree at the University of Limoges in 2010. He spent two years in the laboratory of molecular biology of Limagrain Europe (Chappes). In the context of molecular breeding and marker-assisted selection, he developed molecular markers on crops. In 2012, he joined the LIPM to work on the genetics and genomics of response to biotic and abiotic stresses in sunflower. He was in charge of projects related to transcriptomics and genomics. He was also involved in the development of technologies in molecular biology. Since September 2015, he has a permanent position in the group of Fabrice Roux to work on the morphological and genomic characterization of plant communities and microbiomes.
Chrystel Gibelin-Viala, AI INRAE
Chrystel Gibelin-Viala was recruited at INRA Poitou-Charentes in 2000. She worked in the molecular biology laboratory of URP3F, unit which study the functioning of the forage crop on grassland. She joined the LIPM in 2009 in the group of Clare Gough and Julie Culimore, where she studied the arbuscular mycorrhizal symbiosis using potential mutants of mycorrhization. She also developed genetic approaches to dissect the host range control in the rhizobium-legume symbiosis. Since January 2020, she joined the team of Fabrice Roux, ECOGEN (Ecological genomics of adaptation in plant communities). Her main missions are focused on the plant-microbiota-pathobiota interactions, one of the ECOGEN team themes of research. One of her main objectives is to contribute to characterize and understand the molecular dialog between Arabidopsis thaliana and its microbial cortege. Chrystel has skills in molecular biology (DNA extraction, PCR, genotyping), microscopy, plant biology (plant supply, plant experimentation, phenotyping), microbiology.
Rémy Zamar, CDD technician
After achieving a BEP in horticultural production, Rémy obtained a BAC Pro degree in landscaping. In July 2018, Rémy joined the team in the context of the OPTIMA project, aiming at testing local adaptation of Arabidopsis thaliana to climate, soil and microbiota.
Choghag Demirjian, PhD student
Choghag Demirjian obtained her master degree specialized in plant production from the Lebanese University in 2016. She did her master internship at the International Center for Agricultural Research in the Dry Areas (ICARDA), where she worked on the identification of drought tolerance QTLs in cultivated wheat. Choghag joined LIPM as a PhD student in January 2019, under the co-supervision of Fabienne Vailleau and Richard Berthomé on the project entitled “Deciphering Arabidopsis thaliana responses to Ralstonia solanacearum virulence factors through the study of plant natural variation”. The aim of her Ph.D. project is to study interesting type III effectors of Ralstonia solanacearum and to characterize their role in plant response using natural plant variation.
Daniela Ramirez, PhD student
Daniela obtained a Bachelor degree in Biotechnology Engineering in 2013, then she obtained her Master’s degree in Genetics and Molecular Biology in the center for research and advanced studies (Cinvestav) in Mexico City in 2016, where she studied the microbiota functionality of the distal colon of Mexican population. In 2017 she worked in a Pharmaceutical Product Development (PPD) company in Mexico as a Clinical Trial Coordinator. She joined the LIPM in October 2019 to start her PhD under the supervision of Fabrice Roux and Fabienne Vailleau aiming to establish a genomic map of local adaptation to beneficial leaf bacteria species in Arabidopsis thaliana.
Nargess Razavi, PhD student
Nargess Razavi obtained her master degree at INP-ENSAT University, in AgroBiosciences in 2017. She did her Master project in Stephane Genin’s group under the supervision of Fabienne Vailleau to study hpaP mutant of Ralstonia solanacearum against the natural diversity of Arabidopsis thaliana. She started her PhD at LIPM in November 2017 with an INRA-SPE/Occitanie-Toulouse Region grant on the following topic: “Responses of Arabidopsis thaliana to the virulence factors of Ralstonia solanacearum via the study of natural diversity of the two partners”, under the co-supervision of Fabienne Vailleau and Richard Berthomé.