Watch our documentary: "Searching for the mangrove rivulus"
The Laboratory of Evolutionary and Adaptive Physiology LEAP (Silvestre Lab) from the University of Namur, Belgium, is one of the 4 laboratories belonging to the Research Unit in Environmental and Evolutionary Biology (URBE) within the Department of Biology. It is also a member of the Institute of Life, Earth and Environment (ILEE).
Our researches belong to integrative, comparative and evolutionary physiology. We aim to investigate the impacts of environmental changes (pollution, temperature, salinity, etc) on aquatic organisms at different levels: molecular, physiological, phenotypic. Different aquatic species are studied with priorities given to fish models. If we are using zebrafish as a common laboratory model, our main current interests concern two killifish species: the mangrove rivulus, Kryptolebias marmoratus, and the Turquoise killifish, Nothobranchius furzeri. The former has a unique mixed-mating system that allows self-fertilization, while the latest has a very short life-span (around 20 weeks). Our approaches try to understand how these organisms are affected by environmental stress and how they can acclimate, adapt and evolve. The mangrove rivulus, with its very low genetic diversity, is a perfect model to study the role of epigenetics in adaptation and evolution, while the turquoise killifish is great to decipher the interplay between pollutants and aging. We have developed a workflow of DNA methylation analysis and strive to correlate environmental cues, epigenetic mechanisms, molecular phenotype (at transcriptomic and proteomic levels) and organism phenotype, mainly of behavioural traits. We are combining laboratory experiments (e.g. pollutant exposure, DNA methylation analysis, fish respirometry, fish behaviour) with bioinformatic analyses and field experiments and sampling (in Florida and Belize). All together we aim at investigating proximate (mechanistic) and ultimate (evolutionary) consequences of environmental changes on organisms.
Recent News
- Frédéric has been reelected at the RBZSJanuary 18, 2024After a first term of 2 years, Frédéric Silvestre has been reelected at the Presidency of the Royal Belgian […]
- LEAP was at SICB annual conference !January 18, 2024Frédéric Silvestre was participating to the annual conference of the Society for Integrative and Comparative […]
- Congrats to Justine for her nomination at “Bauchau Award”December 21, 2023Our teaching assistant Justine Belik has showed all her scientific and pedagogic skills during the 2023 […]
- PhD theses defensesDecember 21, 2023December is usually the month of the PhD theses defenses. Frédéric Silvestre was in the jury board of 3 […]
- New FNRS project at LEAPDecember 21, 2023We are pleased to announce that the research project entitled “Epigenome stability in mangrove […]
- Festival International Nature Namur 2023October 20, 2023The FINN is a festival dedicated to nature movies and photography. Every year, UNamur has a booth where the […]
- Julie Hétru, our new PhD studentOctober 20, 2023Since the beginning of October, we’ve been pleased to welcome Julie Hétru, MSc, in our lab to start a […]
- Master thesis proposals at LEAP for 2024October 10, 2023LEAP is proposing 2 topics for new master students who are dedicated to study killifish in a perspective of […]
“It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is most adaptable to change.” Charles Darwin
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