I am a biologist interested in very broad questions about the origin and early evolution of life on Earth, with a special focus on microbial lineages, which cover the vast majority of biological diversity.
Many years ago, I had the chance to get an old microscope at home. It opened to me a new world full of wonderful organisms. Since then, I have always been interested in the diversity and evolution of microorganisms from the three domains of Life, trying to reconstruct their phylogeny and to understand how their genomes evolve. More recently, I also became interested in the evolutionary relationship between living (cells) and non-living (viruses) organisms.
I am a microbial ecologist. The aim of my research activities is to better appreciate microbial diversity, to understand the processes that structure this diversity and to identify the role played by microorganisms in the functioning of aquatic ecosystems. more information...
Phone: 0033 169 157 989
My primary research interests are in evolutionary microbiology. I am particularly interested in the origin and evolution of the eukaryotic cell. My investigations revolve broadly around three topics: (1) Understanding the relationships of eukaryotes with the other two domains of life (Archaea and Bacteria); (2) Characterizing the evolution of key features of the eukaryotic cell ; (3) Investigating the phylogenetic relationships within the Tree of eukaryotes as well as the horizontal exchange of genetic material that might have occurred between distantly related eukaryote lineages. To tackle those, I have mainly used comparative (meta)genomic and molecular phylogenetic approaches, and I have focused on understudied unicellular eukaryotes (protists).
Phone +33 (0)1 69 16 63 42
Jeanne is a PhD student co-supervised with our collaborator Karim Benzerara (IMPMC, Sorbonne Université, Paris)
2022-2023 Marina Grilo (M2) Agathe Struillo (M2)
2021-2022 Romain Leroy (M2) Juliette Thiébaut (M2)
2020-2021 Pierrick Lenormand (M2), Guillaume Peugnet (M1), Anouk Cohen-Solal (L1), Yannis Arab (L2), Alix Catry (M1 INSA), Chloé Barthalon (L3)
2019-2020 Jeanne Chaumont, David Boulesteix (M2), Dave Edison Rojas (M2 Erasmus), Iris Rizos (M1)
Sergey A. Karpov is a collaborator who has visited our lab in different occasions for several months in 2015-2018
My research interests are focused on understanding the nature of the mitochondrial ancestor, and the early evolution of mitochondria and eukaryotes. I am currently working on analyzing metagenomes from diverse and poorly sampled environments in search of novel alphaproteobacteria. I am also working on inferring robust and artefact-free phylogenies for the Alphaproteobacteria and mitochondria.
My research has focused mainly on the biodiversity and evolution of protists living in aquatic and symbiotic environments. I have paid particular attention to the discovery of novel marine protists, characterization of the ultrastructure (e.g. microtubular cytoskeletons) and phylogenetic relationships and investigation of symbiotic relationships.
Marie Ragon (2007-2011), Estelle Couradeau (2008-2012), Charles Bachy (2008-2012), Jonathan Lombard (2009-2012), Céline Petitjean (2009-2013), Marianne Simon (2010-2014), Aurélien Saghaï (2013-2016), Rafael Ponce-Toledo (2014-2018), Jodie Belilla (2017-2020), Guillaume Reboul (2017-2020), Gwendoline David (2017-2020), Luis Javier Galindo (2017-2020), Solène Irion (2017-2020)
Emmanuelle Gérard (2003-2005), Jan Slapeta (2003-2005), Enrique Lara (2007-2008), Ana Belén Martin-Cuadrado (2007), Achim Quaiser (2007-2008), William Marande (2008-2009), Philippe Deschamps (2009-2010), Marie Ragon (2011-2012), Giselle Walker (2014-2015), Kamil Szafranski (2015-2017), Romain Derelle (2015-2016), Magdalena Ruiz (2016-2017), Albert Reñé (2017), Hélène Timpano (2016-2018), Guifré Torruella (2016-2021)