A PhD position on eukaryotic phylogenomics is available at the University Paris-Sud (France) in the DEEM laboratory (Diversity, Ecology and Evolution of Microorganisms: http://www.ese.u-psud.fr/spip.php?rubrique7&lang=en). -Scientific context: Despite intense research in recent years, the general phylogeny of eukaryotes remains poorly resolved. The order of divergence of the major eukaryotic phyla and the settlement of essential metabolic and structural features are still insufficiently described. Many extant eukaryotic phyla emerged through the gain or loss of plastids carrying out photosynthesis. Plastid endosymbiosis is accompanied by a massive flow of Endosymbiotic Gene Transfers (EGT) from the symbiont to the host genome. The first plastid endosymbiosis in eukaryotes involved a cyanobacterium and an unknown host and gave rise to the supergroup Archaeplastida (green algae and plants, red algae, and glaucophytes). This initial endosymbiosis was followed by a number of subsequent endosymbioses where various heterotrophic hosts engulfed and converted green and red algae into the secondary plastids found in many eukaryotic phyla today. These, and their heterotrophic relatives, were shaped by secondary endosymbiosis but we still do not know when, how and to what extent. -Project: The goal of the PhD project is to decipher the role of secondary endosymbiosis in eukaryotic evolution by improving the genome sequence data for underrepresented phyla and providing a rigorous analysis of EGT traces in these genomes. Using next generation sequencing, we are producing high coverage transcriptomes of a variety of photosynthetic and heterotrophic species having strategic positions on the phylogeny of eukaryotes. The PhD will be in charge of analyzing these data by phylogenomic and comparative genomic methods to: 1) Enhance the resolution of the tree of eukaryotes, 2) detect traces of secondary endosymbiosis and attempt to infer when they occurred, 3) take advantage of this new genomic resources to understand the evolution and the settlement of original metabolic features characteristic of these eukaryotic groups. -Qualifications: Candidates must have an MSc degree and strong interest in early evolution and eukaryotic diversity and phylogeny as well as some experience in computational biology. -Application: The application should include 1) a motivation letter, 2) a detailed CV with grades/ranks, and 3) the names and contact information for at least two referees. This material has to be sent by e-mail to David Moreira (david.moreira@u-psud.fr) and Philippe Deschamps (philippe.deschamps@u-psud.fr). david.moreira@u-psud.fr
We should preserve biodiversity
Saturday, June 7, 2014
A PhD position on eukaryotic phylogenomics is available at the University Paris-Sud (France)
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