Objective
Recent advances in environmental microbiology, metagenomics and phylogenomics strongly suggest that the eukaryotic cell evolved from symbiotic consortia involving an Asgard archaeon and, at least, the alphaproteobacterial ancestor of the mitochondrion. However, many genes of prokaryotic origin in the last eukaryotic common ancestor (LECA) appear to originate neither from archaea nor alphaproteobacteria, suggesting that other bacteria (e.g. Deltaproteobacteria) may have contributed to eukaryogenesis as additional symbionts or gene donors. To ascertain the origin of these genes, it is essential to better understand the ecology of symbiotic microbial consortia involving Asgard archaea (AA), and in particular, to identify the partners with which they interact in natural ecosystems. In this project, I will combine metagenomics, phylogenomics, fluorescence-activated single-cell/consortium sorting, high-throughput microfluidics, state-of-the-art fluorescence and electron microscopy techniques and cultivation approaches to identify and characterize members of AA syntrophic consortia and their associated viruses in a broad variety of microbial mats and oxygen-poor environments. With this information, I aim to i) identify the partners of AA syntrophic consortia across ecosystems, determine whether they co-evolve and unravel their ecological preferences; ii) characterize the metabolic interactions and phenotypic properties of AA symbiotic consortia in culture and/or from sorted consortia populations; iii) characterize the cell ultrastructure and potential presence of endomembranes in members of AA consortia, their three-dimensional organization and their spatial distribution in microbial mats; and iv) identify potential bacterial symbiotic partners involved in eukaryogenesis, in addition to the mitochondrial alphaproteobacterial ancestor, and/or gene donors to the LECA or its Asgard archaeal ancestor. Our results should substantially advance understanding of eukaryogenesis.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences physical sciences classical mechanics fluid mechanics microfluidics
- natural sciences biological sciences microbiology bacteriology
- natural sciences biological sciences microbiology virology
- natural sciences physical sciences optics microscopy
- natural sciences biological sciences ecology ecosystems
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.1 - European Research Council (ERC)
MAIN PROGRAMME
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-ERC - HORIZON ERC Grants
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2023-ADG
See all projects funded under this callHost institution
Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
75794 PARIS
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.