Objective
Understanding the genetic mechanisms that generate and preserve diversity is a central goal in biology. Chromosomal inversions, segments of a chromosome that are reversed in order, play a key role in the formation of locally adapted forms across a broad range of different species. They suppress recombination in heterozygotes, thereby maintaining large genomic blocks consisting of sets of locally adaptive alleles that can further diverge and evolve independently. Yet, exchange (‘gene flux’) between alternative arrangements can occur. It may be crucial for maintaining inversion polymorphisms and facilitating adaptation by reducing mutational load and generating novel allele combinations. However, the frequency of gene flux events, how they interact with selection, and their overall consequences for evolutionary dynamics and adaptation are still poorly understood. This project will investigate the frequency of gene flux events and their interplay with selection in a model system for adaptation, the threespine stickleback. In this ancestrally marine species, freshwater forms have independently evolved multiple times over very short timescales, despite ongoing gene flow from marine populations. Three ancient chromosomal inversions appear to play key roles in this process. However, in some freshwater systems, such as large lakes, the marine inversions persist, raising questions about their adaptive value in these environments. This project will use an ambitious multi-scale approach, from studying gene flux events in a single meiosis to large-scale global patterns to uncover the evolutionary dynamics of these special genomic regions and more generally advance our knowledge of the genetic architecture of adaptation.
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 biological sciences genetics heredity
- natural sciences biological sciences genetics chromosomes
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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.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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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) HORIZON-MSCA-2025-PF
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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.
3012 BERN
Switzerland
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.