Objective
Natural selection is a pillar of evssNatural selection is a pillar of evolutionary biology: it tends to fix beneficial mutations and remove deleterious ones. But the factors that determine selection efficacy are yet poorly understood. A proposed factor is the interaction between mutations? dominance and ploidy level: recessivity should reduce selection efficacy in diploids but not in haploids. Methodological limits make this challenging to test in species with a diploid-dominant life cycle. Yet, a whole phylogenetic clade under-explored in genomics gathers all the attributes to tackle this question: Bryophytes. Their life cycle is characterized by alternating a long haploid phase (gametophyte) with a short diploid phase (sporophyte), both phases being macroscopic. It is ideal for shedding light on what drives selection efficacy within and between species; thus, improving our understanding of adaptation and speciation.
1 How ploidy affects the efficacy of adaptive and purifying selections within species? Using comparative genomics, I will empirically test i) if selection is more efficient for haploid-biased genes (i.e. expressed primarily in the gametophyte) than diploid-biased genes, and ii) if that difference is reinforced in species with a more complex sporophyte.
2 How ploidy affects the efficacy of selection against hybridization between species? With theoretical developments, I will quantify the extent to which the length of gametophytic and sporophytic phases influences the rate of accumulation of reproductive barriers against interspecies introgression. These predictions will be confronted with genomic estimates by developing a statistical inference method.
3 How efficient is selection in non-recombining genomes? I will take advantage of the Bryophytes? U/V sexual system to assess the extent to which selection efficacy is reduced on their sex chromosomes. I will also tackle an overlooked issue: are U/V sex chromosomes efficient barriers to introgression?
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 mutation
- natural sciences biological sciences genetics chromosomes
- natural sciences biological sciences genetics genomes
You need to log in or register to use this function
We are sorry... an unexpected error occurred during execution.
You need to be authenticated. Your session might have expired.
Thank you for your feedback. You will soon receive an email to confirm the submission. If you have selected to be notified about the reporting status, you will also be contacted when the reporting status will change.
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.
-
HORIZON.1.1 - European Research Council (ERC)
MAIN PROGRAMME
See all projects funded under this programme
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
See all projects funded under this funding scheme
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-2021-STG
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.