Project description
The evolution of the epigenetic mechanism of DNA methylation
Cytosine DNA methylation is a major form of DNA modification in the genome that plays a critical role in chromatin structure and gene expression. The methylation of silent transposable elements and constitutively transcribed genes is the best-studied DNA methylation process in vertebrates, plants and fungi. The methylation genes are not always orthologous across divergent lineages and could be the products of convergent evolution. The EU-funded METHYLEVOL project will study the evolution of DNA methylation, determining its role across eukaryotic diversity. Using state-of-the-art genomic techniques, experimental manipulations and computational analyses, the research will link experimental epigenomics to macro-evolutionary comparative genomics, revealing functions of DNA methylation assembled throughout evolution.
Objective
Cytosine DNA methylation is a major component of eukaryotic chromatin, yet extensive variation of methylation patterns occurs throughout eukaryotes. So far, the roles of DNA methylation have been mostly characterized in vertebrates, plants and fungi, where two common patterns have emerged as potentially ancestral within eukaryotes: methylation of silent transposable elements and methylation of constitutively transcribed genes (gene body methylation). However, the genes responsible for depositing methylation are not always orthologous across divergent lineages, so these common patterns could instead be the product of convergent evolution. To discern between these alternatives, we first need to correct the taxon sampling bias that hampers our understanding about the evolution of DNA methylation.
In this project we will determine the roles of DNA methylation across vastly underexplored eukaryotic diversity. We will use state-of-the-art genomic techniques, experimental manipulations and computational analyses to trace the evolutionary conservation of methylation-dependent transposable element silencing across a wide range of unicellular eukaryotes, using methylation-depleting drugs and bisulfite sequencing. We will then assess the roles of gene body methylation in an invertebrate to unveil similarities with plants and shed light on why vertebrates transitioned to hypermethylated genomes. Finally, we will study the evolution of proteins able to bind and interpret DNA methylation across disparate eukaryotes, since ultimately these proteins link DNA methylation and its regulatory functions.
Through linking experimental epigenomics to macro-evolutionary comparative genomics this project will reveal how different functions of DNA methylation assembled throughout evolution. In turn, this evolutionary perspective will allow a better understanding of the genome regulatory roles of this base modification and its impact on genome composition in plants and animals.
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 DNA
- natural sciences biological sciences biochemistry biomolecules proteins
- natural sciences biological sciences genetics genomes
- natural sciences biological sciences genetics epigenetics
- natural sciences biological sciences zoology invertebrate zoology
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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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H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC)
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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.
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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.
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Call for proposal
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E1 4NS LONDON
United Kingdom
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