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Unraveling the role of transgenerational epigenetic inheritance mediated by paramutation in natural animal populations.

Project description

Exploring epigenetic inheritance in fruit flies

Rapid adaptation to changing environments is crucial in evolution. Transgenerational epigenetic inheritance, like paramutation, facilitates this adaptation. However, paramutation’s role in natural animal populations remains unexplored. With the support of the Marie Skłodowska-Curie Actions programme, the DrosoParamutation project will study paramutation in Drosophila melanogaster populations (groups of the common fruit fly species). Researchers aim to uncover how paramutation drives transgenerational epigenetic inheritance and gene expression variation. They will examine paramutation’s response to environmental changes and its stability across generations. They will also explore molecular mechanisms involving insulator proteins like Su(Hw) and 3D chromatin conformation. This project sheds light on paramutation’s role, bridging genetics, epigenetics and chromatin structure in natural settings.

Objective

Understanding how organisms rapidly adapt to changing environments is a fundamental question in evolutionary biology. Transgenerational epigenetic inheritance (TEI) has been proposed as a mechanism that allows organisms to respond flexibly to environmental variation and thus plays a central role in rapid adaptation to fluctuating environments. A compelling example of this process is paramutation, in which epigenetic information is transferred from one allele to another, leading to heritable changes in gene expression across generations. However, our understanding of paramutation in natural animal populations remains limited, with most evidence coming from laboratory models. This knowledge gap hinders our understanding of the role of paramutation in nature.

Here, we will study paramutation in different natural populations of Drosophila melanogaster to investigate its potential to drive transgenerational epigenetic inheritance and gene expression variation that can shape evolution. We will investigate the responsiveness of paramutation to environmental changes and its heritable stability across generations. We will also establish a model to dissect the molecular mechanisms of paramutation regulation, assessing the role of insulator proteins such as Su(Hw) and 3D chromatin conformation. This project will provide a comprehensive investigation of the role of paramutation in natural animal populations at multiple levels of information, including genetics, epigenetics, gene expression, and 3D chromatin structure.

This research proposal aims not only to determine the biological relevance of a case of transgenerational epigenetic inheritance such as paramutation in natural animal populations but more importantly to provide an excellent model system for its in-depth molecular dissection.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2023-PF-01

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Coordinator

AGENCIA ESTATAL CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
Net EU contribution
€ 181 152,96
Address
CALLE SERRANO 117
28006 Madrid
Spain
Region
Comunidad de Madrid Comunidad de Madrid Madrid
Activity type
Research Organisations
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Total cost
No data