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Reconstruction of specialized metabolite evolution through molecular switches

Project description

How plants evolve new colours and traits

In the plant world, novel traits like specialised metabolites can provide fitness advantages, driving evolution. Certain plant groups have completely replaced the red pigment anthocyanin with biochemically distinct betalains, but why and how these changes occur remains a mystery. With this in mind, the ERC-funded ROSE project aims to uncover how plants’ gene regulatory networks might act as switches, allowing one metabolic pathway to replace another without coexistence. Researchers are identifying these regulatory networks, analysing how pathway exchanges affect plant fitness and studying the impact on crop domestication. By exploring the role of gene switches in metabolite evolution, ROSE could unlock new possibilities in crop improvement and bioengineering, with profound implications for evolutionary research.

Objective

Novel traits can provide fitness advantages and drive evolution. New specialised metabolites are traits that arose in different plant lineages, and even replaced existing metabolites. Why, and how almost universal metabolic pathways can be replaced in entire groups of species by biochemically distinct pathways without persistence of any species producing both metabolites remains unknown. Components of gene regulatory networks that control such pathways might act as regulatory switches that flip between pathways.

The replacement of the widely conserved red pigment anthocyanin by the biochemically distinct betalains offers a unique opportunity to understand the integration of novel traits into existing regulatory systems. Notably, no plant species producing both anthocyanins and betalains has yet been identified, but both show similar environmental responses. The unification of systems biology with population and molecular genomics allows to elucidate the role of gene regulatory networks and regulatory switches in metabolite evolution.

Given the great importance of understanding evolutionary innovation and the potential use for metabolic engineering, our work promises to be groundbreaking and have profound impact on many different fields of evolutionary and genetic research.
Specifically, our work plan includes the following aims:
I. Identify regulatory networks and switches that enabled the exchange of metabolic pathways
II. Analyze the fitness consequences of reciprocal pathway exchange and regulatory switching
III. Reveal the short-term selection consequences of metabolites during the domestication of food crops

Understanding how metabolic pathways can be exchanged in plants will provide insights into the important embedding of evolutionary innovation into existing systems with potential practical applications for crop improvement and bio-engineering.

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HORIZON-ERC - HORIZON ERC Grants

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(opens in new window) ERC-2024-STG

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Host institution

UNIVERSITAT ZU KOLN
Net EU contribution

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.

€ 1 498 000,00
Address
ALBERTUS MAGNUS PLATZ
50931 KOLN
Germany

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Region
Nordrhein-Westfalen Köln Köln, Kreisfreie Stadt
Activity type
Higher or Secondary Education Establishments
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Total cost

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.

€ 1 498 000,00

Beneficiaries (1)

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