Project description
Studies into the betalain synthesis pathway elucidate the evolution of molecular complexity
Studying convergent evolution can help scientists better understand the genetic basis of the repeated emergence and optimisation of a metabolic pathway. The central enzyme in the betalain pathway, 4,5-DOPA dioxygenase extradiol (DODA), for example, has evolved four times via gene duplication and neofunctionalisation. The EU-funded ConvergentDODA project will explain the molecular basis underlying the repeated evolution of L-DOPA dioxygenase activity and determine the molecular evolutionary trajectories behind different enzymatic catalytic profiles across different origins of betalain synthesis. By investigating the molecular basis of the convergent evolution of high DODA activity, the project will address key questions in evolutionary biology such as the respective roles of parallel evolution, epistasis, adaptive constraint and contingency.
Objective
As sessile organisms, plants have evolved a diverse array of specialized metabolites to respond to their environments. Specialised metabolites are frequently restricted to particular plant lineages, such as the specialised betalain pigments, which are unique to the flowering plant order Caryophyllales - betalains will be familiar as the colour of beetroot. However there are also striking examples of convergent evolution, with the same specialized metabolites emerging independently in different lineages. The host laboratory has recently shown that the betalain biosynthesis pathway has evolved multiple times within Caryophyllales. Underpinning four convergent origins of betalain pigmentation, the central enzyme in the betalain pathway, 4,5-DOPA-extradiol -dioxygenase (DODA), has evolved four times via gene duplication and neofunctionalization. Preliminary data indicate that DODA enzymes from different origins have distinct kinetic profiles, of significance to biotechnology. In the proposed research, I will elucidate the molecular basis underlying the repeated evolution of L-DOPA dioxygenase activity, and resolve the molecular evolutionary trajectories underlying different enzymatic catalytic profiles across different origins of betalain synthesis. Convergent evolution provides a natural experiment in understanding the genetic basis of repeated emergence and optimization of a metabolic pathway. In exploring the molecular basis of the convergent evolution of high DODA activity, I expect to address many central questions in evolutionary biology, including the respective roles of parallel evolution, epistasis, adaptive constraint, and contingency, in the evolution of molecular complexity.
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.
- engineering and technology materials engineering colors
- natural sciences biological sciences evolutionary biology
- natural sciences biological sciences biochemistry biomolecules proteins enzymes
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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.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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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.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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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) H2020-MSCA-IF-2020
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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.
CB2 1TN CAMBRIDGE
United Kingdom
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.