Project description
The evolution of vertebral diversity in cichlids
One of biology’s greatest questions is how phenotypes evolve to generate the diversity of forms in the natural world. Vertebrate body shape offers a clear example, with species ranging from the round ocean sunfish to elongated snakes. One factor in these differences is variation in the axial skeleton and vertebrae, particularly in their number. The ERC-funded COUNTS project aims to explore this evolutionary process using Lake Malawi cichlids, a diverse group of fish which exhibit varying vertebral counts. By combining experimental embryology, single-cell technologies, microscopy and mathematical modelling, COUNTS will investigate how developmental processes like gastrulation and somitogenesis differ across species, shedding light on how increased vertebral counts evolve. This work could inform future regenerative medicine and climate adaptation studies.
Objective
One of the fundamental and most longstanding questions in biology is how phenotypes evolve to generate the incredible diversity of forms that surround us in the natural world. Vertebrate body shape is a good example of this, with species’ forms ranging from the rounded ocean sunfish to elongated snakes, and everything in between. The evolution of vertebrate body shapes has been accompanied by significant variation to the axial skeleton and the vertebrae that compose it, which can vary in size and morphology, but crucially also in number, ranging from less than 10 to several hundred. In COUNTS I propose an inter-disciplinary approach to uncover the developmental drivers of phenotypic diversity in vertebrates by using Lake Malawi cichlid fishes as a model system to investigate the evolution of increased vertebral counts.
The diverse morphology, conserved genomes, close-relatedness, and ability to hybridise of these fishes makes them the ideal system in which to study how the evolutionary modification of developmental mechanisms has led to phenotypic diversity, in this case by evolving increased vertebral counts. The COUNTS project will combine state-of-the-art experimental embryology, single cell technologies, microscopy, and mathematical modelling to ask how developmental processes differ in three Lake Malawi cichlid species that have convergently evolved increased vertebral counts, and two that retain ancestral numbers. Specifically, we will characterise differences in two developmental processes known to play important roles determining total vertebral counts - gastrulation and somitogenesis - and use data-driven mathematical modelling to ask how these differences might have evolved.
COUNTS will increase our fundamental understanding of how phenotypic diversity is generated, informing how phenotypes might evolve when faced with a rapidly changing climate and potentially contributing to practical applications such as organoid design for regenerative medicine.
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 physical sciences optics microscopy
- medical and health sciences clinical medicine embryology
- natural sciences biological sciences genetics genomes
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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)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.1 - European Research Council (ERC)
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(opens in new window) ERC-2024-STG
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OX1 2JD Oxford
United Kingdom
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