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Evolvability in Artificial Development of Large, Complex Structures and the Principle of Terminal Addition
Alessandro Fontana1, Borys Wróbel2
1Adam Mickiewicz University in Poznań, Institute of Molecular Biology and Biotechnology, National Gerontology Centre, Cyprus.
Artificial Life
|November 1, 2024
Summary
Epigenetic tracking (ET) models complex development. Evolving evaluation stages revealed terminal addition, improving evolvability and reducing computational cost for generating intricate structures.
Area of Science:
- Developmental biology
- Evolutionary computation
- Artificial life
Background:
- Epigenetic tracking (ET) models complex 3D cellular structure development from single cells.
- ET-generated structures exhibit complexity comparable to multicellular organisms.
Purpose of the Study:
- Investigate the evolvability of ET development using a complex "Italian Anubis" target structure.
- Analyze the impact of evolving developmental evaluation stages on genome evolution.
Main Methods:
- Simulated evolution of an "Italian Anubis" structure using Epigenetic Tracking.
- Allowing the fitness evaluation stage during development to evolve.
- Explicitly incorporating the principle of terminal addition into ET.
Main Results:
- Genes triggered at later developmental stages were incorporated later in the genome.
- This suggests the emergence of terminal addition as a developmental property.
- Explicitly adding terminal addition significantly improved evolvability and reduced computational cost.
Conclusions:
- Terminal addition is a key factor in enhancing evolvability in ET systems.
- This principle facilitates the development of complex structures more efficiently.
- ET combined with terminal addition offers a powerful model for studying biological development and evolution.
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