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Multi-level selectional stalemate in a simple artificial chemistry

McMullin, Barry and Kelly, Ciarán and O'Brien, Darragh (2007) Multi-level selectional stalemate in a simple artificial chemistry. In: ECAL 2007 - 9th European Conference on Artificial Life, 10-14 September, 2007, Lisbon, Portugal. ISBN 978-3-540-74912-7

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We describe a simple artificial chemistry which abstracts a small number of key features from the origin of life "replicator world" hypotheses. We report how this can already give rise to moderately complex and counter-intuitive evolutionary phenomena, including macro- evolutionary deterioration in replication fidelity (which corresponds to intrinsic replicator fitness in this model). We briefly describe the extension of this model to incorporate a higher, protocell, level of selection. We show that the interaction between the two levels of selection then serves to control parasitic exploitation at the molecular level, while still significantly constraining accessible evolutionary trajectories at the protocell level. We conclude with a brief discussion of the implications for further work.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Additional Information:The original publication is available at
Subjects:Biological Sciences > Bioinformatics
Computer Science > Computational complexity
Biological Sciences > Molecular biology
Engineering > Artificial life
Computer Science > Computer simulation
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Research Initiatives and Centres > Research Institute for Networks and Communications Engineering (RINCE)
Published in:Advances in Artificial Life: Proceedings of the 9th European Conference, ECAL 2007. Lecture Notes in Computer Science 4648. Springer Berlin / Heidelberg. ISBN 978-3-540-74912-7
Publisher:Springer Berlin / Heidelberg
Official URL:
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:EU FP6 Integrated Project PACE (contract number 002035)
ID Code:15022
Deposited On:24 Nov 2009 11:54 by Barry McMullin. Last Modified 24 Nov 2009 11:54

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