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A semiotic framework for evolutionary and developmental biology.

Eugenio Andrade1

  • 1Department of Biology, Universidad Nacional de Colombia, A.A. 330413, Bogotá, DC, Colombia. leandradep@unal.edu.co

Bio Systems
|December 1, 2006
PubMed
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This study proposes a semiotic framework for evolutionary synthesis, integrating Lamarckian and Darwinian concepts. It models evolving developing agents (EDA) to explain how organisms adapt to environmental uncertainty through development and evolution.

Area of Science:

  • Evolutionary biology
  • Developmental systems theory
  • Biosemiotics

Background:

  • Current evolutionary synthesis lacks a comprehensive framework for integrating developmental and Lamarckian/Darwinian perspectives.
  • Peirce's semiotic categories offer a potential foundation for a more inclusive evolutionary theory.
  • Developmental systems theory requires formalization to explain organismal adaptation and evolutionary change.

Purpose of the Study:

  • To construct a semiotic framework for an expanded evolutionary synthesis.
  • To formalize developmental systems theory using the concept of evolving developing agents (EDA).
  • To model the interplay between development, evolution, and organismal adaptation to environmental uncertainty.

Main Methods:

  • Utilizing Peirce's universal categories and space/time/function relations.

Related Experiment Videos

  • Integrating Lamarckian (internal/external) and Darwinian (individual/population) perspectives.
  • Formalizing developmental systems theory with evolving developing agents (EDA) as an internalist model.

    • Main Results:

    • A framework is proposed where development and evolution are open-ended information-increasing processes.
    • Evolving developing agents (EDA) achieve a functional compromise between phenotypic uniqueness and environmental anticipation.
    • Mutual information changes between phenotype/environment drive changes between genotype/phenotype and genotype/environment across ontogeny and phylogeny.

    Conclusions:

    • Development and evolution are driven by an organism's need to cope with environmental uncertainty.
    • Phenotypic uniqueness and environmental anticipation are key factors selected for during development and evolution.
    • Developmental terminal additions and minimized developmental steps are favored by natural selection.