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Hereditary stability and variation in evolution and development.

D S Thaler1

  • 1Sackler Laboratory of Molecular Genetics and Informatics, Rockefeller University, Box 174, 1230 York Ave., New York, NY 10021-6399, USA. thalerd@rockvax.rockefeller.edu

Evolution & Development
|April 28, 2001
PubMed
Summary
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Evolution and development, often seen as distinct, share common mechanisms. Both processes involve genetic changes and natural selection, challenging traditional views and offering new insights into biological lineage. This challenges the dogma of separate evolutionary and developmental pathways.

Area of Science:

  • Evolutionary biology
  • Developmental biology
  • Cancer biology

Background:

  • Evolution and development are traditionally viewed as separate lineage processes.
  • Evolution is often described as random genetic variation and natural selection.
  • Development is frequently characterized as a deterministic, DNA-encoded program.

Purpose of the Study:

  • To challenge the dichotomy between evolutionary and developmental mechanisms.
  • To explore the shared mechanistic pathways in biological lineage.
  • To re-evaluate the roles of deterministic and stochastic processes in biology.

Main Methods:

  • Literature review and conceptual synthesis.
  • Analysis of established biological principles in evolution and development.

Related Experiment Videos

  • Comparative examination of hereditary change and stabilization processes.

    • Main Results:

    • Deterministic mechanisms contribute to genetic variation for natural selection.
    • Stochastic and selective mechanisms are integral to development, immune, and nervous systems.
    • Cancer exhibits characteristics of both evolutionary and developmental lineage pathways.

    Conclusions:

    • Evolutionary and developmental processes are not mutually exclusive.
    • Shared mechanisms, including genetic changes and selection, operate in both domains.
    • Cancer exemplifies a process integrating evolutionary and developmental hereditary changes.