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Phylogeny01:23

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Syntagms in development and evolution

F Huang1

  • 1Department of Molecular and Cell Biology, University of California, Berkeley 94720-3200, USA. zong@uclink4.berkeley.edu

The International Journal of Developmental Biology
|July 8, 1998
PubMed
Summary
This summary is machine-generated.

Developmental processes in Drosophila are composed of discrete genetic operations, termed syntagms. This stepwise organization of gene interactions influences evolutionary trajectories.

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Area of Science:

  • Developmental Biology
  • Genetics
  • Evolutionary Biology

Background:

  • Genetic analysis reveals Drosophila development comprises discrete elementary operations.
  • Development can be conceptualized as a stepwise process driven by interactive gene groups.

Purpose of the Study:

  • To describe developmental syntagms in Drosophila.
  • To explore the evolutionary consequences of discontinuous developmental organization.

Main Methods:

  • Review of genetic analyses of developmental processes.
  • Conceptual framework based on García-Bellido's syntagm hypothesis.

Main Results:

  • Identification and description of key developmental syntagms.
  • Elucidation of how discontinuous developmental programs impact evolution.

Conclusions:

  • Drosophila development is organized into modular genetic units (syntagms).
  • The discontinuous nature of developmental gene interactions has significant evolutionary implications.