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Related Experiment Videos

Transposable elements as a molecular evolutionary force.

N V Fedoroff1

  • 1Biotechnology Institute, Pennsylvania State University, University Park 16802, USA.

Annals of the New York Academy of Sciences
|July 23, 1999
PubMed
Summary
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Complex genomes utilize epigenetic mechanisms for high redundancy. Transposable elements modularize these genomes, creating a dynamic, complex genetic system nearing chaos.

Area of Science:

  • Genomics
  • Molecular Biology
  • Epigenetics

Background:

  • Complex genomes exhibit high levels of genetic redundancy.
  • The functional significance of this redundancy and the mechanisms driving genome complexity are not fully understood.

Purpose of the Study:

  • To explore the paradoxes inherent in complex and redundant genomes.
  • To elucidate the roles of epigenetic mechanisms and transposable elements in genome complexity.

Main Methods:

  • Theoretical analysis of genomic structures.
  • Review of existing literature on genome organization and evolution.

Main Results:

  • Complex genomes are characterized by epigenetic mechanisms enabling extensive tandem and dispersed redundancy.
Keywords:
NASA Discipline Plant BiologyNon-NASA Center

Related Experiment Videos

  • Transposable elements contribute to genome modularity.
  • Recombination and transposition act as destabilizing forces, fostering a dynamic system of increasing complexity.

    • Conclusions:

    • Epigenetic regulation is key to managing high redundancy in complex genomes.
    • Transposable elements play a crucial role in genome architecture and evolution.
    • The balance between stabilizing and destabilizing forces results in genomes that are highly complex and dynamic.