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Related Experiment Videos

Foldback transposable elements in plants

D Rebatchouk1, J O Narita

  • 1Department of Biological Sciences, University of Illinois at Chicago 60607, USA.

Plant Molecular Biology
|July 1, 1997
PubMed
Summary
This summary is machine-generated.

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A new plant transposon family, SoFT (Solanaceae Foldback Transposon), was discovered. These elements resemble animal foldback transposons, suggesting these mobile genetic elements are widespread across eukaryotes.

Area of Science:

  • Genetics
  • Molecular Biology
  • Plant Science

Background:

  • Transposons are mobile genetic elements that can alter genome structure and function.
  • Foldback transposons, characterized by long terminal inverted repeats, are known in animals.
  • The presence and structure of foldback transposons in plants remained largely unexplored.

Purpose of the Study:

  • To identify and characterize novel transposon families in plants.
  • To investigate the structural features of plant transposons and compare them to known animal elements.
  • To assess the evolutionary conservation of foldback transposon structures across eukaryotes.

Main Methods:

  • Bioinformatic analysis of plant genomic sequences.
  • Identification of repetitive elements with terminal inverted repeats.

Related Experiment Videos

  • Comparative sequence analysis of plant and animal transposons.

    • Main Results:

    • Discovery of a novel transposon family in plants, designated SoFT (Solanaceae Foldback Transposon).
    • SoFT elements share structural similarities with animal foldback transposons, featuring a central segment flanked by long terminal inverted repeats.
    • Two SoFT elements exhibited a 'classical' foldback structure with distinct outer (tandem subrepeats) and inner (AT-rich, non-repetitive) domains in their inverted repeats.

    Conclusions:

    • The discovery of SoFT elements expands the known diversity of transposons in plants.
    • The structural parallels between SoFT and animal foldback transposons suggest a conserved mechanism of transposition.
    • Foldback transposons represent a ubiquitous class of mobile genetic elements across eukaryotic kingdoms.