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An Arabidopsis hAT-like transposase is essential for plant development

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  • Paul Bundock

    (Leiden University
    Keygene NV)

  • Paul Hooykaas

    (Leiden University)

Abstract

Jump to it The genomes of both plants and animals contain a high proportion of transposons, able to ‘jump’ from one position in the genome to another through the actions of a transposase enzyme. This can damage the host DNA, and generally provides no benefit to the host. Why then are so many transposon copies present? The first example in any organism of a transposase-like gene that serves an essential host function may give some clues. Surprisingly the transposase DAYSLEEPER gene, isolated from Arabidopsis thaliana, is essential for normal plant growth. This work shows that transposases can become domesticated by the host as a novel mechanism for gene regulation.

Suggested Citation

  • Paul Bundock & Paul Hooykaas, 2005. "An Arabidopsis hAT-like transposase is essential for plant development," Nature, Nature, vol. 436(7048), pages 282-284, July.
    • Handle: RePEc:nat:nature:v:436:y:2005:i:7048:d:10.1038_nature03667
    DOI: 10.1038/nature03667
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