An Arabidopsis hAT-like transposase is essential for plant development

Paul Bundock and Paul Hooykaas ()
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Paul Bundock: Leiden University
Paul Hooykaas: Leiden University

Nature, 2005, vol. 436, issue 7048, 282-284

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.

Date: 2005
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DOI: 10.1038/nature03667

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