Evolution of metal hyperaccumulation required cis-regulatory changes and triplication of HMA4

Marc Hanikenne, Ina N. Talke, Michael J. Haydon, Christa Lanz, Andrea Nolte, Patrick Motte, Juergen Kroymann, Detlef Weigel and Ute Krämer ()
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Marc Hanikenne: Max Planck Institute of Molecular Plant Physiology
Ina N. Talke: Max Planck Institute of Molecular Plant Physiology
Michael J. Haydon: Max Planck Institute of Molecular Plant Physiology
Christa Lanz: Max Planck Institute for Developmental Biology
Andrea Nolte: Max Planck Institute of Molecular Plant Physiology
Patrick Motte: Plant Cell Biology
Juergen Kroymann: Max Planck Institute for Chemical Ecology
Detlef Weigel: Max Planck Institute for Developmental Biology
Ute Krämer: Max Planck Institute of Molecular Plant Physiology

Nature, 2008, vol. 453, issue 7193, 391-395

Abstract: Heavy-metal resistance: Plants grow their metal Strains of the model plant Arabidopsis vary in their ability to thrive in heavy-metal environments, presumably due to adaptations throughout evolution. Hanikenne et al. demonstrate that the strain A. halleri has accumulated multiple copies of the gene HMA4 and changes to the regulatory elements for these genes enable A. halleri to survive in extreme conditions. Their results should be useful in bioremediation for metal-contaminated soils.

Date: 2008
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DOI: 10.1038/nature06877

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