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Tree genetic engineering and applications to sustainable forestry and biomass production.

Harfouche A, Meilan R, Altman A

Department of Forest Environment and Resources, University of Tuscia, Via S. Camillo de Lellis, Viterbo 01100, Italy.

Forest trees provide raw materials, help to maintain biodiversity and mitigate the effects of climate change. Certain tree species can also be used as feedstocks for bioenergy production. Achieving these goals may require the introduction or modified expression of genes to enhance biomass production in a sustainable and environmentally responsible manner. Tree genetic engineering has advanced to the point at which genes for desirable traits can now be introduced and expressed efficiently; examples include biotic and abiotic stress tolerance, improved wood properties, root formation and phytoremediation. Transgene confinement, including flowering control, may be needed to avoid ecological risks and satisfy regulatory requirements. This and stable expression are key issues that need to be resolved before transgenic trees can be used commercially.

Published 27 December 2010 in Trends Biotechnol, 29(1): 9-17.
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