Despite of the immense potential of gene technologies for tree breeding, release of genetic
modified trees is still very rare. Biosafety concerns have hitherto limited application of gene …

A major concern over the use of transgenic trees is the potential for transgene dispersal
through pollen and seeds. The incorporation of sterility inducing genes into transgenic lines …

In forest tree species, the reproductive phase is reached only after many years or even
decades of juvenile growth. Different early flowering systems based on the genetic transfer …

Key message The early flowering system HSP:: AtFT allowed a fast evaluation of a gene
containment system based on the construct PsEND1:: barnase–barstar for poplar …

Forest trees are fundamental components of our environment, mainly due to their long
lifetime and important role in forest ecology. In the past, some non-native tree species and …

Key message Differentiation level but not transgene copy number influenced activation of a
gene containment system in poplar. Heat treatments promoted CRE gene body methylation …

Since beginning of 1990, several projects on biosafety research were initiated in Germany
with genetically modified plants. Germany was also one of the first countries active on …

Basic techniques in tissue culture, genetic engineering and the molecular biology of non-
woody plants have been applied to forest trees with varying degrees of success …

The demand for energy and forestry products is globally increasing, raising the question if
traditional breeding programs are efficient and fast enough to keep up with these demands …

Advances in technology for in vitro propagation and genetic transformation have accelerated
the development of genetically engineered trees during the past 15 years. At least 33 …