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Index
Genetic Worth and Timber Supply
Molecular Genetics
Deployment issues and genetic diversity
Quantitative Genetics
Biotechnology
Publications
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Forest Genetics
Projects
Biotechnology and Genetically Modified (GM)
Trees (or Trees with Novel Traits) (Alvin
Yanchuk)
As
we are all aware, there has been substantial technical development
over the last decade with respect to cloning forest trees
and changing the genetics of plants with transgene technologies.
Cloning techniques, such as simple grafting, go back far
in our history, but with current tissue culture techniques
in conifers, such as somatic embyrogenesis, genetic transformation
using recombinant DNA technology is possible. Although there
is substantial controversy, the commercial use of GM trees
on crown land is not yet possible, or allowed. Federal regulations
on the release of GM Trees, and the Province of B.C.'s position
on the use of GM trees does not allow deployment. Although
our research program utilizes many components of biotechnology
(i.e., molecular genetics, vegetative propagation and experimentation
with somatic embryogenisis) they only support the traditional
breeding approach of recurrent selection. Moreover, it is
not clear at this time if the economics and social acceptance
of genetically modified trees will ever be such that they
could be fully integrated into the breeding programs in
B.C. It is a large and difficult question being debated
by many countries and agencies; however, the technology
is being developed and is being used in other countries.
For some further information on general issues
and the role of biotechnology, two articles relevant to
the application of biotechnology in B.C. are:
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Forest Geneics Council Extension Note # 2: Biotechnology:
Potential Applications in Tree Improvement, March
2001. This extension note describes types of biotechnology
that are being used or have potential applications
in tree breeding and production of planting stock.
It notes some of the concerns about the use of genetic
engineering in tree improvement, and how B.C. is responding
to these issues.
- A recent report by the FAO, Forestry Department, http://www.fao.org/documents/show_cdr.asp?url_file=/docrep/008/ae574e/ae574e
00.htm entitled, 'Preliminary review of biotechnology in forestry,
with genetic modification" provides a more recent and global
update on the current state of biotechnology.
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