
Policy Paper The Soil Association United Kingdom
Summary: The Soil Association welcomes publicly funded research to map the
genetic sequence and structure of plants, offering an opportunity to gain
a better understanding of the molecular biology of crops. We support the
use of this data in natural plant breeding programmes such as marker
assisted breeding (MAB.) By 'natural plant breeding' the Soil Association
refers to methods which do not by-pass the sexual breeding process.
Scientists have developed the means to read the genetic sequencing of
plants. This genetic map can assist plant breeders to more reliably and
rapidly identify desirable traits when selecting plants for sexual
breeding programmes - a process which in the past has involved drawn out
procedures. Utilising this mapping information whilst maintaining the
sexual breeding process enables the more efficient development of new
plant (and animal)varieties, but without the risks associated with genetic
engineering (i.e. the artificial transfer of genetic material between or
within speciesusing recombinant DNA). [note rDNA can be used to transfer
genetic material between the same species].
Marker Assisted breeding - Genomics Marker assisted breeding (sometimes
referred to as 'genomics') is a form of biotechnology which uses genetic
fingerprinting techniques to assists plant breeders in matching molecular
profile to the physical properties of the variety. This allows plant
breeders to significantly accelerate the speed of natural plant breeding
programmes, without exposure to the unpredictable health and environmental
risks associated with genetic engineering techniques.
Local distinctiveness and genetic diversity.The Soil Association would
welcome publicly owned research using MAB provided the technology is not
used to promote a narrowing of genetic diversity in plant varieties (there
is a risk that seed companies may use this technology to further reduce
the genetic diversity of commercially available crop varieties thereby
increasing the plant health risks associated with genetically un-diverse
systems of agriculture - i.e. risk associated with moncultures).
Organic systems traditionally stress the importance of adaptation through
natural evolution along the principle of natural breeds and natural
selection. Any marker assisted breeding programme should therefore focus
on the use of germplasm from locally distinct traditional seed lines from
a particular area or region that are best suited for local weather
patterns, soil type and other important agronomic factors when developing
new varieties. Maintaining genetic diversity within agriculture is of
fundamental importance. It serves as a basic insurance against local crop
disease outbreaks becoming regional or national outbreaks. The less
diversity in the system the wider and faster new bacterial, viral or other
pathogens can spread throughout the national agricultural plant (or
animal) base.The use of locally adapted plants which are more appropriate
to local ecosystems are important in developing such systems of plant
protection based on genetic diversity.
Plant breeding has become such a specialised and centralised industry that
this essential diversity has been eroded in recent years. This represents
a considerable threat not only to the economy of the farming industry, but
also to national food security, human health and the national economy. The
Irish potato famine of 1846 is an extreme example of a past national
crisis which followed low genetic diversity in cropping patterns. Organic
farming reverses this trend of genetic erosion by positively encouraging
genetic diversity.
Patent Protection Abuse: The Soil Association believes that although
marker assisted breeding can play a useful role in the development on new
varieties, it must not become a means to patent specific genes and that
access to genetic information provided by the technique must be made
available free of charge to all scientists requiring it for research
purposes. Experience with the human genome project has already shown that
the biotechnology industry frequently seeks to patent the genes it
discovers through mapping research, particularly where genetic sequences
are believed to be linked to commercially exploitable traits. The Soil
Association believes that this is immoral. It contravenes the most basic
of traditional patenting principles , which allow patents on inventions
made by humans, but not discoveries in nature. If novel traits identified
by genomic discovery are allowed to be patented this potentially sound
technology will be abused, restricting access to scientific knowledge of
naturally occurring biological phenomena by others for the benefit of the
wider community.
Genetic Engineering - The dangers Genetic engineering involves the
artificial insertion of individual genes from one organism (typically, but
not exclusively, from other unrelated species) into the genetic material
of another. This methodology is the cause of much concern. Scientists have
identified particular effects that some specific genes have on the
characteristics of an organism (e.g. the identification of a gene in a
plant which makes it resistant to a particular insect pest). However,
wider effects may occur through different genes interacting with each
other. At present, these interactions are not well understood by
scientists, or even understood at all in many cases. The artificial
introduction of novel genetic material out of context using recombinant
DNA in this way is fraught with difficulties given the depth of such
knowledge deficits.
In addition the very process of genetic engineering increases levels of
risk by by-passing the integrated bio-regulatory systems inherent and
generally conserved in the sexual breeding process.In nature genes are
regulated by neighbouring (and sometimes distant) DNA sequences which, for
example, control when or where in the plant the gene should operate. These
processes have so far only been identified and understood to a limited
degree. As a result current agricultural genetic engineering techniques
are unable to take these fundamentally important relationships into
account when creating new organisms incorporating recombinant DNA. Equally
in the genetic engineering of plants little or no control is exercised
over the locational placement on the genome of inserted genes.Placement is
essentially random and multiple copies may also be inserted
unintentionally.
Because of this lack of knowledge of the natural regulatory functions
within plant genomes, as well as the random positioning of inserted
foreign genes, unpredicted side effects occur routinely with genetic
engineering techniques. Many of these have been recorded even in
commercialised varieties. This approach can lead to dangers such as
allergenicity, the creation of new toxins or poor agronomic performance.
An example of an unpredictable physical side effect was reported in the
new scientist, whereby more lignin in GM soya than non GM soya was
found,causing stunted, weak stems which split open and reduced yields.
By contrast, however, when Marker Assisted Breeding is used to assist
traditional sexually-mediated breeding programmes, natural processes of
gene regulation and placement are not by-passed. This avoids exposure to
the novel health and environmental risks inherent in genetic engineering
plant breeding methods .
Organic farming - It should be noted that the principles of organic farming revolves essentially around animal and plant
husbandry rather than merely the attributes of a specific variety.
"The base line of the investigations [of seed varieties] of the future
must be a fertile soil. The land must be got into good heart to begin
with. A valuable method of testing our practice is to observe the effect
of time on a variety. If it shows a tendency to run out something is
wrong. If it seems to be permanent, our methods are correct.The efficiency
of the agriculture of the future will therefore be measured by the
reduction in the number of plant breeders. A few only will be needed when
soils become fertile and remain so." Sir Albert Howard, An Agricultural
Testament, 1940
Soil Association 40-56 Victoria Street, Bristol BS1 6BY E:
** NOTICE: In accordance with Title 17 U.S.C. Section 107, this material is distributed for research and educational purposes only. **
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