Showing posts with label Wheat. Show all posts
Showing posts with label Wheat. Show all posts

Friday, May 25, 2012

Attention-grabbing rampage adds nothing to GM debate

Grain Aphid (Image: Rothamsted Research)
Regular readers of this blog will know that I've advocated a sensible and rational debate about GM crops and I've added my voice to the growing calls for trials to establish the scientific evidence for and against such crops.

In a recent article for the Guardian's Notes and Theories Blog, I've also called for a move away from division based on ideology in agriculture and food production towards a compromise solution where the best features of all agriculture systems are used safely and effectively.

That is why it's particularly disturbing that this weekend could see one of the most difficult, disturbing and avoidable stand-offs in the whole GM debate so far.

Located north of London, Rothamsted Research station is the longest running agricultural research station in the world. A trial of GM wheat plants has been ongoing since the 22nd of March. The plants are designed to repel aphid pests because they emit an aphid repellent.

The gene inserted into the wheat is synthetic in nature - it doesn't come from any other species. It allows the plant to produce (E)-β-farnesene, an alarm pheremone that the aphid itself produces to warn off other aphids when they come under attack. Simply put, the plants are designed to repel the aphids by scaring them off.

However, the trial, designed to see whether the new plants would grow as expected and repel aphids, is under threat from an anti-GM grouping called Take The Flour Back.

This group has called for a 'decontamination' of the site next Sunday, May 27th. According to their website, "Take the Flour Back will be a nice day out in the country, with picnics, music from Seize the Day and a decontamination. It’s for anyone who feels able to publicly help remove this threat and those who want to show their support for them".

In what amounts to a threat of physical force, the group has called on the Rothamsted researchers to remove the plants or face the consequences of a 'decontamination'. Protesters are encouraged by the protesters website: "If you are able to bring your own biohazard protection and dustmask, please do".

Rothamstead researchers took the unprecedented step of writing an open letter (pdf) to the protesters and producing a youtube video (below), appealing that their research would not be destroyed.


Apart from a letter from the protest group they seem to have been reluctant to engage in any sort of meaningful dialogue - even withdrawing from a public debate which they themselves had called for.
You can read a timeline of events and the correspondence itself here.

A petition, organised by Sense about Science has garnered over 5,500 signature in the last few weeks in support of the Rothamsted researchers.

At this late stage, it seems unlikely that the protesters will not attempt to destroy legitimate and much-needed scientific research on Sunday. They will also put at risk the nearby Broadbalk experimental site - itself the longest running field experiment in the world.

Rothamsted scientists will be at work on Sunday, a short distance from the trial site, to answer questions from the public. Nearby, years of scientific research could be reduced to nothing by extremists who refuse to accept the rule of law or the argument that a debate based on evidence is needed rather than a hot-headed, attention-grabbing rampage. As one commentator put it, destruction adds nothing to the sum of human knowledge.

Even at the eleventh hour, this group needs to call a halt to this 'protest' and engage in a proper debate. If the evidence against GM is as convincing as they think it is, then they have nothing to fear.

Wednesday, September 1, 2010

Wheat and Apple genomes provide hope for food security

The recent sequencing of two major crop genomes is good news for plant protection and for food security.

With the full genetic sequence now available for wheat and apple, scientists will have more information at their fingertips for the improvement of these crops to fight plant diseases and to ensure that growing human populations have adequate food resources in the future.

On the 26th of August last, a team of researchers in the UK released the 'first draft' of the wheat genome. While further work needs to be done to produce a fully annotated genome, the work is a major step forward for plant science.

The team of researchers responsible for the the wheat genome publication were funded by the Biotechnology and Biological Sciences Research Council (BBSRC) and come from the University of Liverpool, the University of Bristol and the John Innes Centre.

The first draft (basically the raw data from the sequencing work) will need to be further annotated and assembled into the individual chromosomes and is based on a reference wheat variety called Chinese Spring. Information on this reference variety will be key to unlocking the genetic information behind other commercial varieties of wheat.

Prof. Mike Bevan from the John Innes Centre says that "The sequence coverage will provide an important foundation for international efforts aimed at generating a complete genome sequence of wheat in the next few years".

The information should lead to improvements in current wheat varieties to ensure that high yields can be maintained in the face of changing environmental conditions and an increased threat from a variety of plant pathogens.

'By understanding the genetic differences between varieties with different traits we can start to develop new types of wheat' - Prof. Anthony HallProf. Anthony Hall of the University of Liverpool hopes that the new information will allow scientists to probe differences between wheat varieties with different characteristics: "By understanding the genetic differences between varieties with different traits we can start to develop new types of wheat better able to cope with drought, salinity or able to deliver higher yields. This will help to protect our food security".

Meanwhile, just this week, an international team of scientists announced that they had published a draft sequence of the domestic apple genome. The genome was published in the current issue of Nature Genetics.

Apple is the main fruit crop of the world's temperate regions and is a member of the plant family Rosaceae which includes many other important species including cherry, pear, peach, apricot, strawberry, and rose.

Much like with the wheat genome, this new information will allow scientists to identify genes which provide desirable characteristics to the crop such as higher yields and disease or drought resistance.

The work by scientists from Italy, France, New Zealand, Belgium and the US was based on the well-known golden delicious apple.

'the scientists were also able to delve into the apples mysterious past'As well as looking to the future of apple production, the scientists were also able to delve into the apples mysterious past. For years they have argued about where the domestic apple came from and now they know. The data published this week shows that the ancestor of the modern apple in Malus sieversii, a plant native to the mountains of southern Kazakhstan.

Prof. Doug Kell, Chief Executive of the BBSRC, who funded the wheat project, points out that "The best way to support our food security is by using modern research strategies to understand how we can deliver sustainable increases in crop yields, especially in the face of climate change. Genome sequencing of this type is an absolutely crucial strategy.

"Knowledge of these genome sequences will now allow plant breeders to identify the best genetic sequences to use as markers in accelerated breeding programmes" said Prof. Kell.

Both the apple and wheat genome work have been made possible by huge advances in sequencing technology. As Prof. Hall of University of Liverpool notes: "Sequencing the human genome took 15 years to complete, but with huge advances in DNA technology, the wheat genome took only a year. The information we have collected will be invaluable in tackling the problem of global food shortage".

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