Tag Archives: gene editing

GM and GE

Last one for a while on GM.

One of the things I get asked about from time to time is what is commonly called “Genetically Modified” crops and animals – of which the uniformed press and individuals see (commonly said) as having “Frankenstein” risks.  It is, in their defence, true to say that all technology is two-edged.  Mistakes happen and when GM is done right, but in the wrong hands, it is potentially dangerous and immoral.  That, strange as it may seem, is why we should get involved. Genetic Engineering (GE) is dramatically more precise and accurate than “Dolly the Sheep” which was certainly a breakthrough.  With GE, we can now have “Gene Editing” and “Gene Snipping” which are dramatically more precise and safer. This means we can speed up the evolution of safer crops which are disease resistant and we will need less pesticides and animals can be healthier with less suffering and needing less veterinary treatments. We also need international agreements and supervision of it development and use, especially when applied to human development – which is already happening.

Bill Butterworth, Land Research Ltd.  1 March 19

Website Rainbow 001

Every now and then there is a flash of vision, a promise of pushing the frontier back. Gene Editing is one of those rare, very precise, good revolutions.

Farming has always had a constant battle between crop and animal production, and predators of one sort or another.  In developed countries, the predators are mainly small and in very large numbers – mainly insects or fungi in crops and bacteria in animals.  We have accepted that pestilence is part of living with nature.  The answer has been the development of pesticides – insecticides, fungicides, herbicides, bactericides. (Those farming near urban concentrations would also like to see legal vandalicides.) This reliance on chemical control has its problems of  side effects, residues (some of which may be long term), pollution  and regulation.

There is now the break-through development of “Gene Editing” which will allow very precise “snipping” of genes out of a chromosome. This will allow the cutting out of a bad gene or the snipping of a gene resistant to a pest in one species of a wild plant (say wheat) and insertion into a developed crop plant of the same family (crop wheat in this case).  This is a very good reason for preserving all sorts of apparently/maybe useless species because a “bank” of alternatives may allow us to pick and choose resistance.  (Full marks to the vision of The Royal Botanic Gardens, Kew for building a global seed bank.)  Having got a single plant resistant to a particular pest, then the problem is to drive that resistance into the entire population of commercial crop – that is where “Gene Driving” comes in.

Where is this going?  Well, it will take a long time but potentially these techniques will allow us to reduce a wide range of plant and animal diseases and conditions, while still maintaining chemical pesticides and anti-biotics.  What we are doing is adding to the armoury in this constant battle for survival in the face of a growing population.