CRISPR gene-edited food in Europe? Questions remain on crop breeding regulations

GG June Cover image

It’s hard enough devising an appropriate approach to regulate genetically modified organisms (GMOs). To complicate things further, scientists keep coming up with new techniques. How can governments regulate these new techniques and do it quickly enough and in a way that assures both consumer safety and fosters the development of new technologies?

On January 18, 2018, European Union (EU) Advocate General Michal Bobek took a first stab at how new mutagenesis techniques might be regulated.  He released an advisory opinion on whether crops and animals developed using new mutagenesis techniques are exempt from the EU’s current regulation of GMOs. The opinion clarifies much, but it leaves many of the difficult questions unanswered.  Disappointingly, it does not decide whether cutting-edge, gene-editing techniques such as CRISPR-Cas9 qualify for the exemption, or if they are regulated as GMOs. Scientists, regulators, and the public will have to hope that the European Court of Justice (ECJ) is more courageous and overcomes the temptation to punt on answering the tough questions that could decide the regulatory fate of gene-edited products.

What is Gene Editing and Why Should We Care?

Gene-editing techniques allow scientists to make precise changes to an organism’s genetic material. Those techniques can be used to turn genes on or off, as well as introduce genes with new, foreign traits by cutting an organism’s DNA at a precise pre-programmed location.  In 2012, gene editing took a huge leap forward with the discovery of CRISPR, a biological technique that is often described as an extremely efficient, precise, and inexpensive gene-editing “machine.” Using CRISPR to edit the DNA in a cell is often described as analogous to programming a computer to find and replace one word in a 400-page book.

CRISPR gene editing (click image to enlarge)

CRISPR has been described by Nature magazine as “revolutionary” and one of the “biggest game changers to hit biology.” It has been used in laboratories to edit the genomes of numerous plants and animals that are important to agriculture.  Examples of gene-edited animals include: pigs that are resistant to particular diseases; pigs that produce leaner bacon; and hornless cattle (which avoids the painful process of manually dehorning them).  Examples of gene-edited plants include: non-browning mushrooms; drought-tolerant corn; and mildew-resistant grapes. CRISPR also has potential applications in human medicine to cure genetic diseases such as sickle cell anemia, and to fight infectious diseases with antibiotics that specifically target disease-causing bacteria. The Wall Street Journal recently reported that Chinese researchers have been using CRISPR to treat cancer and HIV patients.  Whether in agriculture or human medicine, CRISPR is inexpensive, relatively easy to use, and more precise than previous techniques. These factors make CRISPR much more accessible than traditional genetic engineering for research and public/private product development.

While many scientists are going full steam ahead with CRISPR, others are concerned about possible risks.  CRISPR is not perfect, and it can occasionally cause off-target and unintended changes to occur in the genome of the gene-edited organism.  In addition, some scientists are concerned that CRISPR could be used to change the rules of inheritance, resulting in “designer babies” or the extinction of a species (a mosquito, for example). But the big unknown is how government oversight will affect companies’ ability to use CRISPR to develop and market new products.

Background on the Debate over Regulating Gene-edited Crops in Europe

Is a crop with a genome that has been altered using molecular gene-editing techniques such as CRISPR-Cas9 regulated under the European Union’s regulatory framework for GMOs? Many scientists and seed developers, and some countries, have argued that if a molecular gene-editing technique is used to alter a crop’s existing genome but does not introduce DNA from a different species, the resulting product is no different from a crop with a genome altered using other means. Chemical mutagenesis and ionizing radiation, which cause random mutations in an organism’s genome, are currently exempt under the EU’s GMO directive.  Arguably, molecular gene-editing techniques that create similar products (but with greater precision) should also be exempt. For some scientists and consumer and environmental groups, however, molecular gene-editing techniques are “genetic engineering” that could result in harmful products and should, therefore, meet all the substantive obligations under the directive.

The Case before the European Court of Justice

In 2016, nine French non-governmental organizations (NGOs) opposed to GMOs filed a case with the highest court in France about whether mutagenesis techniques are regulated as GMOs. As a result, the French court posed four questions about EU law to the European Court of Justice (ECJ). As part of the ECJ’s procedures, the Advocate General often drafts a legal opinion about the issues in the case, and this document is what was recently released.  The opinion is non-binding and only advisory, but the ECJ often adopts the Advocate General’s legal analysis in its court decisions. The ECJ’s decision itself is expected later this year.

Related article:  Roundup on trial: Second glyphosate-cancer lawsuit heads to federal court

The Advocate General’s Legal Opinion

Some Organisms Altered by Mutagenesis Techniques are not Regulated as GMOs

The Advocate General’s opinion makes three legal conclusions about which organisms qualify for the “mutagenesis techniques” exemption:

  1. The introduction of foreign DNA is not necessary for an organism to be a GMO.  An organism must merely have its genetic material altered in a way that does not occur naturally.
  2. What qualifies for the mutagenesis exemption is not frozen in time to only apply to techniques—such as chemical mutagenesis—that were available when the GMO law was enacted in 2001.  Instead, the exemption should evolve over time and encompass all mutagenesis techniques that meet the statutory language.
  3. Not all organisms with genetic material altered though mutagenesis techniques qualify for the exemption.  Only the subset of organisms in which the mutagenesis technique “does not involve the use of recombinant nucleic acid molecules” qualifies for the exemption.

What will these conclusions mean if they are adopted by the ECJ and applied to the regulation of gene-edited organisms? First, contrary to press reports about the Advocate General’s opinion and the view of many scientists, the Advocate General is asserting that the introduction of foreign DNA is irrelevant to whether an altered organism is a GMO. Secondly, whether the mutagenesis technique involved the use of recombinant nucleic acid molecules is the critical question for determining whether a mutagenesis technique is exempt.  Unfortunately, the Advocate General’s opinion does not apply his legal interpretation to the different molecular gene-editing techniques being used to create new crop and animal varieties.

Gene-edited hornless cows

The directive and the Advocate General’s opinion do not define “recombinant nucleic acid molecules,” nor does the opinion explain what it means for a mutagenetic technique to “involve” those molecules.  Does combining nucleotides to create the components of CRISPR-Cas9 complex result in a “recombinant nucleic acid molecule?” Does “recombining” mean the joining of any two pieces of DNA or RNA from the same species, or do they have to be from different species? Does “involve” mean that a “recombinant nucleic acid molecule” has been used at any step in the mutagenesis process, or only that the molecule is in the final product? The Advocate General’s opinion missed the mark by leaving these questions unanswered. Hopefully, the ECJ will not sidestep these questions in its opinion. If it does, policy will have to be determined by EU regulators, or in future court cases.

EU Member States Can Regulate Mutagenetic Organisms Not Covered by the Directive

The Advocate General’s opinion also finds that EU Member States can establish regulatory oversight for organisms created by mutagenesis techniques even if they are exempt from the EU’s GMO directive. This holding could result in a patchwork of different rules throughout Europe, undermining the EU’s single market.  If exempt products pose potential risks, they should be regulated at the EU level.

The Safety of a Mutagenesis Technique and Resulting Products is Irrelevant to its Regulatory Treatment

The Advocate General’s opinion addresses the assertion that safety should be considered when determining whether new molecular gene-editing techniques should be exempt from regulation. The French NGOs and some governments have argued that only “tried and tested” techniques that were found to be safe in 2001 should be exempt.  Other governments have argued that if a mutagenesis technique is “as safe as” a traditional technique, or if it has fewer risks than conventional mutagenesis, it should be exempt. Both sides’ arguments are rejected by Advocate General Bobek’s opinion, which finds that the exemption of a technique does not depend on safety or risk.  While this may be the correct legal interpretation of the directive, the result is a bad policy in which some products are over-regulated while others are under-regulated.


Overall, the Advocate General’s opinion clarifies the scope of the EU’s GMO directive and how to interpret the exemption for mutagenesis techniques.  However, the key question of how that directive applies to new molecular gene-edited products, if at all, remains unanswered, at least until the ECJ weighs in.

Gregory Jaffe is the Director of the Project on Biotechnology for the Center for Science in the Public Interest. Follow him on Twitter @JaffeGregory 

This article was originally posted at the Center for Science in the Public Interest as “European Union Opinion on Gene Editing: Insightful or Missed Opportunity?” and has been republished here with permission.

Outbreak Daily Digest
Biotech Facts & Fallacies
Talking Biotech
Genetics Unzipped

Video: We can ‘finally’ grow GMOs—Nigerian farmer explains why developing countries need biotech crops

Nigerian farmer Patience Koku discusses the GMO crop trials she is conducting on her farm, and why growers can "rise ...
mag insects image superjumbo v

Disaster interrupted: Which farming system better preserves insect populations: Organic or conventional?

A three-year run of fragmentary Armageddon-like studies had primed the journalism pumps and settled the media framing about the future ...
dead bee desolate city

Are we facing an ‘Insect Apocalypse’ caused by ‘intensive, industrial’ farming and agricultural chemicals? The media say yes; Science says ‘no’

The media call it the “Insect Apocalypse”. In the past three years, the phrase has become an accepted truth of ...
breastfeeding bed x facebook x

Infographic: We know breastfeeding helps children. Now we know it helps mothers too

When a woman becomes pregnant, her risk of type 2 diabetes increases for the rest of her life, perhaps because ...
organic hillside sweet corn x

Organic v conventional using GMOs: Which is the more sustainable farming?

Many consumers spend more for organic food to avoid genetically modified products in part because they believe that “industrial agriculture” ...
benjamin franklin x

Are most GMO safety studies funded by industry?

The assertion that biotech companies do the research and the government just signs off on it is false ...
gmo corn field x

Do GMO Bt (insect-resistant) crops pose a threat to human health or the environment?

Bt is a bacterium found organically in the soil. It is extremely effective in repelling or killing target insects but ...

Environmental Working Group: EWG challenges safety of GMOs, food pesticide residues

Known by some as the "Environmental Worrying Group," EWG lobbies for tighter GMO legislation and famously puts out annual "dirty dozen" list of fruits and ...
m hansen

Michael Hansen: Architect of Consumers Union ongoing anti-GMO campaign

Michael K. Hansen (born 1956) is thought by critics to be the prime mover behind the ongoing campaign against agricultural biotechnology at Consumer Reports. He is an ...
News on human & agricultural genetics and biotechnology delivered to your inbox.
Optional. Mail on special occasions.
Send this to a friend