Perspectives
This is a curated collection of scholarly and non-scholarly materials that can be found in the Scholarly Literature and Media Coverage databases that are ‘opinion-heavy.’ This collection is intended to capture the full range of thought and opinion about gene drive technologies.
Bioengineering horizon scan 2020
12449L. Kemp, L. Adam, C. R. Boehm, R. Breitling, R. Casagrande, M. Dando, A. Djikeng, N. G. Evans, R. Hammond, K. Hills, L. A. Holt, T. Kuiken, A. Markotić, P. Millett, J. A. Napier, C. Nelson, S. S. ÓhÉigeartaigh, A. Osbourn, M. J. Palmer, N. J. Patron, E. P, eLife, 9:e54489. 2020-05-29 20:28:54.
Horizon scanning is intended to identify the opportunities and threats associated with technological, regulatory and social change. In 2017 some of the present authors conducted a horizon scan for bioengineering (Wintle et al., 2017). Here we report the results of a new horizon scan that is based on inputs from a larger and more international group of 38 participants. The final list of 20 issues includes topics spanning from the political (the regulation of genomic data, increased philanthropic funding and malicious uses of neurochemicals) to the environmental (crops for changing climates and agricultural gene drives). The early identification of such issues is relevant to researchers, policy-makers and the wider public.
Gene Drives: Pursuing opportunities, minimizing risk
11966K. L. Warmbrod, A. Kobokovich, R. West, G. Ray, M. Trotochaud and M. Montague, Center for Health Security, 2020-05-18 18:14:50.
This study analyzed the current state of gene drive technologies, the ways in which they might be deployed in the field, and the state of regulatory policy governing their development.
Risk assessment challenges of synthetic gene drive organisms
12529E. Sirinathsinghji, TWN Biosafety Briefing, 2020-03-01 15:12:11.
Understanding the Science of Gene Drive and the Potential for an Improved Crop Pest Control System in Nigeria
14882A. Isah and R. S. M. Gidado, OFAB Nigeria, 2020-02-26 15:52:39.
Several studies have shown that the Cas9-mediated gene drive technology is cheaper and will be easily affordable by the efficient Nigerian scientists to explore. The application of the gene drive technologies have many more controls over several other devastating insects in Nigeria and may be very necessary to adopt it to rescue our ailing food crop industry from the attack by destructive insect pest of crops.
Davos 2020 World Economic Forum | When Humankind Overrides Evolution
6813M. Skipper, World Economic Forum, Davos 2020. 2020-01-21 15:32:08.
Advances in synthetic biology and other novel genetic procedures could resurrect extinct species or eliminate dangerous pests. What actions are needed now to ensure the ethical and responsible application of new genetic techniques?
Irreversible ecosystem engineering with Gene Drive Organisms
8178Save Our Seeds, Save Our Seeds, 2020-01-18 19:56:07.
Gene drive technology is a particular application of the new genetic engineering tool CRISPR/Cas9. It is designed to genetically modify, replace or eradicate wild populations or entire species. So far it works in mosquitos, mice, flies, yeast and nematodes. But in principle it could be used to genetically modify any sexually reproducing organism. Gene drive organisms (GDOs) are meant to mate with their wild relatives and spread their engineered genes to ALL of their offspring. This forced inheritance pattern circumvents natures normal rules of inheritance. It triggers a genetic chain reaction in which the genetic engineering tool CRISPR/Cas9 and sometimes an additional new gene are passed on from generation to generation. Genetic changes induced by a gene drive can lead to sterility or the change of sex ratio of their descendants, leading to a crash in their population. First field trials in nature are foreseen for the near future.
Gene drives : equity demands civility
6184N. Kofler, Nature, 565:25. 2020-01-03 19:10:06.
At the 14th Conference of the Parties of the United Nations Convention on Biological Diversity late last year, I witnessed the rapid deterioration of a crucial discussion. It was on the potential of synthetic biology in environmental conservation. What started as heckling turned into a yelling match of misinformation. Such disruptive behaviour robbed the global community of a rare opportunity to debate gene drives in a meaningful way. Sidelined young scientists, country delegates and others watched in disbelief.
These are the 5 most dystopian technologies of 2020 and beyond
6188M. Sullivan, FastCompany, 2019-12-28 19:13:46.
Tech is always both good and bad. But we live in a time when everything gets weaponized—ideas, images, ancient texts, biases, and even people. And technology provides the tools to do it easier, faster, and with less resources.
Exterminator genes: The right to say no to ethics dumping
5654Bassey-Orovwuje, M., J. Thomas and T. Wakeford, Development, 62:121-127. 2019-12-17 18:09:38.
The scientific-industrial complex is promoting a new wave of genetically modified organisms, in particular gene drive organisms, using the same hype with which they tried to persuade society that GMOs would be a magic bullet to solve world hunger. The Gates Foundation claims that GDOs could help wipe out diseases such as malaria. Powerful conservation lobby groups claim GDOs will protect engendered species. Not only are the benefits from GDOs based, like their predecessors, on flawed ecological thinking, but they are backed by the same agri-business interests that have devastated agroecological farming systems. The rights of communities to say ‘no’ to new genetic technologies is being eroded, despite United Nations agreements, such as the Convention on Biological Diversity, which call for the free, prior and informed consent of affected communities to be respected. By exporting their field trials to countries with weak regulatory regimes and lowering of the standards of consent the Gates Foundation’s Target Malaria project has already been guilty of ethics dumping. These developments demonstrate the urgent need to democratize the development of new technologies.
Gene drives in Africa – A Podcast
5592Wakeford, T., etc Group, 2019-12-16 19:57:27.
In Episode #1 ETC's Tom Wakeford speaks with Ugandan lawyer and advocate Barbara Ntambirweki about gene drives, a powerful new genetic technology that can change species in the wild and make species go extinct.
Gene drives in Wisconsin agriculture: What are they, and should you support it?
6026Jones, M. and Mitchell, P. D., Renk Agribusiness Institute, 2019-10-02 20:34:10.
Spotted wing drosophila and citrus psyllid are not serious economic problems for Wisconsin agriculture. However, these and other smaller, geographically limited applications of gene drives are excellent ways to prove the concept and refine the methods. Pending the outcome of these limited-scale applications, we are likely to eventually see implications for row crop agriculture such as the management of serious and widespread pests such like corn rootworm, European corn borer, soybean aphid and Colorado potato beetle. Applications which could provide tremendous benefits to Wisconsin producers.
Malaria eradication within a generation: ambitious, achievable, and necessary
12533R. G. A. Feachem, I. Chen, O. Akbari, A. Bertozzi-Villa, S. Bhatt, F. Binka, M. F. Boni, C. Buckee, J. Dieleman, A. Dondorp, A. Eapen, N. Sekhri Feachem, S. Filler, P. Gething, R. Gosling, A. Haakenstad, K. Harvard, A. Hatefi, D. Jamison, K. E. Jones, C., Lancet, 394:1056-1112. 2019-09-13 15:21:30.
50 years after a noble but flawed attempt to eradicate malaria in the mid-20th century, the global malaria community is once again seriously considering eradication. Momentum towards eradication has been building for decades, and more than half of the world’s countries are now malaria free.
Genetically engineered mosquitoes out of control
4534GM Watch, GM Watch, 2019-09-11 00:00:00.
According to a new scientific publication, genetically engineered mosquitoes produced by the biotech company Oxitec (Intrexon) have escaped human control after trials in Brazil. They are now spreading in the environment. The yellow fever mosquitoes (Aedes aegypti) are genetically engineered to make it impossible for their offspring to survive. After release they were supposed to mate with female mosquitoes of the species which transmit infectious diseases, such as Dengue fever, to diminish the natural populations.
Gene drive organisms: What Africa should know about actors, motives and threats to biodiversity and food systems
5923Sirinathsinghji, E., African Centre for Biodiversity., 2019-05-13 16:51:45.
In this briefing paper, we set out the key issues that our governments should have addressed with African civil society before endorsing positions and setting the benchmark for Africa-wide policy. In this regard, we point out that, while the impetus for the AU position might well have been gene drive technologies proposed by the Gates-funded Target Malaria consortium, as a tool to reduce the transmission of malaria on the continent, the debate about gene drive organisms goes well beyond gene drive mosquitoes. Plans by gene drive developers target pests, pollinators, weeds and the speeding up of plant breeding programmes. The logic of using these technologies in agriculture relies on the continued deception that exceedingly complex problems in the food system in Africa can be resolved simply by new high-tech innovations, while downplaying their potential risks to biodiversity and livelihoods.
Gene drive technology makes mouse offspring inherit specific traits from parents
4531Cooper, KLG, Hannah A., The Conversation, 2019-01-24 00:00:00.
As mouse geneticists, we spend a lot of time waiting for mice to make more mice. Their small size, ease of care and willingness to mate have made mice the “mammal of choice” for scientists for more than a century. Indeed, these wriggly fur balls that strike fear in the hearts of some are owed a debt of gratitude for all they’ve taught researchers about human health and how mammalian bodies are built and function.
Gene editing research highlights challenges in using CRISPR for pest control
4532Dreaver, C, Radio New Zealand, 2019-01-24 00:00:00.
US researchers have had some success in using the gene editing technique CRISPR to test out a gene drive in mice, to modify their genes - highlighting the challenges researchers face if it were to be used in pest eradication.
Gene Drives Work in Mice (if They’re Female)
4538Rennie, JC, Jordana, Quanta Magazine, 2019-01-23 00:00:00.
Conservationists and bioethicists often regard the packages of engineered DNA called “gene drives” with a mixture of wonder, excitement and dread. Gene drives violate the normal rules of inheritance by making sure they get passed down to all of their host organism’s offspring, not just to half of them; they therefore have the unnerving potential to rapidly and irrevocably alter a population. Much of the controversy about gene drives has centered on the practicality (and hubris) of using them to control dangerous insect pests, since insects were about the only animals in which gene drives had been shown to work.
Gene drive mosquitoes and the new era of medical colonialism
4536Mayet, MC, L. I.; Sirinathsingji, E, GM Watch, 2019-01-22 00:00:00.
The highly contentious issue of gene drive technologies – a novel extreme form of genetic engineering designed to alter or even eradicate entire populations and species – was at the heart of the international negotiations at the biennial UN Biodiversity Conference held in Sharm el-Sheikh, Egypt, in November 2018.
Gene driving the farm: who decides, who owns, and who benefits?
3907Montenegro de Wit, M, Agroecology and Sustainable Food Systems, 43:1054-1074. 2019-01-05 00:00:00.
This commentary essay explores the social and ecological implications of gene-driving agriculture.
Sustainability as a framework for considering gene drive mice for invasive rodent eradication
3886Barnhill-Dilling, SKS, M.; Blondel, D. V.; Godwin, J., Sustainability, 11:1334. 2019-01-04 00:00:00.
Gene drives represent a dynamic and controversial set of technologies with applications that range from mosquito control to the conservation of biological diversity on islands. Currently, gene drives are being developed in mice that may one day serve as an important tool for reducing invasive rodent pests, a key threat to island biodiversity and economies. Gene drives in mice are still in development in laboratories, and wild release of modified mice is likely a distant reality. However, technological changes outpace the existing capacity of regulatory frameworks, and thus require integrated governance frameworks. We suggest sustainability-which gives equal consideration to the environment, economy, and society-as one framework for addressing complexity and uncertainty in the governance of emerging gene drive technologies for invasive species management. We explore the impacts of rodent gene drives on island environments, including potential conservation and restoration of island biodiversity. We outline considerations for rodent gene drives on island economies, including impacts on agricultural and tourism losses, and reductions in biosecurity costs. Finally, we address the social dimension as an essential space for deliberation that will be integral to evaluating the potential deployment of gene drive rodents on islands.
Africans paid 69 cents an hour to be bitten in GMO mosquito trial
GM Watch, GMWatch, 2018-12-18 00:00:00.Under the headline, Malaria trial pays Africans to be bitten, The Times of London reports that human “guinea pigs” in the West African state of Burkina Faso are being paid to expose themselves to mosquitoes that could potentially carry malaria or other diseases. ; ; Although the Bill & Melinda Gates Foundation has invested $70 million in the project, The Times reports that about 25 African “volunteers” in the village of Bana are being paid just 69 cents (£0.55) an hour to expose their legs for six hours a night to all mosquitoes in their local environment, as part of a GMO mosquito trial.
Africa kicks against proposed gene drive moratorium at UN Biodiversity Conference
4560Gakpo, JO, Cornell Alliance for Science, 2018-11-20 00:00:00.
Africa has kicked against a proposed moratorium on the environmental release of organisms containing gene drives now under debate at the United Nation’s biodiversity conference in Egypt.
Burkina Faso’s mosquito controversy: Consent, awareness and risk assessment in Target Malaria’s gene drive project
4559Fuhr, L, Klima der Gerechtigkeit, 2018-11-20 00:00:00.
The 14th Conference of the Parties (COP 14) to the Convention on Biological Diversity is taking place in Sharm El-Sheikh, Egypt, from the 17th to the 29th of November, 2018. Amongst other things, delegates are discussing a moratorium on the release of gene drives, a powerful genetic extinction technology.
Genetic extinction technology challenged at UN Convention on biodiversity
4582reporter, A, Ekklesia, 2018-11-20 00:00:00.
From November 17-29 2018, international conservation and environmental leaders are meeting to call on governments to protect biodiversity and Indigenous Peoples’ and local communities’ rights from controversial new biotechnologies. Friends of the Earth says gene drives have the capacity to wipe out or alter species forever, and to significantly disrupt or modify the ecosystems on which humanity strongly depends for its survival. Gene drives pose serious and potentially irreversible threats to biodiversity and ecosystems, human health, as well as national sovereignty, peace and food sovereignty.
Viewpoint: UN should reject a proposed ban on gene drives
4544Bailey, R, Genetic Literacy Project, 2018-11-20 00:00:00.
A draft resolution would revise the U.N. Convention on Biological Diversity to call on governments to “refrain from” releasing organisms containing engineered gene drives, according to the MIT Technology Review. A gene drive is a technology that can rapidly propagate a particular set of genes throughout a population, including genes that cause sterility in a species.
Zambian citizens call on leaders to raise concerns on GMOs at upcoming meeting in Egypt
4546Biodiversity, ZAfAa, Lusakatimes, 2018-11-17 00:00:00.
Zambia supports the global call for a moratorium on Gene Drive releases, including applied research such as open field trials
Let’s say we can force the mosquito into extinction — should we do it?
4579Porterfield, A, Genetic Literacy Project, 2018-11-15 00:00:00.
Not many people like mosquitoes. So why not eliminate them?; Newer techniques like CRISPR/Cas9 gene editing may make this possible. A new study by researchers at Imperial College London showed how CRISPR/Cas9 can generate a mutant gene that renders female mosquitos infertile, while males can spread the same mutation to offspring. Using a genetic tweak called gene drive, the scientists found they could extend the mutation in subsequent offspring at high enough rates to offset the effects of normal versions of the gene. This essentially wiped out the test population of Anopheles gambiae, a species of mosquito responsible for spreading malaria.
Proposed U.N. test ban on gene drives is idiotic
4543Bailey, R, Reason, 2018-11-15 00:00:00.
A draft resolution would revise the U.N. Convention on Biological Diversity to call on governments to "refrain from" releasing organisms containing engineered gene drives, according to the MIT Technology Review. A gene drive is a technology that can rapidly propagate a particular set of genes throughout a population, including genes that cause sterility in a species.
Call for a global moratorium on gene drive releases
Network, TW, Biosafety Information Centre, 2018-11-13 00:00:00.Gene drives are a genetic engineering tool that aim to force artificial genetic changes through entire populations of animals, insects and plants. Starting on the 17th of November, Parties to the United Nations Convention on Biological Diversity will meet to discuss measures to control this technology, including a possible moratorium on environmental releases. (Item 1)
United Nations considers a test ban on evolution-warping gene drives
Regalado, A, MIT Technology Review, 2018-11-13 00:00:00.Debate over a new idea for stopping malaria is pitting some environmental groups against Bill Gates.
Do not betray Africa on synbio and gene drives
4557etc group, etc group, 2018-11-11 00:00:00.
As representatives of a broad range of African civil society organisations (CSOs), we do not feel represented by the delegations of Nigeria and South Africa, speaking on behalf of African Group, in their attempt to speak on behalf of the people of Africa on the issue of synthetic biology (synbio) and gene drive organisms (GDOs).
Release of risky GM mosquitoes in Burkina faso highly unethical.
GM Watch, GM Watch, 2018-11-09 00:00:00.Risky genetically modified (GM) “male-sterile” mosquitoes are due to be released in the near future in Burkina Faso by the Target Malaria research consortium. However, Target Malaria acknowledges that there are no benefits to the proposed GM mosquito release.; ; According to Mariam Mayet, executive director of the African Centre for Biodiversity, “There is absolutely no justification for releasing these GM mosquitoes. It is highly unethical and totally unacceptable to conduct experiments which carry risks, yet do not bring any benefit for malaria control in Burkina Faso."
African Union’s endorsement of unproven gene drive mosquitoes “misguided”
GM Watch, GMWatch, 2018-11-05 00:00:00.The African Union (AU) is paving the way for the entry of the latest and most controversial form of genetic engineering – gene drive technologies. In July 2018 the AU released a report endorsing the development of the technology as well as "enabling legislation" for their deployment across its member states. The African Centre for Biodiversity (ACB), has released a critique of the AU report, which the ACB says is hopelessly premature and merely repeats unsubstantiated claims made by gene drive developers.
A Call to Protect Food Systems from Genetic Extinction Technology
12040Global Food and Agriculture Movement, etc Group, 2018-10-16 20:31:12.
Gene drives threaten natural systems. If released experimentally into the environment they may spread engineered genes uncontrollably through wild and domesticated species. This could alter ecological systems and food webs, harm biodiversity and eradicate beneficial organisms such as pollinators. Gene drives could disrupt lands, waters, food and fiber economies and harm Indigenous and peasant agroecological practices and cultures.
Just Say No to Agricultural Gene Drives
4722Bassey-Orovwuje, M., Project Syndicate, 2018-10-16 00:00:00.
By forcing laboratory-made genes on an entire population or species, cutting-edge gene-drive technologies have the power to transform entire ecosystems in one fell swoop. But where leading industrial agriculture firms see dollar signs, farmers in the regions where gene drives could be unleashed see a mortal threat to their livelihoods.
Gene drive organisms: Warning of risks due to uncontrolled releases
Then, C, Testbiotech, 2018-10-12 00:00:00.The German Ministry for the Environment has in response to an open letter sent by several civil society organisations issued a statement very critical of genetically engineered organisms carrying a so-called gene drive. The ministry announced that it will take action on an international level to make sure that the associated risks are fully investigated.
Forcing the Farm
4558etc group, etc group, 2018-10-10 00:00:00.
This report is being issued as an alert to governments, civil society organisations and grassroots movements. It points to how gene drives, while promoted as a tool for medicine and conservation, will find their real use in food and farming by agribusiness. It calls for a pause in applied research in gene drives and a halt on releases to the environment until a thorough and public process of dialogue has taken place and rules are established that ensure clear consent and defence of food sovereignty
Considerations for the governance of gene drive organisms
4727Rudenko, L.P., Megan J.; Oye, Kenneth, Pathogens and Global Health, 2018-07-05 00:00:00.
Governance is a broader and more flexible concept than statute-driven regulations as it incorporates components outside the latter?s remit. Considerations of governance are critical in the development of emerging biotechnologies such as gene drive organisms. These have been proposed or are being developed to address public and environmental health issues not addressed easily by conventional means. Here, we consider how the concept of governance differs from statute-driven regulation with reference to the role each may play in the development of gene drive organisms. First, we discuss existing statute-based regulatory systems. Second, we consider whether novel risks or different concerns derive from gene drive organisms, concentrating on characteristics that contribute to public health or environmental risk and uncertainties that may affect risk perceptions. Third, we consider public engagement, outlining how existing statute-driven regulatory systems and other governance mechanisms may provide opportunities for constructive interactions. Finally, we provide some observations that may help address science- and values-based concerns in a governance space larger than that of statute-driven regulatory systems.
Editing nature: Local roots of global governance
4726Kofler, N.C., James P.; Kuzma, Jennifer; Marris, Emma; Esvelt, Kevin; Nelson, Michael Paul; Newhouse, Andrew; Rothschild, Lynn J.; Vigliotti, Vivian S.; Semenov, Misha; Jacobsen, Rowan; Dahlman, James E.; Prince, Shannon; Caccone, Adalgisa; Brown, Timothy, Science, 2018-07-05 00:00:00.
Transgenic Mosquitoes – Fact or Fiction?
5907Wilke, A. B. B., J. C. Beier and G. Benelli, Trends in Parasitology, 34:456-465. 2018-03-08 16:14:34.
echnologies for controlling mosquito vectors based on genetic manipulation and the release of genetically modified mosquitoes (GMMs) are gaining ground. However, concrete epidemiological evidence of their effectiveness, sustainability, and impact on the environment and nontarget species is lacking; no reliable ecological evidence on the potential interactions among GMMs, target populations, and other mosquito species populations exists; and no GMM technology has yet been approved by the WHO Vector Control Advisory Group. Our opinion is that, although GMMs may be considered a promising control tool, more studies are needed to assess their true effectiveness, risks, and benefits. Overall, several lines of evidence must be provided before GMM-based control strategies can be used under the integrated vector management framework.
Conservation demands safe gene drive
13629K. M. Esvelt and N. J. Gemmell, PLOS Biology, 15:e2003850. 2017-11-16 14:03:39.
Here, we explore the risk of accidental spread posed by self-propagating gene drive technologies, highlight new gene drive designs that might achieve better outcomes, and explain why we need open and international discussions concerning a technology that could have global ramifications.
Using CRISPR-based gene drive for agriculture pest control
13621V. Courtier-Orgogozo, B. Morizot and C. Boëte, EMBO Reports, 18:1481. 2017-09-01 13:15:07.
The authors respond to comments to their publication 10.15252/embr.201744205
Agricultural pest control with CRISPR-based gene drive: time for public debate
13636V. Courtier-Orgogozo, B. Morizot and C. Boëte, EMBO Reports, 18:878-880. 2017-06-01 14:19:16.
Gene drive technology to control disease vectors or pests has great potential for addressing humanitarian and public health problems. Its application for pest control in agriculture, however, raises important environmental, social and ethical issues.
National Academies hit the brakes on gene drive-modified organisms
5657Abbasi, J., JAMA-Journal of the American Medical Association, 316:482-483. 2016-12-17 18:11:25.
Despite their potential for fighting Zika, malaria, and other public health scourges, organisms that have been engineered to quickly spread genetic modifications through a population—and possibly an entire species—are not ready for release into the wild, a committee of interdisciplinary experts concluded in a recent report by the National Academies of Sciences, Engineering, and Medicine (http://bit.ly/1UHuqQk). So-called gene drive–modified organisms “require more research in laboratories and highly controlled field trials,” the committee said in a statement (http://bit.ly/1tkWCTO). Gene drives are systems of “biased inheritance” that enhance a genetic element’s ability to pass from parent organism to offspring through sexual reproduction. These selfish genetic elements could be genes or their fragments, all or parts of chromosomes, or noncoding DNA, the report stated.
Gene Drives on the Horizon: Advancing Science, Navigating Uncertainty, and Aligning Research with Public Values
6356U. S. National Academies of Sciences, Engineering, and Medicine, The National Academies Press, 2016-07-08 20:32:51.
Scientists have studied gene drives for more than 50 years. The development of a powerful genome editing tool in 2012, CRISPR/Cas9,1 led to recent breakthroughs in gene drive research that built on that half century’s worth of knowledge, and stimulated new discussion of the potential applications and implications of gene drive technologies. Just prior to the beginning of this study and since the committee was first convened, scientists published four proofs of concept— one in yeast, one in fruit flies, and two in different species of mosquitoes—that demonstrate the successful development of gene drives in the laboratory, at least in these organisms. Proposed applications for gene-drive modified organisms for basic research, conservation, agriculture, public health and other purposes will likely continue to expand as gene editing tools become more refined. Gene-drive modified organisms are on the horizon. The fast moving nature of this field is both encouraging and concerning. While gene-drive modified organisms hold promise for addressing difficult to solve, persistent challenges, such as the eradication of vector-borne diseases and the conservation of threatened and endangered species, these proposed applications are based on limited proof-of-concept studies. The presumed efficiency of gene-drive modified organisms may lead to calls for their release in perceived crisis situations, before there is adequate knowledge of their ecological effects, and before mitigation plans for unintended harmful consequences are in place. Responding to this fast moving field, the National Institutes of Health (NIH) and the Foundation for the National Institutes of Health (FNIH)2 asked the National Academies of Sciences, Engineering, and Medicine to convene a committee with a broad range of expertise to summarize the scientific discoveries related to gene drives and considerations for their responsible use. Proof-of-concept in a few laboratory studies is not sufficient in and of itself to support a decision to release gene-drive modified organisms into the environment. Laboratory and field research is needed to refine CRISPR/Cas9-based gene drives and other gene drive mechanisms, and to understand how gene drives might work under different environmental conditions and in a wide variety of organisms. The considerable gaps in knowledge about potential off-target (within the organism) and non-target (in other species or the environment) effects necessitate a collaborative, multidisciplinary approach to research, ecological risk assessment, development of public policy, and decision making for each proposed application of a gene drive technology. General principles to guide responsible practices for gene drives from the laboratory setting through to field release and monitoring are embedded as recommendations throughout the report.
Opinion: Is CRISPR-based gene drive a biocontrol silver bullet or global conservation threat?
4131Webber, BLR, S.; Edwards, O. R., Proceedings of the National Academy of Sciences of the United States of America, 112:10565-10567. 2015-01-09 00:00:00.
Scientists have recognized the potential for applying gene drive technologies to the control of invasive species for several years, yet debate about the application of gene drive has been primarily restricted to mosquitoes. Recent developments in clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9 technology have restarted discussions of using gene drive for invasive species control.
Safeguarding gene drive experiments in the laboratory
4107Akbari, OSB, H. J.; Bier, E.; Bullock, S. L.; Burt, A.; Church, G. M.; Cook, K. R.; Duchek, P.; Edwards, O. R.; Esvelt, K. M.; Gantz, V. M.; Golic, K. G.; Gratz, S. J.; Harrison, M. M.; Hayes, K. R.; James, A. A.; Kaufman, T. C.; Knoblich, J.; Malik, H. S.; Matthews, K. A.; O'Connor-Giles, K. M.; Parks, A. L.; Perrimon, N.; Port, F.; Russell, S.; Ueda, R.; Wildonger, J., Science, 349:927-929. 2015-01-05 00:00:00.
Gene drive systems promote the spread of genetic elements through populations by assuring they are inherited more often than Mendelian segregation would predict (see the figure). Natural examples of gene drive from Drosophila include sex-ratio meiotic drive, segregation distortion, and replicative transposition. Synthetic drive systems based on selective embryonic lethality or homing endonucleases have been described previously in Drosophila melanogaster (1–3), but they are difficult to build or are limited to transgenic populations. In contrast, RNAguided gene drives based on the CRISPR/Cas9 nuclease can, in principle, be constructed by any laboratory capable of making transgenic organisms (4). They have tremendous potential to address global problems in health, agriculture, and conservation, but their capacity to alter wild populations outside the laboratory demands caution (4–7). Just as researchers working with self-propagating pathogens must ensure that these agents do not escape to the outside world, scientists working in the laboratory with gene drive constructs are responsible for keeping them confined (4, 6, 7).
Concerning RNA-guided gene drives for the alteration of wild populations
4139Esvelt, KMS, Andrea L.; Catteruccia, Flaminia; Church, George M., eLife, 3:e03401. 2014-01-17 00:00:00.
Gene drives may be capable of addressing ecological problems by altering entire; populations of wild organisms, but their use has remained largely theoretical due to technical; constraints. Here we consider the potential for RNA-guided gene drives based on the CRISPR; nuclease Cas9 to serve as a general method for spreading altered traits through wild populations; over many generations. We detail likely capabilities, discuss limitations, and provide novel; precautionary strategies to control the spread of gene drives and reverse genomic changes. The; ability to edit populations of sexual species would offer substantial benefits to humanity and the; environment. For example, RNA-guided gene drives could potentially prevent the spread of; disease, support agriculture by reversing pesticide and herbicide resistance in insects and weeds,; and control damaging invasive species. However, the possibility of unwanted ecological effects and; near-certainty of spread across political borders demand careful assessment of each potential; application. We call for thoughtful, inclusive, and well-informed public discussions to explore the; responsible use of this currently theoretical technology.
The Sterile Insect Technique: can established technology beat malaria?
25843M. E. H. Helinski, B. El-Sayed and B. G. J. Knols, Entomologische Berichten, 66:13-20. 2006-06-06 14:48:37.
The Sterile Insect Technique (SIT) is the mass production, sterilisation and subsequent release of sterile insects into a target population in an area-wide integrated approach. The released sterile males mate with wild females; they thus no longer produce offspring and therefore the size of the target population is reduced. Over the years, SIT has proven to be a safe, effective and environmentally sound method to suppress, eliminate or contain pest populations. The International Atomic Energy Agency (IAEA) has a long history of supporting SIT programmes against key insect pests, including fruit flies, tsetse flies and moths. Recently, an integrated five year study to assess the feasibility of SIT to control African malaria mosquitoes has been initiated. In this article, we discuss the components and research requirements for such a feasibility study including sexing, mass production, sterilisation and release methodologies.
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