Gene Drive in the News
A curated collection of articles from the popular press
Village hears from experts as genetic-mosquito release experiment nears.
16678J. McCarthy, KEYSWEEKLY, 2021-03-26 14:56:47.
On March 18, Islamorada Village Council heard from several independent scientists who discussed information and issues behind the genetically modified mosquitoes for population and disease suppression. The scientists collectively said they’re neither for nor against the release. A representative from the Florida Keys Mosquito Control District and one from Oxitec responded following the presentation. Fred Gould, professor of North Carolina State’s Department of Entomology and Plant Pathology, briefly explained the strain of mosquitoes (OX5034) set for release. He said he was involved with another strain of genetically modified mosquitoes in development in 2010 when a field case study was conducted in Mexico. “In the laboratory, it turned out the male mosquitoes flew fine and mated well. But in the real environment, they weren’t as strong as the wild type mosquitoes and they basically had 3% of the matings. Instead of having half the matings, they had very few,” he said. Gould went on to say that this is also shown in work by Oxitec in Brazil, where it turns out that the genetic mosquitoes “are not very fit.” “It would take 30 of them, at least, to be equal to an individual wild type in terms of how many matings you have,” he said. “When you’re thinking about that, you have to recognize you have to release a lot of mosquitoes in order to have any activity. I just want to bring that home to you that it goes up and down as to what that percent fitness is, and we don’t know what that’ll look like in Florida. “Will it work? I want to say it might work just fine,” he continued. “There’s a chance that they’ll be doing these releases and it won’t be a simple thing.”
Mosquito anxiety prompts query from congressman
16592T. Java, Keynews.com, 2021-03-10 20:09:26.
Anxiety among some residents over the pending release of hundreds of millions of genetically modified mosquitoes next month in undisclosed locations throughout the Florida Keys has prompted Congressman Carlos Gimenez to seek answers from the U.S. Environmental Protection Agency. The Florida Keys Mosquito Control District and Oxitec, a British-based biotech company, plan to release genetically modified Aedes aegypti mosquitoes in selected neighborhoods between mile markers 10 and 93 as a way to control the wild population of the disease-carrying pest. This is the first experiment of its kind in the U.S.
New Pesticides Will Modify Insect Genes: What Could Go Wrong?
16587Food Tank, EcoWatch, 2021-03-09 19:44:05.
Farmers across the U.S. could soon fill their pesticide spray tanks with a substance known as interfering RNA (RNAi). (RNA is a molecule similar to DNA.) Insects that are exposed to it — either by eating crops sprayed with the substance or by landing on a crop and absorbing it through their bodies — would be genetically modified right there in the field. The pesticide would trigger a process inside the insects' cells to switch off or "silence" genes that are essential for survival — like those needed to make new, healthy cells — thus killing them.
Gene Drives Built to Follow More Stringent Rules of the Road
16590Anonymous, Genetic Engineering & Biotechnology News, 2021-03-08 19:57:32.
Gene drives, or systems that accelerate the spread of desirable genetic traits into a population, may be built to achieve specific levels of spread when released into the wild. By exerting control over the degree of spread, those who unleash gene drives may realize the benefits promised by gene drives—the suppression of disease-carrying or crop-destroying insects—while minimizing the risks that unintended genetic changes could occur that would lead to undesirable ecological outcomes. A gene drive engineered to allow for a high degree of control was recently introduced by scientists based at the University of California, San Diego (UCSD). The new gene drive is a “split drive” system. Details appeared in an article titled, “Inherently confinable split-drive systems in Drosophila.” The article demonstrates that split-drive systems may allow various genetic parameters and strategies to be used to either limit or extend drive potential.
Gene-Editing Approach To Control the Invasive Gray Squirrel
16572M. Campbell, Technology Networks, 2021-03-08 14:33:09.
Biodiversity refers to the extent of the variety of life that is found on planet Earth – and it is currently under threat. Changes in biodiversity have been flagged as "surpassing safe limits" for several years, and world leaders and scientists across the globe are consequently exploring different ways to address the crisis. Invasive species, defined by National Geographic as "an organism that is not indigenous, or native, to a particular area", threaten planet Earth's biodiversity to an even greater extent than climate change. The Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) Global Assessment Report found that the number of invasive species per country have risen by ~70% since 1970 across 21 countries that were included in the report. An example of an invasive species is the gray squirrel Sciurus carolinensis found in the UK, which outcompetes the native red squirrel for resources and habitats and carries diseases that are not pathogenic to themselves but can kill red squirrels.
New gene-drive technologies can help control crop pests
16569Anonymous, AZO Life Sciences, 2021-03-08 14:21:28.
The supposed gene drives, which exploit CRISPR technology to affect genetic inheritance, show the potential to quickly spread particular genetic traits across the populations of a specified species. For instance, gene-drive technologies used on insects are being developed to stop the spread of devastating diseases, like dengue and malaria, by inhibiting mosquito hosts from becoming infected. Gene-drives are being designed in agricultural fields to help regulate or remove economically damaging crop pests. But together with the potential to modify populations, there have been concerns about the long-term impacts of these transformative novel technologies in the wild. Both scientists and ethicists have queried about how the so-called gene drives, once turned loose in a regional population, can be controlled if required. Scientists from the University of California San Diego (UC San Diego), Tata Institute for Genetics and Society (TIGS) at UC San Diego, and their collaborators at UC Berkeley have now designed a new technique that gives more control over the release of gene drives. Information about the new “split drive” was published in the Nature Communications and eLife journals on March 5th, 2021.
New ‘Split-drive’ System Puts Scientists in the (Gene) Driver Seat
16555M. Aguilera, UC San Diego News Center, 2021-03-05 19:42:37.
Gene-drive technologies applied in insects, for example, are being designed to halt the spread of devastating diseases such as malaria and dengue by preventing mosquito hosts from becoming infected. In agricultural fields, gene-drives are being developed to help control or eliminate economically damaging crop pests. But along with the capacity to alter populations, concerns have been raised regarding the long-term effects of these transformative new technologies in the wild. Researchers and ethicists have voiced questions about how gene drives, once turned loose in a regional population, could be held in check if necessary. Now, researchers at the University of California San Diego, Tata Institute for Genetics and Society (TIGS) at UC San Diego and their colleagues at UC Berkeley have developed a new method that provides more control over gene drive releases. Details of the new “split drive” are published March 5 in the journals Nature Communications and eLife.
In Uganda, genetically modified mosquitoes bring hope and fear
16550Anonymous, africanews, 2021-03-05 19:32:29.
Scientists here are investigating whether populations of the malaria-carrying insects can be reduced by genetic modification. They're looking at the viability of releasing large numbers of genetically modified mosquitos into the wild to influence future generations. The study is being led by scientists here at the institute in Kampala with researchers from the Target Malaria group. Dr. Jonathan Kayondo is the principal investigator managing the project. He says the disease can be deadly for children, especially those under five-years-old. "The aim here is to develop a new vector control tool for the suppression of malaria transmission," says Dr. Jonathan Kayondo.
Ecology: Gene drives may help control invasive grey squirrel in the UK
16557A. Korn, EurekaAlert, 2021-03-04 19:50:50.
Gene drives introduce genes into a population that have been changed to induce infertility in females, allowing for the control of population size. However, they face technical challenges, such as controlling the spread of altered genes as gene drive individuals mate with wild individuals, and the development of genetic resistance, which may render the gene drive ineffective. To address these challenges, Nicky Faber and colleagues used computer modelling to investigate the effectiveness of a combination of three gene drive technologies using the grey squirrel as a case study.
Genetically modified mosquitoes for better health
16527D. Devis, COSMOS, 2021-03-04 18:24:41.
One method of preventing these mosquito-born diseases is to use insecticides to kill the mozzies and remove them, but sometimes this only works as a short term solution, or has unintended devasting effects on the ecosystem. Another method for decreasing the number of disease-carrying mozzies is to introduce disease resistant, genetically modified mozzies. These transgenic mozzies could be part of a gene drive system where they have a newly introduced disease-resistant gene, linked up with CRISPR mechanisms that help the gene dominate in the population by continuing to copy itself through the genome. All of this requires very thorough risk assessment.
Genetically modified squirrels could curb growing population of greys
16542S. Knapton, Telegraph, 2021-03-04 16:06:59.
Mutant grey squirrels, genetically modified to spread infertility genes, could be released into the wild to tackle the burgeoning population,
Expert reaction to a paper suggesting that gene drives could be used to help control grey squirrel numbers in the UK
16540Anonymous, Science Media Centre, 2021-03-04 15:59:10.
This study assesses the prospects for using a gene drive to control invasive grey squirrels in the UK. This is a modelling study exploring the potential for such an approach – no such gene drives currently exist and developing them for grey squirrels would be quite a long-term project. Invasive species are a major problem for biodiversity and conservation; in many cases there are no adequate methods for control. Genetic methods may provide new options, potentially both more effective and with fewer off-target effects. Most work on gene drives has focused on mosquitoes; this study is unusual in focusing on a vertebrate (grey squirrel), though there has also been interest in targeting invasive populations of mice and rats on islands.
CRISPR gene drives may come to a squirrel near you.
16536Anonymous, NewsBeezer, 2021-03-04 15:48:43.
Today’s gene drive technologies could be blended to provide control of the invasive gray squirrel population in the UK – with minimal risk to other populations, according to a new modeling published in the journal Scientific reports. Gene driving introduces altered genes into a population that can cause infertility in women. This allows scientists to control the size of the population. However, this tactic faces technical difficulties such as controlling the spread of altered genes while certain animals that are part of the gene drive population mate with uncontrolled populations ̵
Tensions rise as GM mosquito release nears in Florida Keys
16520T. O'Hara, Keynews.com, 2021-03-03 20:29:44.
Tensions seem to be rising as a planned release of genetically modified mosquitoes nears. The British-based biotech company Oxitec plans to release genetically modified Aedes aegypti mosquitoes in the Florida Keys sometime after April, but has yet to disclose exact locations in the Keys or a date.
Florida Keys moves forward with genetically modified mosquitoes
16524H. Vela, local10.com, 2021-03-03 18:08:13.
The feared GMO mosquitoes are not going away. Opponents of the technology fear the date of the release in the Florida Keys is getting closer, and they are not ready for the possible repercussions of the experiment. The fight over whether or not to release genetically modified mosquitoes in Monroe County has been going on for almost a decade. Barry Wray said the mosquito control team’s contractor wants to deliver the first batch in April. Wray, the executive director of the Florida Keys Environmental Coalition, said he doesn’t believe there is enough evidence to prove that the technology is safe. He said there is a need for independent scientific investigation. “You don’t really know what the long-term outcomes could be or how to quantify those risks, and if you can’t do that scientifically, then you don’t know how to responsibly mitigate it or detect if something is going awry,” Wray said.
How Brussels can help or hinder the fight against malaria
16511F. Okumu, EURACTIV, 2021-03-01 21:46:44.
In the wake of the pandemic, the world has much for which to thank Europe. Not only did European science lead the field in developing the first approved vaccine against COVID-19, but the EU’s long history of rigorous regulatory approval has also allowed for public confidence in its safety and efficacy. For years, the EU has provided the global gold standard for protecting human health and safety while fostering scientific innovation to improve lives and wellbeing. Heading into a crucial decade for world preservation, the EU has another chance to unleash the power of science in the search for solutions to existential challenges both at home and in neighbouring regions.
When and where will millions of mosquitoes be released? Here are details for Florida Keys
16485D. Goodhue, Miami Herald, 2021-02-25 21:09:17.
The Florida Keys Mosquito Control District announced this week a wide and vague planned range of deployment for the lab-designed mosquitoes — neighborhoods from mile marker 10 to 93. The trial is being conducted by British biotech company Oxitec. It’s a method approved by the U.S. Environmental Protection Agency, the state of Florida, and the mosquito control district’s five-member board, to try to eradicate or significantly reduce the local population of Aedes aegypti mosquitoes.
Company uses engineered mosquitoes to prevent diseases
16514N. Herzog and D. Niesel, The Daily News, 2021-02-24 21:47:32.
It’s amazing how many serious infectious diseases are transmitted by insects like ticks, fleas and mosquitoes. These are called vector-borne diseases, which are responsible for significant human suffering and economic disruption. Mosquitoes are responsible for the spread of many viral diseases including Zika, malaria, West Nile virus, Eastern Equine Encephalitis virus and many others. For the majority of these diseases, we don’t have effective therapeutics or vaccines to treat those that get sick. One approach to control these diseases is to eliminate or reduce the arthropod or insect vector populations using broad spectrum pesticides. These pesticides can cause health problems in humans, and the vectors can become resistant to these chemicals. A new strategy has emerged that involves genetically modifying mosquitoes to disrupt their ability to reproduce. This limits the mosquito population, reducing the possibility of disease spread.
Mosquito trial will begin in April, but Keys locations won’t be disclosed
16483S. Matthis, KEYSWEEKLY, 2021-02-23 20:54:42.
FKMCD spokesman Chad Huff wrote in an email, “The physical location of each box is still being finalized. Since most will be situated on private property at owner request, FKMCD-Oxitec will NOT be providing specific addresses due to privacy concerns and protection of project integrity.” Phil Goodman, chairman of the FKMCD said the decision to keep addresses confidential was an operations decision, not a decision by the elected board. “Right now, we don’t have any specific sites that are 100 percent selected,” said Andrea Leal, executive director of the FKMCD. “We are just narrowing down areas with potential.”
Locals protest over genetically modified mosquito plan in Florida Keys
16479D. Goodhue, Miami Herald, 2021-02-23 14:11:23.
Sometime this year, somewhere in the Florida Keys, a British biotech company is expected to release millions of genetically modified male mosquitoes in an effort to breed out of existence an invasive species of bug responsible for the transmittal of deadly diseases like dengue fever, chikungunya and Zika. But, the pilot project remains controversial, and a large segment of people who live in the island chain are trying to stop it. About two dozen people gathered Sunday morning outside the Murray Nelson Government and Cultural Arts Center in Key Largo to protest the planned release of the lab-designed bugs.
Contact Us
Alex Sullivan
Foundation for the
National Institutes of Health
geneconvenevi@fnih.org