Gene Drive in the News
A curated collection of articles from the popular press
Why Florida is releasing genetically modified mosquitoes
16999M. Murphy, The Telegraph, 2021-05-09 15:19:45.
The thousands of lab-grown mosquitoes hatching in humid gardens across Florida’s tropical Key West next week will be blissfully ignorant of the controversy they have caused. Billboards have already begun appearing near busy motorways in protest of their arrival, with one splashed with the words “risky, unnecessary, unwanted” aside a giant picture of the blood-thirsty insect. “The word ‘genetically modified’ scares people,” says Douglas Mader, a local vet and newspaper columnist living in the Lower Keys. “They think oh my god, they’re releasing genetically modified organisms (GMOs) and they are going to bite me and I’m going to turn into a zombie”. The creatures are the creation of Oxitec, a Bill Gates-backed biotechnology company based in Abingdon, Oxfordshire. Grey Frandsen, its chief executive, and around 20 scientists at Oxitec’s labs, have made it their mission to stop the spread of diseases such as dengue, Zika and malaria by controlling mosquitoes’ reproduction.
Genetically Modified Mosquitoes Have Come to the U.S. Will They Work?
16996A. de la Garza, TIME, 2021-05-09 15:13:05.
“Our Mosquito Project Takes Flight,” reads a baby-blue billboard off US-1 in the Florida Keys, alongside an image of an insect tracing a path in the shape of a heart. Sponsored by the local mosquito control board and U.K.-based biotech firm Oxitec, the ad promotes a contentious plan to release millions of genetically modified Aedes aegypti mosquitoes here to test a new method of bioengineered pest control. It’s the first-ever such experiment in the United States, and one that has turned this chain of sun-soaked island communities into a battleground over scientific truth, government authority, and humanity’s right to modify nature. Even this bit of roadside signage is contested. Four months ago, the billboard carried a different ad, paid for by the Coalition Against GMO Mosquitoes, an organization with the mission of stopping releases of the genetically modified insects in the U.S., “WARNING!!!,” it read then, “GENETICALLY MODIFIED MOSQUITOES TO BE RELEASED IN THE KEYS!!” That release began in late April, when, after a decade of planning, regulatory review and debate, Oxitec workers and local mosquito control personnel added water to a dozen plastic boxes containing the company’s “Friendly™” mosquito eggs in six locations around the Keys, triggering their hatching process. Oxitec’s Aedes aegypti mosquitoes—which the U.S. Environmental Protection Agency (EPA) approved for use last year—are genetically modified to include a “self-limiting” gene that produces a fatal protein. The mosquitoes are raised in a laboratory in the presence of tetracycline, an antibiotic that prevents the added gene from activating. The mosquitoes’ eggs are then left to hatch in the wild, without the antibiotic. The gene kills immature egg-laying females—the only ones that bite—but the males reach maturity, mate with wild females, and pass on their faulty gene. Then their female progeny die, causing the bloodsuckers’ population to crash.
Bill Gates finances the creation of transgenic mosquitoes
16992Explica.co, explica, 2021-05-07 15:03:11.
Male mosquitoes (they do not bite. They feed on nectar, not blood) from Oxitec will emerge from release boxes placed in six locations in the Florida Keys to mate with local female mosquitoes (they do bite. They do feed on blood). The female offspring from these encounters cannot survive, and the Aedes aegypti population will be controlled in this way.. The Aedes aegypti mosquito makes up about four percent of the mosquito population in the Keys. The project has the approval of the Environmental Protection Agency (EPA) and the Florida Department of Agriculture and Consumer Services (FDACS) and the collaboration of the Florida Keys Mosquito Control District (FKMCD). In 2021, the United States expects the release of 750 million transgenic mosquitoes. “An important part of the FKMCD’s mission is to protect the residents of the Florida Keys from the disease-transmitting mosquito, Aedes aegypti. As we are seeing the development of resistance to some of our current control methods, we need new tools to fight this mosquito. And given the unique ecosystem we live in, those tools must be safe, environmentally friendly and specific. That’s why we collaborate with Oxitec on this project. With the full approval of the US EPA and from the Florida Department of Agriculture and Consumer Services, and with the support of the US Centers for Disease Control and an independent advisory board, we are pleased to announce that this project will be underway soon, ”says Andrea Leal, executive director of the FKMCD.
Genetically Modified Mosquitoes Released In US For First Time To Combat Disease
16985J. Van Zijl, IFL Science, 2021-05-06 16:11:16.
A landmark project, spearheaded by the biotechnology company, Oxitec, has released genetically modified mosquitos in the Florida Keys. This marks the first time that genetically modified mosquitos have been released into the wild in the US. The reason: to combat the Aedes aegypti mosquito species responsible for spreading mosquito-borne diseases such as dengue and Zika in the region. Aedes aegypti only accounts for about 4 percent of the total mosquito population in Florida keys – however, it is responsible for almost all mosquito-borne diseases to humans. Current methods to control the species, such as spraying or fogging chemical insecticides, have failed due to the species becoming resistant. So an alternative solution was needed.
Cloning wildlife and editing their genes to protect them and us.
16982H. Thomasy, NEO-LIFE, 2021-05-06 16:06:20.
In December 10, 2020, Elizabeth Ann made history just by being born. She isn’t a British royal, an American married to a British royal, a movie star’s daughter, or even human for that matter. Elizabeth Ann is a ferret—but perhaps the most famous ferret of all time. More specifically, she is the clone of a black-footed ferret named Willa who has been dead for more than 30 years. Elizabeth Ann’s momentous birth marks the first successful cloning of an endangered species native to North America (endangered species like the gaur, or Indian bison, and the mouflon, a wild sheep originally found in Corsica and Sardinia, have been cloned previously). If she can breed successfully, Elizabeth Ann will add valuable genetic diversity to the very small estimated population of around 600 remaining black-footed ferrets, which are all descended from just seven animals. But low genetic diversity isn’t the only thing standing in the way of these ferrets making a comeback. The other major threat is disease. Diseases are a huge problem for many endangered species, but, as the previous year has emphasized all too well, diseases that circulate in animals can also have disastrous consequences if they jump to humans. Genetic engineering of animals in the wild might offer us a way to protect not only our furry friends and feathered compadres, but ourselves as well. Although still in the early stages of research, scientists around the world are working on numerous projects to engineer animals to be resistant to diseases that can impact humans as well, including plague, Lyme disease, dengue fever, and Zika.
Genetically Modified Mosquitoes Released In Florida ‘Jurassic Park Experiment’
16978D. Richardson, UNILAD, 2021-05-06 15:58:18.
Mosquitos are not only annoying but they can carry disease in their bites. In response to this, a company called Oxitec has genetically modified male mosquitos to pass on a killswitch to females. It is hoped that these genetically modified pests will help stop the transmission of deadly diseases, including yellow fever, dengue and Zika virus. The Florida Keys project, which was greenlit by the US Environment Protection Agency in May 2020, has approved the release of 750 million modified mosquitos. However, at the moment only 144,000 will be released during a three-month trial period. Nonetheless, some people in the trial areas are concerned.
Gravitas: Genetically modified mosquitoes arrive in Florida
16962P. Sharma, WION, 2021-05-06 15:03:25.
Genetically engineered mosquitoes have arrived in U.S. 20 million 'modified mosquitoes' will be released in Florida to help prevent Dengue. But, Florida residents fear a 'mosquito apocalypse'
Reengineered mosquitoes released in Florida pilot program
17021S. W. Tan, The Washington Times, 2021-05-06 13:12:32.
Genetically engineered mosquitoes have been released in the U.S. for the first time in the Florida Keys, with hopes of quelling wild, disease-carrying mosquito populations in the region. British-based biotech firm Oxitec genetically engineered Aedes aegypti non-biting male mosquitoes to carry a lethal gene that gets passed onto their offspring when they mate with wild biting female mosquitoes. The offspring are unable to survive, hence controlling the population of disease-carrying species, according to the Florida Keys Mosquito Control District (FKMCD), one of the entities that approved the firm’s project. Release boxes containing the genetically engineered male mosquitoes were placed in six locations last week — two on Cudjoe Key, one on Ramrod Key and three on Vaca Key — with thousands starting to emerge this month. Around 12,000 mosquitoes are expected to emerge each week for about 12 weeks.
First genetically modified mosquitoes released in US
16972N. Lanese, LiveScience, 2021-05-05 15:42:05.
The biotech firm Oxitec has released its genetically modified mosquitoes in the Florida Keys, with the goal of suppressing wild, disease-carrying mosquito populations in the region. This is the first time genetically modified mosquitoes have been released in the U.S. Oxitec previously released its modified Aedes aegypti mosquitoes in Brazil, the Cayman Islands, Panama and Malaysia, and the company reported that local A. aegypti populations fell by at least 90% in those locations, Live Science previously reported. A. aegypti can carry diseases such as Zika, dengue, chikungunya and yellow fever, and releasing modified mosquitoes offers a way to control the population without using pesticides. Oxitec's modified mosquitoes, all male, have been engineered to carry a lethal gene; when the modified pests mate with wild female mosquitoes, the lethal gene gets passed on to their offspring. Though the gene does not affect the males' survival, it prevents female offspring from building an essential protein and thus causes them to die before reaching maturity. Only female mosquitoes bite people (male mosquitoes exclusively drink nectar), so the modified mosquitoes and their surviving male offspring can't pass diseases to humans.
Selfish gene leaves bacteria behind
16967A. York, Nature Reviews Microbiology, 2021-05-05 15:16:52.
Mitochondrial genome evolution is characterized by functional streamlining and gene loss, and gain-of-function gene transfers into the mitochondrial genome are considered rare events. Milner, et al. identified a functional restriction modification (R-M) system in the mitochondrial genome of a marine protist that originated in bacteria. The type II R-M system was found in the mitochondrial genome of a marine heterotrophic katablepharid protist, and phylogenetic analyses suggest that the selfish genetic element consisting of an HpaII-like endonuclease and a cognate cytosine methyltransferase originated in bacteria within or related to Flavobacteriaceae. The authors showed that the R-M system is functional in both bacteria and yeast, and that a toxin–antitoxin relationship exists between the two proteins. The authors posit that the toxin–antitoxin function of the R-M system may have been co-opted to control biased or uniparental inheritance of mitochondria.
Bill Gates-backed startup releases millions of genetically modified mosquitoes
16952ENTREPRENEUR STAFF, Entrepreneur, 2021-05-04 20:35:48.
The British company Oxitec released a cloud of hundreds of millions of genetically modified mosquitoes to study how to control their reproduction and thus stop the spread of dengue, Zika, malaria, etc. As reported by Axios , the company, which is funded by the Bill and Melinda Gates Foundation , released the mosquitoes a week ago from the Florida Keys. In a statement, Oxitec explained that this experiment seeks to study ways to stop the reproduction of Aedes aegypti , the main transmitters of potentially fatal diseases. Why are Oxitec mosquitoes different? According to the company , the males in their insect cloud have a modified gene, called OX5034, that restricts the survival of the females they mate with. Thus, mosquitoes will not grow large enough to bite humans (only females consume blood; males feed on nectar). Oxitec noted that this species only represents 4% of the mosquito population in Florida, but it is the most disease-transmitting species. The startup has already released millions of modified insects around the world, including in Brazil and the Cayman Islands.
First US Field Test of GM Mosquitoes Begins in Florida
16950C. Wilcox, The Scientist, 2021-05-04 20:30:49.
he first US field test of genetically modified mosquitoes for population control has begun in Florida. Approximately 144,000 mosquitoes engineered by the UK-based biotech firm Oxitec are to be expected to be set free over the next three months, the first of up to 750 million approved for release over the next two years by the US Environmental Protection Agency. The trial aims to test whether the mosquitoes are effective at reducing populations of invasive Aedes aegypti, a species that can transmit dangerous diseases to people. The Florida Keys Mosquito Control District, which has partnered with Oxitec, has said this species makes up only 4 percent of the mosquito community in the Keys but is responsible for nearly all disease transmission and has become increasingly resistant to available pesticides, Nature reports. According to Oxitec, the modified mosquitoes are all male and carry a gene that makes female mosquitoes dependent on an antibiotic not available in the animals’ environment, thereby killing all of the male’s female offspring. Adult mosquitoes only live for a few weeks, and just the females bite, so the firm expects its modified males can spread the female-killing insert through the population and drastically reduce the number of potential disease vectors in the region. If successful, the mosquitoes could be used in place of pesticides in control efforts. A small but vocal group of Florida residents that has opposed the “mutant mosquitoes” from the get-go are continuing to seek legal action to stop it, CNN reports. Key Largo resident Mara Daly tells CNN she hopes “civil unrest happens,” and suggests residents could have their communities sprayed with pesticides in an effort to “opt out” of the trial.
The first transgenic mosquitoes were releaseed in the United States.
16947D. Davis, Prudent Press Agency, 2021-05-04 20:19:07.
After a decade of fighting for regulatory approval and public acceptance, the biotech company has released GMO mosquitoes outdoors in the United States for the first time. The experiment, which began this week in the Florida Keys, despite objections from some local critics, is testing a method for suppressing populations of wild Aedes aegypti mosquitoes, which can transmit diseases such as Zika, dengue fever, chikungunya and yellow fever mosquitoes. Oxitec, the UK-based company Abingdon that developed mosquitoes, has previously tested the insects in the field in Brazil, Panama, the Cayman Islands and Malaysia. But so far, due to a tortuous series of regulatory decisions and Florida residents’ disapproval (see “Long Road”), no GM mosquitoes have been tested in the United States, although the country had previously allowed evidence of a GM diamond. Moth (Plutella xylostella) in New York and pink worm (Pectinophora gossypiella) in Arizona, both developed by Oxitec. “When something new and revolutionary comes along, people’s immediate reaction is to say, ‘Wait,’” says Anthony James, a molecular biologist specializing in mosquito bioengineers at the University of California, Irvine. [Oxitec] Was able to conduct a trial on the ground in the United States a big problem. “
The Bill Gates Corporation, Backed by Bill Gates, Releases Thousands of Genetically Modified Mosquitoes
16975T. Meeks, Aviation Analysis, 2021-05-04 15:50:15.
British company Oxitec has launched transgenic mosquitoes in the Florida Keys, in the United States, to study how to control their reproduction and thus limit the spread of chronic diseases transmitted by insects such as dengue fever and the Zika virus. The company, funded by the Bill & Melinda Gates Foundation, announced the placement of its confined release funds, non-release funds, and quality control funds this week in six locations: two in Cudjoe Key, one in Ramrod Key, and three in Vaca Key. Why is the Oxitec mosquito different? According to the company, the males in its insect cloud carry a modified gene called OX5034, which restricts the survival of the females they mate with. As of early next month, fewer than 12,000 mosquitoes are expected to appear per week for about 12 weeks. Untreated comparison sites will be controlled with mosquito traps at Key Colony Beach, Little Torch Key, and Summerland Key. “We started looking at this a decade ago because we were in the middle of an outbreak of dengue fever in the Florida Keys,” Andrea Lyell, executive director of the Florida Keys area for mosquito control, said during a videoconference. “So we are very excited to further this partnership, and work with both Oxitec and members of the community.” Last year the Keys authorities approved the pilot project with mosquitoes Aedes aegyptiShe is not a Florida native. This insect transmits many diseases to humans, especially in the Keys island chain, where dozens of dengue cases were recorded last year.
Next gen insect control
16960E. Unglesbee, Progressive Farmer, 2021-05-04 14:58:12.
Dubbed "self-limiting" insects by their makers, a UK-based biotechnology company called Oxitec, these insects are genetically modified (GM) with an inserted gene that permits only male offspring to survive. Once released into a pest community, the GM insects gradually lower the population, accomplishing a new type of pest control. Then, rather politely, they die off themselves. "After we stop releasing the self-limiting males, the gene declines in a population over a short period of time and within a few generations, disappears," Neil Morrison, head of agriculture programs for Oxitec, told DTN. "It's a gene that prevents survival of half its carriers -- the females -- so it's essentially programmed to decline and disappear quite rapidly." Sound too sci-fi to be real? It's actually happening right now, in the Florida Keys. After gaining EPA and state regulatory approval for the project last year, Oxitec is working with the Florida Keys Mosquito Control District to deploy the country's first largescale release of Oxitec's self-limiting Aedes aegypti mosquitoes.
Genetically modified mosquitos: Biohacking for disease prevention.
16941D. Maloney, HACKADAY, 2021-05-03 15:02:07.
Mosquito control is basically a numbers game, stacked in their favor. Since each female lays 100 to 200 eggs in a clutch, in wet climates, mosquitos are simply too prolific to get ahead of using standard means. Coupled with collateral damage to the environment — draining wetlands carries potentially huge impacts on a wide range of species, as does the indiscriminate use of pesticides — the search for new control methods with less harmful ecological side-effects has led to research into genetic methods of reducing mosquito populations. The idea of genetically engineering insects is nothing new. The fruit fly Drosophila melanogaster has had its genome extensively modified for over 100 years, first using standard mating and crossing techniques and later using transgenic methods to insert, delete, and edit genes. The result has been a wealth of knowledge about how the genetics of higher organisms work, as well as models for human diseases ranging from diabetes to Parkinson’s. But in general, transgenic fruit flies are simply model organisms destined to live and die in the lab. The concept of building a genetically modified insect for release into the wild is fairly new. Oxitec, the company behind the planned releases of transgenic mosquitos in Florida, has been working on the genetic control of a range of pest insect species since it was founded in 2002. They are currently on their second generation of genetically modified Aedes aegypti mosquitos, which is the insect that will soon be tested in Florida. The mosquito, dubbed OX5034, has been genetically engineered to be self-limiting. Both male and female OX5034 mosquitos carry a synthetic gene that is lethal only to females. The plan is to release OX5034 male mosquitos into a wild population where they’ll breed with unmodified females. These females will take a blood meal and lay eggs that carry the synthetic gene. Only the male eggs in the clutch will develop into adulthood; the females will all die during the larval and pupal stage, which will eventually reduce the number of blood meals taken and the potential for disease spread.
First genetically modified mosquitoes released in the United States
16939E. Waltz, Nature, 2021-05-03 14:56:33.
After a decade of fighting for regulatory approval and public acceptance, a biotechnology firm has released genetically engineered mosquitoes into the open air in the United States for the first time. The experiment, launched this week in the Florida Keys — over the objections of some local critics — tests a method for suppressing populations of wild Aedes aegypti mosquitoes, which can carry diseases such as Zika, dengue, chikungunya and yellow fever. Oxitec, the firm based in Abingdon, UK, that developed the mosquitoes, has previously field-tested the insects in Brazil, Panama, the Cayman Islands and Malaysia. But until now, owing to a circuitous series of regulatory decisions and pushback from Florida residents (see ‘A long road’), no genetically engineered mosquito had been trialled in the United States — even though the country previously allowed tests of a genetically engineered diamondback moth (Plutella xylostella) in New York and an engineered pink bollworm (Pectinophora gossypiella) in Arizona, both developed by Oxitec. “When something new and revolutionary comes along, the immediate reaction of a lot of people is to say: ‘Wait.’,” says Anthony James, a molecular biologist focused on bioengineered mosquitoes at the University of California, Irvine. “So the fact that [Oxitec] was able to get the trial on the ground in the United States is a big deal.”
Oxitec releases first genetically modified mosquitoes in U.S.
16928J. Knutson, Axios, 2021-05-01 15:46:09.
Oxitec, a British startup determined to prevent instances of mosquito-borne disease, released thousands of genetically modified mosquito eggs in the Florida Keys this week as part of a test approved by the Environmental Protection Agency and Florida's agriculture department. Why it matters: It marks the first release of genetically modified mosquitoes in the U.S. and has some locals worried about how this will impact the broader ecosystem, according to CNN. How it works: Oxitec expects to target Aedes aegypti, an invasive species of mosquito that carries several dangerous diseases like yellow fever, dengue and Zika virus.
Armyworm meets Friendly moth
17066M. Francisco, Nature Biotechnology, 39:532-532. 2021-05-01 14:11:25.
The fall armyworm moth, a pest so named for its caterpillar’s invasive and destructive behavior, may now have to contend with a ‘Friendly’ foe. UK-based Oxitec and agbiotech giant Bayer have jointly developed a genetically modified variety to combat the fall armyworm (Spodoptera frugiperda), an insect pest causing severe destruction to corn, rice and sorghum crops in more than 100 countries. Brazil has approved field trials of the GM ‘Friendly’ fall armyworm moths. The technology, originally developed at Oxford University, uses male self-limiting fall armyworm moths. When males are released into infested areas, the moths mate with wild females, but as they produce no female offspring in the next generation, this reduces the population of crop-eating caterpillars. The approach is species specific, is self-limiting in the environment, and has no impact on beneficial insects such as bees. Oxitec has successfully used the technology with mosquitoes to control dengue and Zika in Brazil, and is currently releasing Friendly mosquitoes in the Florida Keys as part of a US Environmental Protection Agency trial. Though some groups remain opposed to the technology, most experts agree that GMOs must be part of an integrated pest management solution, in addition to rotating crops, encouraging the growth of a pest’s natural predators, and using pesticides selectively to mitigate resistance buildup.
Genetically modified mosquitoes have landed in the Keys. Here’s what you need to know
16918G. Filosa, Miami Herald, 2021-05-01 13:54:49.
More than 20 million genetically modified mosquitoes are coming to the Florida Keys this year, in a landmark project by British biotech company Oxitec and Monroe County’s Mosquito Control District. This mosquito control method hasn’t been used in the U.S. before. It’s a pilot program and the first trial began over the past week. The project is aimed at reducing the population of the invasive Aedes aegypti, which carries diseases like Zika. This is the first time in the country that the U.S. Environmental Protection Agency has issued the “experimental use permit” for this method.
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