no ted se chystaji na Floride vypustit nejaky 900 milionu genetickych modifikovanych komaru. dale u se u toho pise, ze nebyl podnikut skoro zadny vyzkym rizik. pak samozrejme budeme cist, ze tohle urcite s nicim nesouvisi zejo. obzvlast kdyz stejny experiment meli v Brazili v 2015. geneticky upraveni komari se chovali jinak, nez vedci predpokladali.
2016
https://www.sciencemag.org/...elease-billions-lab-grown-mosquitoes-combat-infectious-disease-will-it
2019
https://www.the-scientist.com/news-opinion/gm-mosquito-progeny-not-dying-in-brazil--study-66434
According to a genetic analysis of mosquitoes in the area, it appears the engineered stock has bred with wild mosquitoes and created viable, hybrid insects, scientists reported in Scientific Reports last week (September 10).
“The claim was that genes from the release strain would not get into the general population because offspring would die,” coauthor Jeffrey Powell, a professor of ecology and evolutionary biology at Yale University, says in a press release. “That obviously was not what happened.”
https://www.dw.com/en/genetically-modified-mosquitoes-breed-in-brazil/a-50414340
After a field experiment between 2013 and 2015, genetically modified mosquitoes are breeding in Brazil. According to the researchers' original plan, all released mosquitoes and their offspring should have died.
...
However, it was already known from previous laboratory experiments that a small proportion of about three to four percent of OX513A descendants can reach adulthood; the scientists had assumed that those would be too weak to reproduce
...
The Yale research team around Jeffrey Powell warns that the newly formed mosquito population could possibly be more robust than the mosquitoes were before.
The authors conclude: "These results demonstrate the importance of having in place a genetic monitoring program during releases of transgenic organisms to detect unanticipated consequences".
Biologists critical of genetic engineering go one step further with their criticism, among them the Brazilian biologist José Maria Gusman Ferraz: "The release of the mosquitos was carried out hastily without any points having been clarified," Ferraz told the newspaper Folha de S. Paulo.
The Munich-based research laboratory Testbiotech, which is critical of genetic engineering, accuses Oxitec of having started the field trial without sufficient studies: "Oxitec's trials have led to a largely uncontrollable situation," CEO Christoph Then told the German Press Agency, dpa. "This incident must have consequences for the further employment of genetic engineering", he demanded.
https://www.sciencemag.org/...9/09/study-dna-spread-genetically-modified-mosquitoes-prompts-backlash
But the paper’s suggestion that this genetic mixing could have made the mosquito population “more robust”—more resistant to insecticides, for example, or more likely to transmit disease—has triggered anti-GM news reports, a backlash from some scientists, and strong pushback from Oxitec. The company, a subsidiary of U.S. biotech Intrexon, has a lot at stake; it recently submitted a new generation of its GM mosquitoes for U.S. regulatory review and hopes to conduct its first U.S. field test next year.
https://www.dailymail.co.uk/...s-released-genetically-modified-mosquitos-Brazil-three-years-ago.html
https://www.idnes.cz/jenprozeny/volny-cas/mate-se-bat-viru-zika.A160828_120000_jpz-volny-cas_jph1
Virus zika byl objeven už v polovině minulého století v Ugandě, ale první větší epidemie propukla až přede dvěma lety v Brazílii.
https://en.wikipedia.org/wiki/Zika_virus
The outbreak began in April 2015 in Brazil, and spread to other countries in South America, Central America, North America, and the Caribbean.
2020 (zadne pouceni ani odpovednost Oxitec?)
https://www.livescience.com/genetically-modified-mosquito-florida.html
Hundreds of millions of genetically modified mosquitoes will soon be released in the Florida Keys island chain to wipe out local populations of disease-carrying mosquitoes, according to news reports.
...
In lab studies, Oxitec found that about 3% of female offspring with the lethal gene survive to adulthood, but these survivors are too feeble to produce offspring, Live Science previously reported. .
https://www.idnes.cz/technet/veda/florida-geneticky-upraveni-komari-oxitec.A200821_103218_veda_mla
Jednou nevýhodou takového řízení komáří populace je jeho dočasnost. Samci se musí do přírody vypouštět pravidelně, jinak se komáři znovu vzpamatují a stavy se vrátí k normálu. Firma proto přišla s druhou generací svého „Přátelského komára“ (firma má anglický výraz „Friendly“ v tomto kontextu registrovaný jako obchodní značku), která se má vypouštět právě na Floridě a označuje se jako OX5034 (I. generace měla označení OX513A).
https://cnn.iprima.cz/...ride-vypusti-750-milionu-geneticky-modifikovanych-komaru-uhodnete-proc-8003
Obyvatelé Floridy se bouří, není jim to ale nic platné. Úřady daly zelenou plánu na vypuštění 750 milionů geneticky modifikovaných komárů na souostroví Florida Keys mezi lety 2021 až 2022. Mají pomoci zredukovat populaci „obyčejných“ komárů, informoval web CNN.
„Administrace použila dolary z daní a vládních zdrojů na experiment ve stylu Jurského Parku. A to navzdory všem naléhavým krizím, kterým náš národ a stát Florida čelí: tedy koronavirové pandemii, rasovým nespravedlnostem a klimatickým změnám,“ uvedla Jaydee Hansonová z Mezinárodního centra pro posuzování technologií a bezpečnost potravin.
„Co by se mohlo pokazit? Nevíme, protože Agentura pro ochranu životního prostředí nezákonně odmítla analyzovat environmentální rizika. Nyní může bez dalšího přezkoumání rizik experiment proběhnout,“ dodala Hansonová.
// matne si vybavuju, ze tohle se konspiracnim reviru tehdy resilo. media sice tohle v kontextu zatajila, ale nekteri z alternativnich medii rikali, ze na stejnym miste byl predtim experiment s komary. takze stejne tak i tihle komari co vypusti 2021-2022 na Floride muzeme s jistotou vedet, ze pokud bude nejakej problem, tak media nezmini tyhle experimenty, ze by tam mohla byt souvislost, a kdo to bude zminovat bude cenzurovanej jako konspirator, protoze vedci pripadne souvislost vylouci. stejne jako u tech experimentu s netopyry
jako jaka je pravdepodobnost, ze vznikne malo pravdepodobna mutace koronaviru z netopyru, oproti relativne realnym obavam z uniku vyroby tehle mutace par let predtim? :) Nevim, jestli je to uplne podstatny, ale sebejistota nekterych je zarazejici.
Mozna kdyby do te argumentace dali vic pokory, pusobili by verohodnejs. nakonec kdo tvrdil, ze se ti modifikovani komari nebudou mnozit?