Great article about the history of all of this. I remember, years ago, when a seed company sued a farmer because they found traces of their GMO in his crop and he had not paid any royalties. Turned out the GMO crops were spreading the genes to neighboring fields.
https://sitn.hms.harvard.edu/flash/2015/from-corgis-to-corn-a-brief-look-at-the-long-history-of-gmo-technology/
An enormous breakthrough in GMO technology came in 1973, when Herbert Boyer and Stanley Cohen worked together to engineer the first successful genetically engineered (GE) organism [5]. The two scientists developed a method to very specifically cut out a gene from one organism and paste it into another. Using this method, they transferred a gene that encodes antibiotic resistance from one strain of bacteria into another, bestowing antibiotic resistance upon the recipient. One year later, Rudolf Jaenisch and Beatrice Mintz utilized a similar procedure in animals, introducing foreign DNA into mouse embryos [6].
Although this new technology opened up countless avenues of research possibilities, immediately after its development, the media, government officials, and scientists began to worry about the potential ramifications on human health and Earths ecosystems [7]. By the middle of 1974, a moratorium on GE projects was universally observed, allowing time for experts to come together and consider the next steps during what has come to be known as the Asilomar Conference of 1975 [8]. At the conference, scientists, lawyers, and government officials debated the safety of GE experiments for three days. The attendees eventually concluded that the GE projects should be allowed to continue with certain guidelines in place [9]. For instance, the conference defined safety and containment regulations to mitigate the risks of each experiment. Additionally, they charged the principal investigator of each lab with ensuring adequate safety for their researchers, as well as with educating the scientific community about important developments. Finally, the established guidelines were expected to be fluid, influenced by further knowledge as the scientific community advanced.
Due to the unprecedented transparency and cooperation at the Asilomar Conference, government bodies around the world supported the move to continue with GE research, thus launching a new era of modern genetic modification.