In 1973, Herbert Boyer and Stanley Cohen created the first genetically modified organism by inserting a kanamycin resistance gene into a bacterium. This event marked the beginning of a complex debate over what constitutes genetic modification. Definitions vary widely across international bodies and countries. The European Union initially included selective breeding in its definition but later excluded traditional methods like mutation breeding. The Food and Agriculture Organization states that organisms must be altered in ways that do not occur naturally by mating or natural recombination. However, horizontal gene transfer is a common natural phenomenon, adding confusion to these definitions. Some crops developed in laboratories, such as triticale grain from 1930, fit broad definitions but are not considered GMOs today. Scientists argue that current definitions focus on process rather than product, making them scientifically meaningless categories. The United States Department of Agriculture distinguishes between genetically modified organisms and genetically engineered organisms based on molecular biology techniques.
Historical Milestones In Engineering
Paul Berg combined DNA from a monkey virus with lambda virus DNA in 1972 to create the first recombinant molecule. Two years later, Boyer and Cohen produced the first living genetically modified organism using bacterial plasmids. Rudolf Jaenisch created the world's first transgenic mouse in 1974 by introducing foreign DNA into an embryo. It took eight more years before mice could pass this trait to their offspring. The first plant was developed in 1983 when Michael W. Bevan and colleagues infected tobacco with Agrobacterium containing an antibiotic resistance gene. Genentech founded in 1976 became the first genetic engineering company. They announced human insulin production in bacteria in 1978, which received FDA approval in 1982 under the brand name Humulin. The Flavr Savr tomato became the first commercialized GM food in 1994. China introduced virus-resistant tobacco commercially in 1992. The GloFish zebrafish appeared in US markets in 2003 as the first commercialized GM animal pet. AquAdvantage salmon gained approval for food use in 2015 after being raised in Panama.