 Initially it was thought that, plastid transformation, which yields transplastomic plants in which the pollen does not contain the transgene, not only increases biosafety, but also facilitates the coexistence of genetically modified, conventional and organic agriculture.Therefore, developing such crops was a major goal of research projects such as Co-Extra and Transcontainer.However, a study conducted on the tobacco plant in 2007 has disproved this theory.