While working with the cloning of Wraith in Tollana 's cloning facility, Selvans' scientists were able to isolate the gene responsible for the Wraith psychic abilities. Selvans' scientists then used a virus to splice this gene into goa'uld symbiotes. While the effect is not as potent as it is in the Wraith, it allows the symbiotes to project, as well as implant suggestions in others, as well as communicate with each other. However, the distance is severely limited, and projection and thought implanting requires great concentration.
With further study, Selvans has isolated more specifically the genes that are used for the wraith's telepathic abilities. Using a virus as a vector, Selvans is able to introduce this gene into goa'uld as they are spawned, which increases their ability to use them to equal that of a Wraith commander.