Board Thread:Naruto Discussions/@comment-945885-20140709082448/@comment-24531362-20140715011857

Man of Sin wrote:

Juinjutsu was based on a already existing KKG. It's like how Obito, Madara, and Danzo getting wood release. In both examples most did not survive having foreign KKG place in their bodies.

Plus, Madara already had the genetics for the Rinnegan being a descendent of Hagoromo.

Kaguya has already shown the ability to combine all the elements togethers(Truth Seeking Balls) and allowing Madara to use storm release. So I think it's safe to say that KKGs to combine the elements came from her as well.

I was not saying that Orochimaru's juinjutsu are examples of KKG, just that they are examples of the mutagenic effects of chakra on the human genome. In a technical sense, they are adaptations of a KKG used to approximate an unknown variable. The other examples (i.e Wood release, the Rinnegan of both Madara and Sasuke, Storm Release, and the Truth-Seeking Ball super-Kekkei Tota funfest) are all further proof of this. In each case, the introduction of outside chakras (Hashirama's, Asura's, Kaguya's, the Shinju's, and/or Hagoromo's in a case by case basis) caused a genotypic alteration in the affected individual, thereby allowing for the phenotypic trait, the KKG, to manifest. The evidence was presented in order to show that possession of the CCS simply implied a long-extinct person was mutated by chakra to possess Tenketsu and that he or she passed it down through descent with modification, as opposed to implying that Kaguya was a direct ancestor of everyone alive.