I think naruto has is own bloodline. more surprising is that I think that naruto's bloodline is the sharingen. itachi said it himself that there are three people in the world that can the have the mhangko sharingen and I think the thired person is naruto, because we don't know who was his mother (the fourth is suspected to be th father). so, I think that naruto's mother was an uchiah, and like he inhert his mother's bloodline, and that makes naruto to a part from the uchiah.