Board Thread:Theories and Speculation/@comment-27082825-20150116155842/@comment-26023629-20150122235226

Ok, that clears things up. Well, as I said above, it seems unlikely that such a thing could be created by attempting to refine one gene into a new form, as breeding for one specific trait would just enhance that trait, not create a new one.

I agree that they wouldn't share magnet release- later I leaned more towards the idea that the Land of Earth just abducted kekkei genkai users from other nations and forced their participation in their projects.