Board Thread:Naruto Discussions/@comment-1512913-20170609150729/@comment-1512913-20170610111415

Caps warning... edit or it shall be deleted. For the answers, the theory that Kurama's chakra sort of suppressed Asura's chakra in Naruto kind of makes sense. But I have another theory of my own, similar, but more complex.

Some of us here may know the very basics of how genes in terms of heredity work and I have my own theory about how it all works in relation to chakra in general, being a jinchuuriki and an incarnate.

So first, Naruto is foremost a child of Minato and Kushina, so his genome, sans mutations, consists partially of some of Minato's genes and some Kushina's, with some variables because of mutation. His chakra has therefore traits of both Kushina and Minato, but they don't have to be the special traits, they might not have been inherited. Then there is Asura's chakra. In my opinion, when it comes to being an incarnate, traits of Asura's chakra, Minato's chakra and Kushina's chakra overwrote each other in parts. In case of which, Asura sort of acts like a 3rd parent to Naruto in terms of chakra. That automatically means, all traits of Asura, Minato and Kushina can't be inherited and manifested in Naruto, since they have to split. Even more so, there is also Kurama, whose chakra has been merging with Naruto's since birth, acting like a 4th parent of sorts. Therefore, Naruto has circa one-fourth of traits from Asura, Minato, Kushina and Kurama + some original ones from mutations.

In Hashirama, Asura's chakra had to compete only against his parents' chakras, leaving more space for traits to be inherited. Not to mention, Hashirama might have inherited all the best traits from both of his parents and also Asura, being super lucky, plus also possibly having manifested a positive mutation, being super super lucky. In Naruto, Asura's chakra had to compete against not only Minato's and Kushina's, but also Kurama's, leaving less space for traits to be inherited. Not to mention Naruto might have inherited all the worst traits from both Minato and Kushina, Asura and Kurama, being super unlucky, on top of which also having possibly manifested a negative mutation, being super super unlucky.

So in short, the two main reasons are: space and luck, or lack of thereof.