Japanese genes(Haplogroups)

Hey, I'm a person interested in human genetics. And also how it ties into Japan.

Now I already know the male or Y-DNA of Japan.
Japan has Haplogroup N(Nordic), Haplogroup C(Mongol), Haplogroup D(Tibetan) and Haplogroup O(Sino) in their population.

But what of the mtDNA. The Female mtDNA?
That I'm not so knowledgeable about.

I do this about Japan's mtDNA thus far:
Japan has Haplogroup B(Mongol), Haplogroup F(Sino) and Haplogroup Y(Nivkh) in their population.
But what of the other haplogroups? Does Japan have Haplogroup G, Haplogroup Z or Haplogroup W?

Japanese are a hybrid of all Asians, I think.
But all human beings are more or less hybrids.

WHY you are interested in genes?