Mtdna B4a1a1 : Polynesian or East Asian female ?

[ButlerKing]

mtDNA B4a1a1 is found 60% of New Guinean Archipelago and B4a1a1a1 is found 80-94% of modern Polynesian. Apparently it started out as East Asian origin and branched out from B4a1 9000 years ago however at the same time this Polynesian motif had already evolved 6,000 to 8,000 years ago in the Melanesian regions. However today it is almost non-existent in East Asia and is found only 0.89% in Southern Philippines and 1.4% to 14% in eastern Indonesia ( Polynesian females or New Guinean female migration)

According to scientist. The high genetic drift was the result of a few very successful East Asian women mixing with Melanesian males.

1st graph: B41a1
2nd graph: B4a1a1
3rd graph: B4a1a1a1




" Examination of mitochondrial DNA lineages shows that they have been evolving within Island Southeast Asia (ISEA) for a longer period than previously believed. Polynesians arrived in the Bismarck Archipelago of Papua New Guinea at least 6,000 to 8,000 years ago, and modern Polynesians are the result of a few Austronesian seafarers mixing with Melanesians.[12]

A study in 2008 argued that Polynesians are distinctive, and "tend to cluster with Micronesians, Taiwan Aborigines, and East Asians, and not Melanesians." The study's conclusion was that "the ancestors of Polynesians moved through Melanesia relatively rapidly and only intermixed to a very modest degree with the indigenous populations there."[14]

B4a1a1 + B4a1a1a1

[ButlerKing]

Believe or not It is women like Papuans from Bismarck Archipelago and Polynesian who carries the highest frequencies of B4a in the world ( although all of them are of B4a1a1 and B4a1a1a1 origin )


New Guinean Papuan women




Polynesian women




How would it be East Asian origin when it already evolved like 6000-8000 years and the females would have look like non-east Asian or mixed. Although it's origin were East Asian. However the fact is the female who spread B4a1a1 or B4a1a1a1 to Southheast Asia would have obviously looked like the females above.

[ButlerKing]

I'm amazed by how mtDNA B4 is higher in the Melanesians and Polynesian than East Asian women itself.

[ButlerKing]

And you know what's so funny? mtDNA B4a1a1 which is 20 - 60% of New Guineans shows mostly 0% East Asian DNA. Where as Hawaiins who have 60-80% mtDNA B4a1a1 are over 65% East Asian although they also have 30-50% haplogroup O3 where as Papuans have only 9 - 15%.

[Harley]

Bump.

I just found out from my preliminary 23andme results(two more weeks until done) that I am B4a1a1.

What I know about my ancestry is that I am Samoan/poly with some German and East Asian blood. As many have said before about my phenotype, I look majority poly.

I would like to read more about this.