“Alex. With your interest in Austronesian languages I’d be interested in comments and criticism regarding the following. I’ve been having a discussion at Dienekes site regarding the southern end of the Sea of
Japan:

http://dienekes.blogspot.com/2008/02/pinghua-han-chinese-are-not-of-han.html

“Specifically my comments concern the unusual
distribution of Y-haps O2a and O2b. Again, my
comments may be controversial but also could be
relevant to considerations for what happened at the northern and western margins of the Sea.

“In fact I reckon here’s what happened: Y-chromosome haplogroup O2 moved along the Korean peninsular to Japan. With the advantage of boating technology developed in the lake that was then the Sea of Japan it was able to move onto the Ryukyu Islands. It then expanded around the South China Sea into South China and islands in Southeast Asia, replacing and mixing with various Y-chromosome C lines who had arrived long before”.

“I also found some links regarding Ryukyu prehistory that provide possible supporting evidence:

http://books.google.com/books? id…2xUGZQ7YqniD_4o

http://www.t-net.ne.jp/~keally/C…es/ okinawa.html

“From an essay I wrote for remote central: ‘Polished stone tools and new pottery styles, probably associated with the Austric-speaking people, replaced the Hoabinhian culture in Malaysia and Thailand about 3500-3000 BC. Both pottery and the polished stone axe with quadrangular cross section appeared in Borneo by
2500 BC (Bellwood 1978)’.

http://remotecentral.blogspot.co…Terry% 20Toohill

“Fits stunningly close to my theory on the origin and spread of O2 Y-chromosome haplogroup covered above”.

btw, welcome to Anthropology.net

http://dienekes.blogspot.com/2008/02/pinghua-han-chinese-are-not-of-han.html

Specifically my comments concern the unusual distribution of Y-haps O2a and O2b. Again, my comments may be controversial but also could be relevant to considerations for what happened also at the northern and western margins of the Sea.

“In fact I reckon here’s what happened: Y-chromosome haplogroup O2 moved along the Korean peninsular to Japan. With the advantage of boating technology developed in the lake that was then the Sea of Japan it was able to move onto the Ryukyu Islands. It then expanded around the South China Sea into South China and islands in Southeast Asia, replacing and mixing with various Y-chromosome C lines who had arrived long before”.

I also found some links regarding Ryukyu prehistory that provide possible supporting evidence:

http://books.google.com/books? id…2xUGZQ7YqniD_4o

http://www.t-net.ne.jp/~keally/C…es/ okinawa.html

From an essay I wrote for remotecentral: “Polished stone tools and new pottery styles, probably associated with the Austric-speaking people, replaced the Hoabinhian culture in Malaysia and Thailand about 3500-3000 BC. Both pottery and the polished stone axe with quadrangular cross section appeared in Borneo by 2500 BC (Bellwood 1978)”.

http://remotecentral.blogspot.co…Terry% 20Toohill

‘Fits stunningly close to my theory on the origin and spread of O2 Y-chromosome haplogroup covered above’.