Vietnamese are closer to the Dai ethnic group and cluster more with southeast Asians rather than Chinese (though not that distant).
It's relative !
Can you grasp this simple English sentence,is pig-Latin your second language ?
The ones are closer because of mutual ancestry ( same tribes ) not overall general population by all means.
Well the samples were collected in respective East Asian countries (the whole study actually included Africans and Europeans, as well as Oceania and American Indians). The context of the study was not on disease and disease control, so any bias on markers on disease were eliminated.
But, of course, the higher the sample size (should be many thousands to be accurate) would give us a much better indication and more genetic markers (maybe more than the Rosenberg 650K if needed) would provide an even higher resolution and more valid results.
Edited by mongobanjum, 26 January 2009 - 08:48 AM.