Wow this is interesting,thanks for posting it. I have an article somewhere on where they found this chromosome in asians that was linked to african people.I'll dig it up and then add it to a reply here in this thread. I guess no one wants to be black or something,because most asians look at themselves as being white...or closest to white people,when in fact they are closer in genetics to blacks.
Y Chromosome Study Points to Africa as Origin of
Modern Asians
Evidence of ancient migration embedded in the Y chromosome of Asian men today points to an African origin for modern Asians thousands of years ago, contradicting one interpretation of the region's abundant fossil record, according to a report in the May 11 edition of the journal Science.
A team of Chinese and American scientists led by researchers at The University of Texas School of Public Health at Houston found that analysis of the chromosome that determines male gender "indicates that modern humans of African origin completely replaced earlier populations in East Asia." The finding counters an alternative theory based on the fossil record that holds Asians may have originated independently in the region and later interbred with other migrating populations.
Co-lead author Bing Su, Ph.D., a research fellow in UT-Houston's Human Genetics Center, explained that the team's findings fully support the "Out of Africa" hypothesis that modern humans originated in Africa about 100,000 years ago and spread worldwide, replacing local populations.
"I think we have strong evidence explaining the modern population in East Asia," Su said of the study, which analyzed Y chromosome data from 12,127 Asian males from 163 populations covering a geographic area that spreads from Central Asia, through China and Southeast Asia out into island nations in the Pacific Ocean. Su explained that the large sample size and the diverse group of populations covered made the study the most comprehensive yet using Y chromosome analysis in East Asia.
"We came to a simple conclusion: There are no old lineages left,"
Previous Y chromosome research led by Stanford University scientist Peter Underhill, one of 22 co-authors of this study, showed that Africans represent the world's oldest population and also identified one variation in the Y chromosome that originated in Africa an estimated 44,000 years ago that is shared by all non-African populations.
In this study, researchers focused on three genetic markers on Y chromosomes that are known to occur only in younger, non-African populations. If the study found a male subject who did not carry one of these three variations, Su explained, that would indicate an ancient, non-African lineage and would undermine the "Out of Africa" hypothesis.
http://publicaffairs.uth.tmc.edu/dis...y/ychromo.html