Human Genetic Diversity in Asia

Report on the recent paper Mapping Human Genetic Diversity in Asia in BBC News Genetic 'map' of Asia's diversity . Excerpts:
"The study found that, as expected, individuals who were from the same region, or who shared a common language also had a great deal in common genetically.

But it also answered a question about the origin of Asia's population. It showed that the continent was likely populated primarily through a single migration event from the south.

Previously, there has been some debate about whether Asia was populated in two waves - one to South East Asia, and a later one to central and north-east Asia, or whether only a single migration occurred."
More detailed discussion and links in Rajib Khan's post Are Chinese subsets of Southeast Asians? .