This news comes from the Harvard Medical School. Researchers there have completed the first whole-genome analysis of ancient human DNA from Southeast Asia and their study reveals that there were at least 3 major waves of human migration into the region over the past 50,000 years. Each migration helped shape the genetics of the modern people living in the area today.
The study defines SE Asia as being the area east of India and south of China. The ancient DNA was obtained from 18 ancient skeletal remains who lived between 4.1–1.7 kya in what is today Vietnam, Thailand, Myanmar, & Cambodia.
Results from this study indicate that the first migration took place about 45 kya by people who were hunter-gatherers. Then around 4500 years ago there was a large-scale influx of people from the area of China who brought with them farming. They interbred with the locals already in the region. During the Bronze Age there were more migrations from China into SE Asia. These people brought with them different languages. It’s interesting to note that the same pattern seen in this region echoes that seen in ancient Europe! That pattern is that first came the hunter-gatherers, then the farmers, and then the Bronze Age immigrants. However, there is a major difference because in Europe much of the ancestral diversity has faded due to population interbreeding but in SE Asia the people have retained more variation by far.
Researchers have concluded that the reason for this difference is because farmers arrived in SE Asia much more recently than in Europe around 4500 years ago compared to 8000 years ago in Europe. Thus, populations in SE Asia have not had as long to interbreed as they have in Europe.
So as far as this study shows SE Asia was populated from China’s hunter-gatherers, then farmers, and then Bronze Age migrants who came OUT OF CHINA. I assure you some, if not many, of those migrants into SE Asia came from the Red Deer Cave People in China. A species of ancient human ancestor the West is not quite sure what to do with. I find it very interesting that the more research done, the more CHINA is becoming significant in terms of ancient human ancestors and their origins.