日语韩语或都发源于中国东北(2)

Martine Robbeets at the Max Planck Institute for the Science of Human History in Jena and her colleagues used linguistic, archaeological and genetic evidence to conclude instead that it was the onset of millet cultivation by farmers in what is now China that led to the spread of the language family.
The team did this by studying the linguistic features of the languages and using computational analysis to map their spread through space and time based on their similarities to each other. Doing so allowed Robbeets and her team to trace the proto-Transeurasian language back to the Liao river area of north-east China around 9000 years ago.
This is the exact time and place that millet is known to have been domesticated, according to archaeological evidence, says Robbeets.
By adding genetic information and carbon-dating millet grains, the team revealed that the proto-Transeurasian-speaking population split into separate communities that then started adopting early forms of Japanese, Korean and the Tungusic languages to the east of the original site, as well as early forms of Mongolic languages to the north and of Turkic languages to the west.