DNA Links Northeastern Proto-Thais to Southern China

No Comments

via Khaosod English, 13 November 2018: The DNA evidence discussed lines up with the prevailing theory about human migration in Mainland Southeast Asia in the last 4,000 years. Unfortunately, the article does not mention any specific paper where this research would have been published in.

BANGKOK — New DNA tests show that prehistoric Thais in the northeast came from southern China, while Mon and Khmer people inhabited that region prior to their arrival. Confirming what had been understood for the first time through DNA testing, Thammasat University Professor Samerchai Poonsuwan presented the test results Monday. The professor of sociology and […]

Source: DNA Links Northeastern Proto-Thais to Southern China

Categories: Thailand


Denisovan DNA in modern Melanesians

No Comments

Some interesting news on the modern-day Melanesians, Pacific Islanders who lived east of Indonesia. A study of comparing the DNA of modern human populations, the Neanderthals and Denisovans has discovered that the Melanesians contain traces of DNA from both Neanderthals and the mysterious Denisovans which in turn has implications for how and when populations of hominids interacted with each other in the past.

Excavating Neandertal and Denisovan DNA from the genomes of Melanesian individuals
Vernot et al.
Science, DOI: 10.1126/science.aad9416

Denisovan DNA excavated in modern Pacific Islanders
HS Newsbeat, 17 March 2016

Pacific islanders got a double whammy of Stone Age DNA
Science News, 17 March 2016

Although Neandertal sequences that persist in the genomes of modern humans have been identified in Eurasians, comparable studies in people whose ancestors hybridized with both Neandertals and Denisovans are lacking. We developed an approach to identify DNA inherited from multiple archaic hominin ancestors and applied it to whole-genome sequences from 1523 geographically diverse individuals, including 35 previously unknown Island Melanesian genomes. In aggregate, we recovered 1.34 gigabases and 303 megabases of the Neandertal and Denisovan genome, respectively. We use these maps of archaic sequences to show that Neandertal admixture occurred multiple times in different non-African populations, characterize genomic regions that are significantly depleted of archaic sequences, and identify signatures of adaptive introgression.

View paper here.

Asians and Native Americans share common ancestry in China

No Comments

Genetic study with possible implications for the origins of populations in Southeast Asia.

DNA shows ancestry of present-day Asians, Native Americans
Channel NewsAsia, via AFP, 23 January 2013

DNA analysis of an early modern human from Tianyuan Cave, China
PNAS January 22, 2013
doi: 10.1073/pnas.1221359110

Read More

Another attempt to extract Hobbit DNA

No Comments

Researchers from the University of Adelaide are planning a new attempt to extract DNA from the teeth of the Homo floresiensis that, if successful, might just be able to put the debate over whether the Hobbit is a new species or a diseased human being to rest. Previous attempts have been made, unsuccessfully, but the U of A researchers are hoping to use a different technique to extract DNA which basically consists of drilling a tooth at a lower speed. It remains to be seen if there is any DNA left to be extracted, though. Stay tuned, I guess. With any luck, 2011 might be the year this debate gets put to rest.

Homo floresiensis skull, wikicommons

Researchers to drill for hobbit history
Nature News, 05 January 2011
Read More

Categories: Indonesia