Tianyuan man

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Tianyuan man (Chinese:  t   田園洞 , s   田园洞 , p  Tiányuándòng Rén) are the remains of one of the earliest modern humans to inhabit East Asia. In 2007, researchers found 34 bone fragments belonging to a single individual at the Tianyuan Cave near Beijing, China. [1] Radiocarbon dating shows the bones to be between 42,000 and 39,000 years old, which may be slightly younger than the only other finds of bones of a similar age at the Niah Caves in Sarawak on Borneo.

Isotope analysis suggests that a substantial part of the diet of these individuals came from freshwater fish. [2]

TianYuan man is considered an early modern human. It lacks several mandibular features common among western Eurasian late archaic humans, showing its divergence. Based on the rate of dental occlusal attrition, it is estimated he died in his 40s or 50s. [3]

DNA tests published in 2013 revealed that Tianyuan man is related "to many present-day Asians and Native Americans". [4] [5] [6] [7] [8] He had also clearly diverged genetically from the ancestors of modern Europeans. [5] He belonged to mitochondrial DNA haplogroup B.

Tianyuan man exhibits a unique genetic affinity for GoyetQ116-1 from Goyet Caves that is not found in any other ancient individual from West Eurasia. He shares more alleles with today's people from the Surui and Karitiana tribes in Brazil than other Native American populations, suggesting a population related to Tianyuan man was once widespread in eastern Asia. [9]

His Y haplogroup was K2b according to David Reich Lab's data. [10]

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References

  1. "Ancient human unearthed in China". BBC news . April 2, 2007. Retrieved February 26, 2011.
  2. Hu, Y.; Shang, H.; Tong, H.; Nehlich, O.; Liu, W.; Zhao, C.; Yu, J.; Wang, C.; Trinkaus, E.; Richards, M. (Jul 2009). "Stable isotope dietary analysis of the Tianyuan 1 early modern human". Proceedings of the National Academy of Sciences. 106 (27): 10971–10974. Bibcode:2009PNAS..10610971H. doi:10.1073/pnas.0904826106. ISSN   0027-8424. PMC   2706269 . PMID   19581579.
  3. Shang, Hong (Apr 17, 2007). "An early modern human from Tianyuan Cave, Zhoukoukian, China". Proceedings of the National Academy of Sciences. 104 (16): 6573–8. Bibcode:2007PNAS..104.6573S. doi:10.1073/pnas.0702169104. PMC   1871827 . PMID   17416672.
  4. "A relative from the Tianyuan Cave". Max Planck Society. 2013-01-21.
  5. 1 2 "A relative from the Tianyuan Cave: Humans living 40,000 years ago likely related to many present-day Asians and Native Americans". Science Daily . 2013-01-21.
  6. "DNA Analysis Reveals Common Origin of Tianyuan Humans and Native Americans, Asians". Sci-News. 2013-01-24.
  7. "Ancient human DNA suggests minimal interbreeding". Science News . 2013-01-21.
  8. "Ancient Bone DNA Shows Ancestry of Modern Asians & Native Americans". Caving News. 2013-01-31.
  9. Yang, Melinda A.; Gao, Xing; Theunert, Christoph; Tong, Haowen; Aximu-Petri, Ayinuer; Nickel, Birgit; Slatkin, Montgomery; Meyer, Matthias; Pääbo, Svante; Kelso, Janet; Fu, Qiaomei (2017). "40,000-Year-Old Individual from Asia Provides Insight into Early Population Structure in Eurasia". Current Biology. 27 (20): 3202–3208.e9. doi:10.1016/j.cub.2017.09.030. ISSN   0960-9822. PMC   6592271 . PMID   29033327.
  10. "Downloadable genotypes of present-day and ancient DNA data (compiled from published papers) | David Reich Lab". reich.hms.harvard.edu. Retrieved 2019-09-11.