Journal
SCIENCE ADVANCES
Volume 7, Issue 39, Pages -Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.abg7261
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Funding
- National Science Centre, Poland [2014/15/D/NZ8/00285, 2017/01/X/NZ8/00410, 2015/17/D/NZ2/03711, 2011/01/m/HS3/03432]
- Foundation for Polish Science [TEAM/2016-2]
- NIGMS [GM007753]
- Polish Ministry of Science and Higher Education [6817/IA/SP/2018]
- [4815/E-343/SPUB/2016/1-1]
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The Tiwanaku civilization flourished in the Lake Titicaca basin, and genetic analysis showed genetic continuity despite cultural and political changes. The ritual center of Tiwanaku exhibited high diversity, but most human offerings associated with it had pure Titicaca basin ancestry.
Tiwanaku civilization flourished in the Lake Titicaca basin between 500 and 1000 CE and at its apogee influenced wide areas across the southern Andes. Despite a considerable amount of archaeological data, little is known about the Tiwanaku population. We analyzed 17 low-coverage genomes from individuals dated between 300 and 1500 CE and demonstrated genetic continuity in the Lake Titicaca basin throughout this period, which indicates that the substantial cultural and political changes in the region were not accompanied by large-scale population movements. Conversely, the ritual center of Tiwanaku revealed high diversity, including individuals with primarily local genetic ancestry and those with foreign admixture or provenance from as far as the Amazon. Nonetheless, most human offerings associated with the Akapana platform exhibited pure Titicaca basin ancestry and dated to ca. 950 CE-the onset of Tiwanaku's decline as a sociopolitical center. Our results strengthen the view of Tiwanaku as a complex and far-reaching polity.
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