Demographic history and genetic structure in pre-Hispanic Central Mexico
Villa-Islas V, Izarraras-Gomez A, Larena M et al.
Publication Details
Comprehensive information about this research publication
Abstract
Summary of the research findings
Aridoamerica and Mesoamerica are two distinct cultural areas in northern and central Mexico, respectively, that hosted numerous pre-Hispanic civilizations between 2500 BCE and 1521 CE. The division between these regions shifted southward because of severe droughts ~1100 years ago, which allegedly drove a population replacement in central Mexico by Aridoamerican peoples. In this study, we present shotgun genome-wide data from 12 individuals and 27 mitochondrial genomes from eight pre-Hispanic archaeological sites across Mexico, including two at the shifting border of Aridoamerica and Mesoamerica. We find population continuity that spans the climate change episode and a broad preservation of the genetic structure across present-day Mexico for the past 2300 years. Lastly, we identify a contribution to pre-Hispanic populations of northern and central Mexico from two ancient unsampled "ghost" populations.
Ancient DNA Samples
10 ancient DNA samples referenced in this publication
| Sample ID | Date/Era | Country | Locality | Sex | mtDNA | Y-DNA |
|---|---|---|---|---|---|---|
| E19CdV | 660 CE | Mexico | Cañada de la Virgen (Guanajuato) | F | D1m |
|
| E4CdV | 670 CE | Mexico | Cañada de la Virgen (Guanajuato) | M | A2ai |
F |
| E7CdV | 540 CE | Mexico | Cañada de la Virgen (Guanajuato) | F | A2+(64) |
|
| E8CdV | 540 CE | Mexico | Cañada de la Virgen (Guanajuato) | M | B2 |
Q-BZ4256 |
| 11R_merged | 729 CE | Mexico | Ranas (Querétaro, Sierra Gorda) | M | D1m |
|
| 2417J | 1100 CE | Mexico | Toluquilla (Querétaro, Sierra Gorda) | F | A2d |
|
| 2417Q | 671 CE | Mexico | Toluquilla (Querétaro, Sierra Gorda) | M | B2l |
Q-M3 |
| 333B_merged | 1300 CE | Mexico | Toluquilla (Querétaro, Sierra Gorda) | F | B2c |
|
| E4_merged | 647 CE | Mexico | La Mina(Michoacán) | F | D1i2 |
|
| E2_merged | 647 CE | Mexico | La Mina(Michoacán) | F | D1i2 |
|
Analysis
Comprehensive review of ancestry and genetic findings
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