Who were the first Americans, where did they come from and how did they spread? The story is as thrilling as an adventure story—in fact, it is one.
To assess the timing, places of origin and extent of admixture between these components, we performed an analysis of the Y-chromosome haplogroup Q, which is the only Pan-American haplogroup and accounts for virtually all Native American Y chromosomes in Mesoamerica and South America.
This study examines the mtDNA diversity of the proposed descendants of the multiethnic Hohokam and Anasazi cultural traditions, as well as Uto‐Aztecan and Southern‐Athapaskan groups, to investigate hypothesized migrations associated with the Southwest region.
Recent and compelling archaeological evidence attests to human presence 14.5 ka at multiple sites in South America
and a very early exploitation of extreme high-altitude Andean environments.
Using phylogenetic modelling with allele frequency correlations and rare variation, we present a comprehensive model for the complex peopling of North America.
In spite of many genetic studies that contributed for a deep knowledge about the peopling of the Americas, no consensus has emerged about important parameters such as the effective size of the Native Americans founder population.
The remains of two infants were recovered at Upward Sun River (USR), and have been dated to around 11.5 thousand years ago (ka)6.
Both archaeological and bioanthropological hypothesis suggest a common population origin for the region, and point that their biological differences would stem from genetic drift, geographic isolation and adaptation to the environment. In this study we analyze HVR-1 mitochondrial sequences from 70 ancient and 306 extant samples from native groups with the aim to test these hypotheses
South America’s demographic complexity has been historically influenced by population interactions such as the European migration and African slavery trade, besides Native Americans groups previously settled in the territory.
Here we briefly review the evidence for current hypotheses on the peopling process of the Americas and discuss how ancient mitochondrial DNA can provide a unique temporal perspective.