South America

//South America

Genetic studies of the peopling of the Americas: What insights do diachronic mitochondrial genome datasets provide?

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.

2017-06-22T13:52:27+00:00 June 22nd, 2017|

Antiquity of mtDNA lineage D1g from the southern cone of South America supports pre-Clovis migration

The discovery of the Monte Verde site was revolutionary; it led to wide acceptance of the pre-Clovis hypothesis and its corollary, the coastal migration route. Although numerous additional pre-Clovis sites have been reported in South America, debate continues about the timing of the earliest human migration. Perhaps because of the paucity of very early sites in North America, researchers there are increasingly focused on the genomic evidence.

2017-06-17T16:46:01+00:00 June 17th, 2017|

A new subhaplogroup of native American Y‐Chromosomes from the Andes

To identify new single nucleotide polymorphisms (SNPs) and increase the phylogenetic resolution of the major haplogroup Q found in the Americas, we have performed a search for new polymorphisms based on sequencing divergent Y chromosomes identified by microsatellite haplotype analysis.

2018-02-19T11:45:27+00:00 October 28th, 2016|

A continuum of admixture in the Western Hemisphere revealed by the African Diaspora genome

Here we present genetic variation from deeply sequenced genomes of 642 individuals from North and South American, Caribbean and West African populations, substantially increasing the lexicon of human genomic variation and suggesting much variation remains to be discovered in African-admixed populations in the Americas.

2016-10-14T21:40:35+00:00 October 14th, 2016|

Postglacial viability and colonization in North America’s ice-free corridor

Our findings reveal that the first Americans, whether Clovis or earlier groups in unglaciated North America before 12.6 cal. kyr BP, are unlikely to have travelled by this route into the Americas. However, later groups may have used this north–south passageway.

2016-08-10T15:12:34+00:00 August 10th, 2016|

The Genetic Legacy of the Pre-Colonial Period in Contemporary Bolivians

Only a few genetic studies have been carried out to date in Bolivia. However, some of the most important (pre)historical enclaves of South America were located in these territories. Thus, the (sub)-Andean region of Bolivia was part of the Inca Empire, the largest state in Pre-Columbian America.

2018-02-17T05:15:06+00:00 July 3rd, 2016|

Large scale mitochondrial sequencing in Mexican Americans suggests a reappraisal of Native American origins

The Asian origin of Native Americans is largely accepted. However uncertainties persist regarding the source population(s) within Asia, the divergence and arrival time(s) of the founder groups, the number of expansion events, and migration routes into the New World. mtDNA data, presented over the past two decades, have been used to suggest a single-migration model for which the Beringian land mass plays an important role.

2016-07-23T15:15:56+00:00 July 2nd, 2016|