//Native Americans

“The indigenous peoples of the Americas are the descendants of the pre-Columbian inhabitants of the Americas. Pueblos indígenas (indigenous peoples) is a common term in Spanish-speaking countries. Aborigen (aboriginal/native) is used in Argentina, whereas “Amerindian” is used in Quebec, The Guianas, and the English-speaking Caribbean.[21][22][23][24] Indigenous peoples are commonly known in Canada as Aboriginal peoples, which include First Nations, Inuit, and Métis peoples.[25] Indigenous peoples of the United States are commonly known as Native Americans or American Indians, and Alaska Natives.[26]

According to the prevailing theories of the settlement of the Americas, migrations of humans from Asia (in particular North Asia)[27][28] to the Americas took place via Beringia, a land bridge which connected the two continents across what is now the Bering Strait. The majority of experts agree that the earliest pre-modern human migration via Beringia took place at least 13,500 years ago.[29] These early Paleo-Indians spread throughout the Americas, diversifying into many hundreds of culturally distinct nations and tribes. According to the oral histories of many of the indigenous peoples of the Americas, they have been living there since their genesis, described by a wide range of creation myths.” — Wikipedia

A time transect of exomes from a Native American population before and after European contact

To investigate whether a pre-existing genetic component contributed to this phenomenon, here we analyse 50 exomes of a continuous population from the Northwest Coast of North America, dating from before and after European contact.

2016-11-15T23:10:01+00:00 November 15th, 2016|

Y-chromosome analysis reveals genetic divergence and new founding native lineages in Athapaskan-and Eskimoan-speaking populations

We analyzed Y-chromosomal data from Inuvialuit, Gwich’in, and Tłįchǫ populations living in the Northwest Territories of Canada. Over 100 biallelic markers and 19 chromosome short tandem repeats (STRs) were genotyped to produce a high-resolution dataset of Y chromosomes from these groups.

2016-11-10T03:20:48+00:00 November 10th, 2016|

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 recent bottleneck of Y chromosome diversity coincides with a global change in culture

Here, we present a study of 456 geographically diverse high-coverage Y chromosome sequences, including 299 newly reported samples. Applying ancient DNA calibration, we date the Y-chromosomal most recent common ancestor (MRCA) in Africa at 254 (95% CI 192–307) kya and detect a cluster of major non-African founder haplogroups in a narrow time interval at 47–52 kya...

2016-12-11T19:07:50+00:00 October 28th, 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|

Pre-Hispanic Mortuary Practices in Quebrada de Humahuaca (North-Western Argentina): Genetic Relatedness among Individuals Buried in the Same Grave

Almost all pre-Hispanic societies from Quebrada de Humahuaca (north-western Argentina) buried their defuncts in domestic areas, demonstrating the importance of death and its daily presence among the living. Presumably, the collective graves contained related individuals, a hypothesis that can be tested through the study of ancient DNA. This study analyzes autosomal and uniparental genetic markers in individuals from two archaeological sites in Quebrada de Humahuaca occupied during the Late Formative (1450–1050 BP) and Regional Developments I (1050–700 BP) periods. Mitochondrial and Y-chromosome haplotypes were compared in order to establish possible maternal and paternal relatedness. Genotypes for 15 autosomal STRs were used to calculate pairwise relatedness coefficients and pedigree probabilities. High kinship levels among individuals buried in the same graves were found in both sites. Although only two particular cases were analyzed, these results represent an important contribution to the study of mortuary practices in the region by means of ancient DNA.

2016-07-02T09:44:43+00:00 July 2nd, 2016|

LETTER: On the use of Chinese population as a proxy of Amerindian ancestors in genetic admixture studies with Latin American populations

We read the recent article of Magalhães da Silva et al1 reporting the correlation between biogeographic ancestries, estimated using 30 ancestry informative markers (AIMs), and self-reported skin color in two different Brazilian Northeastern populations (Fortaleza and Salvador, capitals of the states of Ceará and Bahia, respectively). The authors observed that African ancestry is more correlated in the sample from Salvador than in the one from Fortaleza and that the use of different African populations as proxies of the Brazilian’s African ancestors may influence the results....

2016-06-16T09:45:36+00:00 June 16th, 2016|

MtDNA and Y-chromosomal diversity in the Chachapoya, a population from the northeast Peruvian Andes-Amazon divide

The ancient Chachapoya were an aggregate of several ethnic groups that shared a common language, religion, and material culture. They inhabited a territory at the juncture of the Andes and the Amazon basin. Their position between those ecozones most likely influenced their genetic composition. We attempted to better understand their population history by assessing the contemporary genetic diversity in the Chachapoya and three of their immediate neighbors (Huancas, Jivaro, and Cajamarca)....

2016-06-11T05:57:57+00:00 June 11th, 2016|


Haplogroup A is a branch on the maternal tree of human kind. Its age is between 19,300 and 29,100 years (Behar et al., 2012b).

2018-03-07T23:19:26+00:00 June 6th, 2016|