MtDNA microevolution in Southern Chile's archipelagos

Dados Bibliográficos

ID8315757
AutoresFederico García (University of Chile), M Moraga (0000-0002-8217-9950, University of Chile), Soledad Vera (University of Chile), Hugo Henríquez (University of Chile), Elena Llop (0009-0000-0675-2076, University of Chile), Eugenio Aspillaga (University of Chile), Francisco Rothhammer (0000-0001-5228-1180, University of Tarapacá, autor correspondente)
Ano2006
Volume129
Fascículo3
Páginas473-481
Data de publicação2006-03-01
Peer ReviewedSim
Open AccessSim
TipoARTICLE
PeriódicoAmerican Journal of Physical Anthropology (JOURNAL)
Identificadores do periódicoISSN: 0002-9483 • E-ISSN: 1096-8644
EditoraWiley (PUBLISHER • GB)
DOI10.1002/ajpa.20297
PMID16323203
OpenAlexW2020199922
IdiomaEN
Citações recebidas13
Referências citadas25

The genetic variability of four predominantly Indian populations of southern Chile's archipelagos was examined by determining the frequencies of four mitochondrial DNA haplogroups that characterize the American Indian populations. Over 90% of the individuals analyzed presented Native American mtDNA haplogroups. By means of an unweighted group pair method with arithmetic mean (UPGMA) dendrogram, a principal component analysis (PCA) derived from a distance matrix of mtDNA, and the exact test of population differentiation, we are able to prove the existence of a North‐South cline. The populations in the northern part of the archipelagos are genetically similar to the Huilliche tribe, while the groups from the South are most closely related to the Fueguino tribe from the extreme South of Chile, and secondarily to the Pehuenche and Mapuche, who are found to the North and East of Chiloé archipelago. These results are consistent with a colonization of the southern archipelagos from Tierra del Fuego. We evaluate the evolutionary relationships of the population of the Chiloé area to groups from other geographic areas of Chile, using analysis of molecular variance (AMOVA). Three Amerindian clusters are identified: one formed by the Aymará and Atacameño, a second by the Huilliche, and a third including the Mapuche, Pehuenche, and Fueguino tribes, and the population inhabiting the South of the Chiloé arcipelago. These groups exhibit a North‐South gradient in the frequency of haplogroup B, confirmed by F ST tests. Am J Phys Anthropol, 2006 © 2005 Wiley‐Liss, Inc

Archipelago · Biological dispersal · Biology · Genetic diversity · Geography · Haplogroup · Haplotype · Population · Tribe · UPGMA · Demography · Ecology · Forensic and Genetic Research · Genetic diversity and population structure · Genetics · Genomics and Phylogenetic Studies