Gradients of HLA diversity in South American Indians
- 1 January 1997
- journal article
- research article
- Published by Taylor & Francis in Annals of Human Biology
- Vol. 24 (3) , 197-208
- https://doi.org/10.1080/03014469700004932
Abstract
Information concerning the HLA-A and -B loci was considered in relation to 3796 Amerindians living in 39 places in South America, data related to HLA-C being based on a smaller subset of 2989 persons distributed among 33 localities. Synthetic gene frequency maps were then constructed using principal-components analysis. Clearly significant longitudinal (principal component 1) and latitudinal (principal components 1, 2, and 3) clines were observed, most probably indicating ancient migration routes. HLA-Daten der Loci HLA-A und HLA-B von insgesamt 3796 amerikanischen Indianern, die an 39 Orten in Südamerika leben, werden analysiert. Eine entsprechende Analyse für den HLA-C-Locus basiert auf einem kleineren Datenset: 2989 Personen, die sich auf 33 Orte verteilen. Mittels Principal Component Analyse wurden synthetische Genfrequenz-Karten konstruiert. Es ließen sich deutliche signifikante Clines entlang der Längen- (Principal Component 1) und Breitengrade (Principal Components 1, 2 und 3) beobachten, die wahrscheinlich ehemalige Wanderungsrouten anzeigen. On analyse des informations se rapportant aux loci HLA-A et HLA-B de 3796 amérindiens de 39 localisations différentes d'Amérique du Sud, ainsi que celles qui concernent le locus HLA-C mais qui ne sont rassemblées que pour un échantillon plus restreint de 2989 personnes distribuées en 33 localités. Des cartes synthétisant les fréquences géniques sont construites par analyse en composantes principales. On observe des gradients clairement significatifs de longitude (composante principale 1) et de latitude (composantes principales 1, 2 et 3), qui traduisent vraisembablement d'anciennes routes de migration.Keywords
This publication has 41 references indexed in Scilit:
- HLA‐DPB 1 POLYMORPHISM IN SEVEN SOUTH AMERICAN INDIAN TRIBES IN COLOMBIAInternational Journal of Immunogenetics, 1996
- HLA ANTIGENS IN AMERINDIAN GROUPS OF TWO DIFFERENT LINGUISTIC FAMILIES FROM COLOMBIAInternational Journal of Immunogenetics, 1996
- Major histocompatibility complex class II alleles and haplotypes and blood groups of four Amerindian tribes of Northern ColombiaHuman Immunology, 1994
- Molecular analysis of the HLA-DRB genes in two tribes of Brazilian IndiansHuman Immunology, 1994
- Differences in HLA class II alleles of isolated South American Indian populations from Brazil and ArgentinaHuman Immunology, 1993
- Blood genetic systems in four Amazonian tribesAmerican Journal of Physical Anthropology, 1991
- HLA (A, B, C and D) antigens in the Awa‐Kwaiker indians of ColombiaTissue Antigens, 1991
- Unique HLA-DR/DQ associations revealed by family studies in Warao Amerindians. Haplotype and homozygosity frequenciesHuman Immunology, 1988
- HLA antigens in Tükuna IndiansAmerican Journal of Physical Anthropology, 1981
- Distribution of HLA Antigens in Ticuna Indians of Brazil: Results of Typing a Leprosy‐Affected FamilyTissue Antigens, 1980