title: D1S80 locus variability in South American Indians.
abstract: We have studied the hypervariable D1S80 locus in 185 individuals from five South American Indian tribes, integrating these results with previous investigations. Three alleles (*18, *24 and *30) were common to all tribes, but their frequencies varied between northern and southern populations. Brazilian tribes have a high frequency of *30 (average 35%) while in Argentinian and Chilean Indian populations this allele is present, on average, in 7% of the chromosomes only. Allele *24, the most common in other ethnic groups, was observed in 10% and 25% of northern and southern Amerindians respectively. Genetic distance and dendrogram analyses placed the Argentinian and Chilean tribes closer to Brazilian Caucasians, suggesting non-Indian admixture among them.
authors.affiliation: Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: M H
authors.initials: MH
authors.lastname: Hutz
authors.forename: V S
authors.initials: VS
authors.lastname: Mattevi
authors.forename: S M
authors.initials: SM
authors.lastname: Callegari-Jacques
authors.forename: F M
authors.initials: FM
authors.lastname: Salzano
authors.forename: C E
authors.initials: CE
authors.lastname: Coimbra Júnior
authors.forename: R V
authors.initials: RV
authors.lastname: Santos
authors.forename: R F
authors.initials: RF
authors.lastname: Carnese
authors.forename: A S
authors.initials: AS
authors.lastname: Goicoechea
authors.forename: C B
authors.initials: CB
authors.lastname: Dejean
mesh_terms: D000483:Alleles; D000704:Analysis of Variance; D002874:Chromosome Mapping; D005787:Gene Frequency / Q000235:genetics; D014644:Genetic Variation; D005828:Genetics, Population; D006801:Humans; D007199:Indians, South American / Q000235:genetics*; D018598:Minisatellite Repeats