title: Distribution of a 9.1-kb insertion-deletion polymorphism among native and admixed populations from Argentina.
abstract: We studied five population samples from Argentina, four drawn from Native American groups of the northeast region (Wichí, Pilagá, Toba, and Mbyá-Guaraní) and one from two small villages of the Córdoba province. In this study we report genotypes and allele frequencies of the 9.1-kb insertion-deletion polymorphism located on chromosome 22. The frequency of the deletion allele ranges from 0.276 in the Mbyá-Guaraní to 0.470 in the Pilagá. The coefficient of population differentiation is fairly low (F(ST) = 0.013), does not reflect any geographic or linguistic pattern, and seems to be more related to stochastic processes than to directional forces.
authors.affiliation: Museo de Antropología, Facultad de Filosofía y Humanidades, Universidad Nacional de Córdoba, Hipólito Yrigoyen 174, Córdoba 5000, Argentina.
authors.forename: Darío A
authors.initials: DA
authors.lastname: Demarchi
authors.forename: Angelina
authors.initials: A
authors.lastname: García
authors.forename: María Eugenia
authors.initials: ME
authors.lastname: Altuna
mesh_terms: D000483:Alleles; D001118:Argentina; D002892:Chromosomes, Human, Pair 22 / Q000235:genetics*; D017353:Gene Deletion; D005787:Gene Frequency; D014644:Genetic Variation; D005828:Genetics, Population; D005838:Genotype; D006801:Humans; D007199:Indians, South American / Q000235:genetics* / Q000706:statistics & numerical data; D011110:Polymorphism, Genetic / Q000235:genetics*; D013269:Stochastic Processes; D044465:White People / Q000235:genetics