South American Amerindian diversity at vWA STR locus

CATANESI C.I., TOURRET N., CARNESE F.R., VIDAL-RIO; VIDAL RIOJA, LIDIA BEATRIZ ARBELETCHE

Basic and Applied Genetics

Sociedad Argentina de Genetica

Lugar: La Plata, Buenos Aires; Año: 2006 vol. 17 p. 35 - 40

1666-0390

ABSTRACT The high variability of vWA microsatellite marker makes it a useful tool in genetic population studies. We screened this marker in three Amerindian South American populations from Gran Chaco region, and compared them with one Argentinian Caucasian sample, and data on three previously reported Amerindian samples. The obtained results showed differences in allele frequency distributions and heterozygosities. Our main findings suggest the different influence of genetic drift and gene flow in native populations, depending on their geographic and linguistic origins. Genetic drift appeared to be the most important factor driving the evolution of populations from Paraguay and North East Argentina, in the Gran Chaco region. On the other hand, gene flow might have been of importance in populations from southern Argentina (Patagonia). marker in three Amerindian South American populations from Gran Chaco region, and compared them with one Argentinian Caucasian sample, and data on three previously reported Amerindian samples. The obtained results showed differences in allele frequency distributions and heterozygosities. Our main findings suggest the different influence of genetic drift and gene flow in native populations, depending on their geographic and linguistic origins. Genetic drift appeared to be the most important factor driving the evolution of populations from Paraguay and North East Argentina, in the Gran Chaco region. On the other hand, gene flow might have been of importance in populations from southern Argentina (Patagonia). marker in three Amerindian South American populations from Gran Chaco region, and compared them with one Argentinian Caucasian sample, and data on three previously reported Amerindian samples. The obtained results showed differences in allele frequency distributions and heterozygosities. Our main findings suggest the different influence of genetic drift and gene flow in native populations, depending on their geographic and linguistic origins. Genetic drift appeared to be the most important factor driving the evolution of populations from Paraguay and North East Argentina, in the Gran Chaco region. On the other hand, gene flow might have been of importance in populations from southern Argentina (Patagonia). marker in three Amerindian South American populations from Gran Chaco region, and compared them with one Argentinian Caucasian sample, and data on three previously reported Amerindian samples. The obtained results showed differences in allele frequency distributions and heterozygosities. Our main findings suggest the different influence of genetic drift and gene flow in native populations, depending on their geographic and linguistic origins. Genetic drift appeared to be the most important factor driving the evolution of populations from Paraguay and North East Argentina, in the Gran Chaco region. On the other hand, gene flow might have been of importance in populations from southern Argentina (Patagonia). marker in three Amerindian South American populations from Gran Chaco region, and compared them with one Argentinian Caucasian sample, and data on three previously reported Amerindian samples. The obtained results showed differences in allele frequency distributions and heterozygosities. Our main findings suggest the different influence of genetic drift and gene flow in native populations, depending on their geographic and linguistic origins. Genetic drift appeared to be the most important factor driving the evolution of populations from Paraguay and North East Argentina, in the Gran Chaco region. On the other hand, gene flow might have been of importance in populations from southern Argentina (Patagonia). vWA microsatellite marker makes it a useful tool in genetic population studies. We screened this marker in three Amerindian South American populations from Gran Chaco region, and compared them with one Argentinian Caucasian sample, and data on three previously reported Amerindian samples. The obtained results showed differences in allele frequency distributions and heterozygosities. Our main findings suggest the different influence of genetic drift and gene flow in native populations, depending on their geographic and linguistic origins. Genetic drift appeared to be the most important factor driving the evolution of populations from Paraguay and North East Argentina, in the Gran Chaco region. On the other hand, gene flow might have been of importance in populations from southern Argentina (Patagonia). Key words: South America, Amerindians, genetic diversity, autosomal STR, vWA.: South America, Amerindians, genetic diversity, autosomal STR, vWA.