TY - JOUR
T1 - Directional mating and a rapid male population expansion in a hybrid Uruguayan population
AU - Bertoni, Bernardo
AU - Jin, Li
AU - Chakraborty, Ranajit
AU - Sans, Mónica
PY - 2005/11/1
Y1 - 2005/11/1
N2 - The Uruguayan population has been considered as mainly European descent, with a negligible Native American or African contributions. Based on serological and molecular markers, recent studies demonstrate that these two populations had an important influence in the conformation of the present one. To the Northeastern region of Uruguay, a 20% Native American contribution was estimated using autosomal markers and a 62% Native American female origin based on mitochondrial markers. In this paper, we analyze four Y chromosome markers, two biallelic loci (M3 and YAP) and two microsatellites (DYS389I and DYS391), to characterize the male genetic contribution of a sample from the Northeastern city of Tacuarembó. We take different approaches to estimate the origin of male contributions to the population of Tacuarembó; Native American contribution ranges between 1.60% and 8.31%, confirming strong directional mating, which was also detected before with mitochondrial markers. Furthermore, the male population of Tacuarembó presents the characteristic of a population that suffered a bottleneck and a posterior expansion, confirmed using two microsatellite-based statistics to analyze the past population growth; patrilocality and migration could be responsible of those characteristics.
AB - The Uruguayan population has been considered as mainly European descent, with a negligible Native American or African contributions. Based on serological and molecular markers, recent studies demonstrate that these two populations had an important influence in the conformation of the present one. To the Northeastern region of Uruguay, a 20% Native American contribution was estimated using autosomal markers and a 62% Native American female origin based on mitochondrial markers. In this paper, we analyze four Y chromosome markers, two biallelic loci (M3 and YAP) and two microsatellites (DYS389I and DYS391), to characterize the male genetic contribution of a sample from the Northeastern city of Tacuarembó. We take different approaches to estimate the origin of male contributions to the population of Tacuarembó; Native American contribution ranges between 1.60% and 8.31%, confirming strong directional mating, which was also detected before with mitochondrial markers. Furthermore, the male population of Tacuarembó presents the characteristic of a population that suffered a bottleneck and a posterior expansion, confirmed using two microsatellite-based statistics to analyze the past population growth; patrilocality and migration could be responsible of those characteristics.
UR - http://www.scopus.com/inward/record.url?scp=30544443974&partnerID=8YFLogxK
U2 - 10.1002/ajhb.20443
DO - 10.1002/ajhb.20443
M3 - Article
C2 - 16254907
AN - SCOPUS:30544443974
SN - 1042-0533
VL - 17
SP - 801
EP - 808
JO - American Journal of Human Biology
JF - American Journal of Human Biology
IS - 6
ER -