INVESTIGADORES
BAILLIET Graciela
artículos
Título:
Origin of paternal lineages in an admixed population of Northern
Autor/es:
ALTUNA ME; GARCÍA A; RAMALLO V; BAILLIET G; MODESTI NM; DEMARCHI DA
Revista:
Forensic Science International: Genetics Supplement Series
Editorial:
ELSEVIER IRELAND LTD
Referencias:
Lugar: Ireland; Año: 2009 vol. 2 p. 451 - 452
ISSN:
1875-1768
Resumen:
The development of the molecular biology techniques has made possible the study of the genetic
background of American populations where a substantial contribution of the aboriginal component
exists, but its individuals had lost the ethnic identity because of dramatic historical, cultural and social
changes. The aim of the present work was to investigate the origin of the paternal lineages present in La
Esperanza (Jujuy, Argentina), a population originated at the end of XVIII century as a consequence of the
installation of a sugar plantation.
DNA of 37 non-related males was purified from buccal swabs and subjected to STR PCR amplification
of 11 Y chromosome loci using a commercial kit. In addition, 4 binary markers commonly used in
diagnosis of ethnic origin (DYS199, M89, M207, and M173) were characterized by RFLP-PCR.
From the 37 individuals analyzed, 34 different STRs based haplotypes were observed, 31 of them
being unique, which shows the high heterogeneity of the genetic composition of the population. A search
in the Y-Haplotype Chromosome Reference Database allowed to identify 11 Amerindian, 14 European, 2
Arabs and 2 Africans haplotypes. The 8 remaining haplotypes were not possible to assign unequivocally.
On the other hand, the analysis of binary markers permits to include all the individuals analyzed (29) into
a known haplogroup: 17 individuals carry the haplogroup Q1a3a (Amerindian), 9 the R1 (European), 1
the R (European) and 2 F (Eurasian). We conclude that the STRs and binary markers should be used
jointly to get more accurate information about the ethnic origin and genetic diversity of human
populations.