  The technological advances in Genetics have given rise to the science of
Molecular Genealogy, by giving us the opportunity to approach the study of
pedigrees from a new perspective, examining alive people at the same time than
collating records from their ancestors. A four generations matrilineal
genealogy is presented from Da. Angela Antunez (b. a. 1881 in Barcelona, Spain)
to their descendants in Cuba and Costa Rica. The observed mitochondrial lineage
has a substitution in the region HVR1 respect to the reference sequence (CRS)
and belongs to H haplogroup. This is consistent -as expected, with the recent
documented European lineage. This is an example of differential female
migration, in which women move to the husband's place of origin. Because of
patrilocal marriages are practiced in most societies, such migration mechanism
has had a major impact since the arrival of immigrant women bring new and
different lineages of mtDNA, which together with the admixture process
contributed to enrich the diversity and regionalization of the gene pool of
human populations in the Americas.
