Abstract
Portugal has been considered a country of emigrants, nevertheless in the past decades
the number of immigrants has grown throughout all the country. This migratory flux
has contributed to a raise of heterogeneity at multiple levels. According to statistical
data, at the end of 2012 the total number of Angolan immigrants in Portugal equalled
about 20,000 individuals. A territorial predominance has been found for the metropolitan
region of Lisboa. Angola is a country located in the Atlantic coast of Africa. The
presence of Bantu people and the colonisation by Portuguese people on Angolan territory
are considered to be the major modulators of the genetic patterns in Angola.
Mitochondrial DNA is known for its features that enable an approach to the study of
human origin and evolution, as well to the different migration pathways of populations.
This genetic marker can also contribute to ascertaining the identity of individuals
in forensic cases. The main aim of this study was to determine the genetic structure
of the Angolan immigrant population living in Lisboa. Therefore, a total of 173 individuals,
inhabitants in Lisboa, nonrelated and with Angolan ancestry were studied. Total control
region of mitochondrial DNA was amplified from position 16,024 to position 576 using
two pairs of primers – L15997/H016 and L16555/H639.
The majority of the identified haplotypes belong to mtDNA lineages known to be specific
of the sub-Saharan region. Our results show that this immigrant population inhabitant
in Lisboa presents a genetic profile that is characteristic of African populations.
This study also demonstrates the genetic diversity that this immigrant population
introduces in Lisboa. This does not contradict the historical data concerning colonization
of Angola, since this was made mainly by male European individuals, who did not contribute
with their maternal information of mtDNA.
Lisboa immigrant population from Angola can be accessed via EMPOP dataset with accession
number EMPOP662.
Keywords
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Article info
Publication history
Published online: September 25, 2014
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© 2014 Elsevier Ireland Ltd. Published by Elsevier Inc. All rights reserved.
