Genetic portrait of Lisboa immigrant population from Mozambique

Proença de Campos, M.; Afonso Costa, Heloísa; Vieira-Silva, C.; Ribeiro, Teresa; Amorim, António

http://hdl.handle.net/10400.26/58865

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Authors

Proença de Campos, M.

Afonso Costa, Heloísa

Vieira-Silva, C.

Ribeiro, Teresa

Amorim, António

Abstract(s)

Since the end of the 1970s, Portugal had a role in the migratory movements, becoming a destiny for immigrants from a wide range of nationalities, especially from the African continent. According to statistical data, until the end of 2014, there were approximately 99 000 African immigrants living in Portugal. The Mozambican community is about 3 000 individuals, of which more than a half are currently living in Lisbon metropolitan region [1]. Mitochondrial DNA (mtDNA) is a useful tool, not only in evolutionary and population studies, but also in forensic genetics. Due to its unique features, including maternal inheritance, lack of recombination, high copy number and high mutation rate, mtDNA has been used to measure the genetic impact of human migration and also for human identity testing [2,3]. The analysis of mtDNA allows to trace the ancestral origin of each population, revealing the evolutionary history of maternal lineages across several generations. The aim of our study is the genetic characterization of Mozambican immigrants living in Lisbon, in order to emphasize their genetic contribution to Lisbon population. We also pretend to classify haplotypes into haplogroups and to compare this population with other African populations.