Amorim, AntónioRibeiro, JoanaProença de Campos, M.Vieira-Silva, CláudiaBogas, VanessaRibeiro, TeresaPorto, Maria JoãoAfonso Costa, HeloisaAfonso Costa, Heloísa2025-10-032025-10-032017http://hdl.handle.net/10400.26/58882Guiné-Bissau, officially known as the Republic of Guiné-Bissau, is a country on the west coast of the African Continent. Colonized in the nineteenth century, Guiné-Bissau was the first Portuguese colony in Africa with independence recognized by Portugal. Before the arrival of Europeans and until the seventeenth century, almost all of the territory of Guiné-Bissau was part of the Kingdom of Gabu, part of the Mali Empire. In the late seventies, migration flows, related to the post-colonial phase, led to Guinean community became the sixth largest immigrant community in Portugal. Most of those immigrants are based in Lisboa metropolitan region. Those individuals have contributed to increased heterogeneity in social, cultural, religious, linguistic and anthropological frame in Portugal. In recent decades the mtDNA became an important genetic marker in human population studies as well as in forensic studies. The interest in the analysis of mtDNA is explained by the characteristics of the molecule, as high copy number per cell in the same individual, maternal inheritance, absence of recombination and high mutation rate. Therefore, unlike nuclear DNA, mtDNA does not get shuffled every generation, so it is presumed to change at a slower rate, which is useful for the study of human evolution. The main goal of our study was to determine the haplotypes and respective haplogroups of Guineans individuals living in Lisboa, to be possible to obtain the mtDNA genetic structure of the population under study and evaluate the impact of immigrant individuals in the Lisboa region.engGuiné-BissauMitochondrial DNAImmigrant populationLisbonconference poster