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Analysis of paternal lineages in Brazilian and African populations

Carvalho,Mónica; Brito,Pedro; Lopes,Virgínia; Andrade,Lisa; Anjos,Mª João; Real,Francisco Corte; Gusmão,Leonor

The present-day Brazilian population is a consequence of the admixture of various peoples of very different origins, namely, Amerindians, Europeans and Africans. The proportion of each genetic contribution is known to be very heterogeneous throughout the country. The aim of the present study was to compare the male lineages present in two distinct Brazilian populations, as well as to evaluate the African contri...

Data: 2010 | Origem: OASIS br

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Population and mutation analysis of Y-STR loci in a sample from the city of São...

Soares-Vieira,José A.; Billerbeck,Ana E.C.; Iwamura,Edna S.M.; Mendonca,Berenice B.; Gusmão,Leonor; Otto,Paulo A.

The haplotypes of seven Y-chromosome STR loci (DYS19, DYS389I, DYS389II, DYS390, DYS391, DYS392, and DYS393) were determined in a sample of 634 healthy Brazilian males (190 adult individuals and 222 father-son pairs). The 412 adults were unrelated, and the 222 father-son pairs had their biological relationship confirmed using autosomal STRs (LR > 10,000). Among the 412 adults, a total of 264 different 7-loci ha...

Data: 2008 | Origem: OASIS br

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Y-STR haplotype diversity in distinct linguistic groups from East Timor

Souto, Luís; Gusmão, Leonor; Amorim, António; Côrte-Real, Francisco; Vieira, Duarte N.

East Timor is a country which harbors multiple ethnolinguistic groups generally assigned to an Austronesian or Papuan ancestry. The present study aimed to characterize Y-chromosome haplotype diversity in East Timor, and to test possible population structures based on linguistic and/or geographical information. Using a set of 12 Y-chromosome-specific STRs (DYS19, DYS389I and II, DYS390, DYS391, DYS392, DYS393, D...

Data: 2006 | Origem: Estudo Geral - Universidade de Coimbra

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Insights from pattern of mtDNA variation into the genetic history of São Tomé e...

Trovoada, Maria Jesus; Pereira, Luísa; Gusmão, Leonor; Abade, Augusto; Amorim, António; Prata, Maria João

Sequence data from the hypervariable segments I (HVS-I) and II (HVS-II) was obtained for 30 Angolares, 35 Forros and 38 Tongas, three self-reported ethnic groups from São Tomé e Príncipe, an African archipelago (Gulf of Guinea) whose settlement begun in the late 15th century. The repertory of mtDNA lineages denoted a fully African maternal pool primarily arisen from a Central/Southwestern substratum. The absenc...

Data: 2004 | Origem: Estudo Geral - Universidade de Coimbra

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