Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/8081
Title: Pattern of mtDNA Variation in Three Populations from São Tomé e Príncipe
Authors: Trovoada, M. J. 
Pereira, L. 
Gusmão, L. 
Abade, A. 
Amorim, A. 
Prata, M. J. 
Issue Date: 2004
Issue Date: 2004
Citation: Annals of Human Genetics. 68:1 (2004) 40-54
Abstract: We have analysed the matrilineal genetic composition of three self-reported ethnic groups from São Tomé e Príncipe (Gulf of Guinea), an African archipelago whose settlement begun in the late fifteenth century. Sequence data from the hypervariable segments I (HVS-I) and II (HVS-II) were obtained for 30 Angolares, 35 Forros and 38 Tongas. The repertory of mtDNA lineages in São Tomé e Príncipe denoted a fully African maternal pool, primarily arisen from a Central/Southwestern substratum. The absence of any lineages of putative European descent means that the European impact at the mitochondrial pool was virtually nil. Angolares showed a clear reduction of mtDNA diversity and a slight genetic differentiation relative to Tongas or Forros, whereas the latter two groups did not present any signs of genetic boundaries between each other. The data obtained here reinforce the depiction of genetic substructuring in São Tomé e Príncipe previously derived from Y-chromosome STRs. In addition, the crossing of mtDNA and Y-STR information led to the inference that the female mediated gene flow within the archipelago was less restricted than the male, a pattern that could be framed in the cultural traditions and socio-historical interactions among the groups.
URI: http://hdl.handle.net/10316/8081
DOI: 10.1046/j.1529-8817.2003.00070.x
Rights: openAccess
Appears in Collections:I&D CIAS - Artigos em Revistas Internacionais
FCTUC Ciências da Vida - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
obra.pdf208.78 kBAdobe PDFView/Open
Show full item record

Page view(s)

83
checked on Aug 21, 2019

Download(s)

140
checked on Aug 21, 2019

Google ScholarTM

Check

Altmetric

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.