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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Joining the pillars of hercules: mtDNA sequences show multidirectional gene flow in the Western Mediterranean
Annals of Human Genetics, Volume 67, No. 4, Year 2003
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Description
Phylogenetic analysis of mitochondrial DNA (mtDNA) performed in Western Mediterranean populations has shown that both shores share a common set of mtDNA haplogroups already found in Europe and the Middle East. Principal co-ordinates of genetic distances and principal components analyses based on the haplotype frequencies show that the main genetic difference is attributed to the higher frequency of sub-Saharan L haplogroups in NW Africa, showing some gene flow across the Sahara desert, with a major impact in the southern populations of NW Africa. The AMOVA demonstrates that SW European populations are highly homogeneous whereas NW African populations display a more heterogeneous genetic pattern, due to an east-west differentiation as a result of gene flow coming from the East. Despite the shared haplogroups found in both areas, the European V and the NW African U6 haplogroups reveal the traces of the Mediterranean Sea permeability to female migrations, and allowed for determination and quantification of the genetic contribution of both shores to the genetic landscape of the geographic area. Comparison of mtDNA data with autosomal markers and Y-chromosome lineages, analysed in the same populations, shows a congruent pattern, although female-mediated gene flow seems to have been more intense than male-mediated gene flow. © University College London 2003.
Authors & Co-Authors
Plaza, Stéphanie
Spain, Barcelona
Universitat Pompeu Fabra Barcelona
Calafell, Francesc
Spain, Barcelona
Universitat Pompeu Fabra Barcelona
Helal, Ahmed Nourredhine
Tunisia, Monastir
Faculté de Pharmacie de Monastir
Bouzerna, Noureddine
Algeria, Annaba
Université Badji Mokhtar - Annaba
Lefranc, Gérard
France, Montpellier
Igh Institut de Génétique Humaine
Bertranpetit, Jaume
Spain, Barcelona
Universitat Pompeu Fabra Barcelona
Comas, D.
Spain, Barcelona
Universitat Pompeu Fabra Barcelona
Statistics
Citations: 143
Authors: 7
Affiliations: 4
Identifiers
Doi:
10.1046/j.1469-1809.2003.00039.x
Research Areas
Genetics And Genomics
Participants Gender
Male
Female