Abstract:
:An analysis of 11 I Alu insertion polymorphisms (ACE, TPA25, PV92, APO, FXIIIB, D1, A25, B65, HS2.43, HS3.23, and HS4.65) has been performed in several NW African (Northern, Western, and Southeastern Moroccans, Saharawi; Algerians; Tunisians) and Iberian (Basques, Catalans, and Andalusians) populations. Genetic distances and principal component analyses show a clear differentiation of NW African and Iberian groups of samples, suggesting a strong genetic barrier matching the geographical Mediterranean Sea barrier. The restriction to gene flow may be attributed to the navigational hazards across the Straits, but cultural factors must also have played a role. Some degree of gene flow from sub-Saharan Africa can be detected in the southern part of North Africa and in Saharawi and Southeastern Moroccans, as a result of a continuous gene flow across the Sahara desert that has created a south-north cline of sub-Saharan Africa influence in North Africa. Iberian samples show a substantial degree of homogeneity and fall within the cluster of European-based genetic diversity.
journal_name
Hum Genetjournal_title
Human geneticsauthors
Comas D,Calafell F,Benchemsi N,Helal A,Lefranc G,Stoneking M,Batzer MA,Bertranpetit J,Sajantila Adoi
10.1007/s004390000370keywords:
subject
Has Abstractpub_date
2000-10-01 00:00:00pages
312-9issue
4eissn
0340-6717issn
1432-1203journal_volume
107pub_type
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