North African Berber and Arab Influences in the Western Mediterranean Revealed by Y-Chromosome DNA Haplotypes

@inproceedings{Grard2006NorthAB,
  title={North African Berber and Arab Influences in the Western Mediterranean Revealed by Y-Chromosome DNA Haplotypes},
  author={Nathalie G{\'e}rard and Sala Berriche and A. Aouizerate and Florent Di{\'e}terlen and G{\'e}rard Lucotte},
  booktitle={Human biology},
  year={2006}
}
ABSTRACT We have analyzed Y-chromosome diversity in the western Mediterranean area, examining p49a,f TaqI haplotype V and subhaplotypes Vb (Berber) and Va (Arab). A total of 2,196 unrelated DNA samples, belonging to 22 populations from North Africa and the southern Mediterranean coast of occidental Europe, have been typed. Subhaplotype Vb, predominant in a Berber population of Morocco (63.5%), was also found at high frequencies in southern Portugal (35.9%) and Andalusia (25.4%). The Arab sub… 
Population relationships in the Mediterranean revealed by autosomal genetic data (Alu and Alu/STR compound systems).
TLDR
While the Alu biallelic variation underlies general heterogeneity throughout the whole Mediterranean region, the combined use of Alu and STR points to a considerable genetic differentiation between the two Mediterranean shores, presumably strengthened by a considerable sub-Saharan African genetic contribution in North Africa.
Genetic sub-structure in western Mediterranean populations revealed by 12 Y-chromosome STR loci
TLDR
Comparisons between the populations studied and other neighbouring populations showed a clear genetic sub-structure in the western Mediterranean area.
Olive domestication and diversification in the Mediterranean Basin.
TLDR
Overall the results suggest that admixture shaped olive germplasm and perhaps also local domestication events in the Mediterranean Basin are likely to have occurred.
Geographical Structure of the Y‐chromosomal Genetic Landscape of the Levant: A coastal‐inland contrast
TLDR
A coastal‐inland, east‐west pattern of diversity and frequency distribution in several haplogroups within the small region of the Levant is found, likely to have arisen mainly from differential migrations, with different lineages introduced from the east and west.
A Decreasing Gradient of 374F Allele Frequencies in the Skin Pigmentation Gene SLC45A2, from the North of West Europe to North Africa
TLDR
The results confirm that the distribution of the 374F allele may reflect the ultraviolet radiation level and can be associated with skin color variation in these regions.
Admixture and genetic relationships of Mexican Mestizos regarding Latin American and Caribbean populations based on 13 CODIS-STRs.
Pre-Hispanic Mesoamerican demography approximates the present-day ancestry of Mestizos throughout the territory of Mexico.
TLDR
STRUCTURE results and admixture estimations by means of LEADMIX software in Mestizo populations demonstrated genetic heterogeneity or asymmetric admixture throughout Mexico, displaying an increasing North-to-South gradient of Amerindian ancestry, and vice versa regarding the European component.
Characterization of Greater Middle Eastern genetic variation for enhanced disease gene discovery
TLDR
Results show variegated genetic architecture in GME populations and support future human genetic discoveries in Mendelian and population genetics.
Near Fixation of 374l Allele Frequencies of the Skin Pigmentation Gene SLC45A2 in Africa
TLDR
The highly significant (p < 0.001) correlation coefficient cline of 374f frequencies with degrees of latitude in European and North African populations is found and almost all the African populations located below 16° of latitude are fixed for the 374l allele.
...
...

References

SHOWING 1-10 OF 24 REFERENCES
Y-chromosome DNA haplotypes in north African populations.
TLDR
Examination of the relative frequencies of other haplotypes in North Africans permit useful comparisons with neighboring peoples living in sub-Saharan Africa, Europe, and the Near East.
Y-chromosome DNA haplotypes in Basques
TLDR
One Y-specific DNA polymorphism (p49/TaqI) was studied in a sample of French Basques and compared with those found in other French, Iberian, and Italian populations and confirmed that Basques are a very ancient European population which has had little previous contact with the Neolithics.
Haplotype XV of the Y-chromosome is the main haplotype in West-Europe.
Reduced genetic structure of the Iberian peninsula revealed by Y-chromosome analysis: implications for population demography
TLDR
The results indicate that neither old or recent Levantine expansions nor North African contacts have influenced the current Iberian Y-chromosome diversity so that geographical patterns can be identified.
Reduced variability in Y-chromosome-specific haplotypes for some Central African populations.
TLDR
The degree of variability displayed by these sequences is low in the African population studied, compared with Europeans, probably because of the recent common origin of the Bantu-speaking populations studied and the common practice of male polygamy in Africa.
Human genetic affinities for Y-chromosome P49a,f/TaqI haplotypes show strong correspondence with linguistics.
TLDR
Comparison of Y-chromosome and mtDNA RFLPs in a restricted set of populations shows a globally high level of congruence, but it also allows identification of unequal maternal and paternal contributions to the gene pool of several populations.
...
...