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    Y-chromosome lineages from Portugal, Madeira and Acores record elements of Sephardim and Berber ancestry


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    Reference Type: Journal Article

    Record Number: 46

    Author: R. Goncalves, A. Freitas, M. Branco, A. Rosa, A. T. Fernandes, L. A. Zhivotovsky, P. A. Underhill, T. Kivisild and A. Brehm

    Year: 2005

    Title: Y-chromosome lineages from Portugal, Madeira and Acores record elements of Sephardim and Berber ancestry

    Journal: Ann Hum Genet

    Volume: 69

    Issue: Pt 4

    Pages: 443-54

    Epub Date: 2005/07/06

    Date: Jul

    Short Title: Y-chromosome lineages from Portugal, Madeira and Acores record elements of Sephardim and Berber ancestry

    ISSN: 0003-4800 (Print)

    DOI: AHG161 [pii], 10.1111/j.1529-8817.2005.00161.x,

    Accession Number: 15996172

    Keywords: Africa South of the Sahara, Africa, Northern, Chromosomes, Human, Y/*genetics, Evolution, Molecular, Genetics, Population, Haplotypes, Humans, Male, Portugal, Principal Component Analysis, Tandem Repeat Sequences,

    Abstract: A total of 553 Y-chromosomes were analyzed from mainland Portugal and the North Atlantic Archipelagos of Acores and Madeira, in order to characterize the genetic composition of their male gene pool. A large majority (78-83% of each population) of the male lineages could be classified as belonging to three basic Y chromosomal haplogroups, R1b, J, and E3b. While R1b, accounting for more than half of the lineages in any of the Portuguese sub-populations, is a characteristic marker of many different West European populations, haplogroups J and E3b consist of lineages that are typical of the circum-Mediterranean region or even East Africa. The highly diverse haplogroup E3b in Portuguese likely combines sub-clades of distinct origins. The present composition of the Y chromosomes in Portugal in this haplogroup likely reflects a pre-Arab component shared with North African populations or testifies, at least in part, to the influence of Sephardic Jews. In contrast to the marginally low sub-Saharan African Y chromosome component in Portuguese, such lineages have been detected at a moderately high frequency in our previous survey of mtDNA from the same samples, indicating the presence of sex-related gene flow, most likely mediated by the Atlantic slave trade.

    Notes: Goncalves, Rita, Freitas, Ana, Branco, Marta, Rosa, Alexandra, Fernandes, Ana T, Zhivotovsky, Lev A, Underhill, Peter A, Kivisild, Toomas, Brehm, Antonio, Research Support, Non-U.S. Gov't, England, Annals of human genetics, Ann Hum Genet. 2005 Jul;69(Pt 4):443-54.,

    Author Address: Human Genetics Laboratory, University of Madeira, Campus of Penteada, 9000-390 Funchal, Portugal.

    Language: eng