• Login
     
    View Item 
    •   ORFEO Home
    • Royal Museum for Central Africa
    • RMCA publications
    • View Item
    •   ORFEO Home
    • Royal Museum for Central Africa
    • RMCA publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Y-chromosomal variation in Sub-Saharan Africa: insights into the history of Niger-Congo groups

    Authors
    de Filippo , C.
    Barbieri , C.
    Whitten, M.
    Bostoen, K.
    Nyambe, T.
    Mpoloka, S.M.
    Beyer, K.
    Schreiber, H.
    de Knijf, P.
    Luiselli, D.
    Stoneking, M.
    Pakendorf, B.
    Gunnarsdóttir, E.D.
    Show allShow less
    Discipline
    Sociology
    Subject
    Culture & Society
    Audience
    Scientific
    Date
    2011
    Metadata
    Show full item record
    Description
    Technological and cultural innovations, as well as climate changes, are thought to have influenced the diffusion of major language phyla in sub-Saharan Africa. The most widespread and the richest in diversity is the Niger-Congo phylum, thought to have originated in West Africa ∼10,000 years ago. The expansion of Bantu languages (a family within the Niger-Congo phylum) ∼5,000 years ago represents a major event in the past demography of the continent. Many previous studies on Y chromosomal variation in Africa associated the Bantu expansion with haplogroup E1b1a (and sometimes its sub-lineage E1b1a7). However, the distribution of these two lineages extends far beyond the area occupied nowadays by Bantu speaking people, raising questions on the actual genetic structure behind this expansion. To address these issues, we directly genotyped 31 biallelic markers and 12 microsatellites on the Y chromosome in 1195 individuals of African ancestry focusing on areas that were previously poorly characterized (Botswana, Burkina Faso, D.R.C, and Zambia). With the inclusion of published data, we analyzed 2736 individuals from 26 groups representing all linguistic phyla and covering a large portion of Sub-Saharan Africa. Within the Niger-Congo phylum, we ascertain for the first time differences in haplogroup composition between Bantu and non-Bantu groups via two markers (U174 and U175) on the background of haplogroup E1b1a (and E1b1a7), which were directly genotyped in our samples and for which genotypes were inferred from published data using Linear Discriminant Analysis on STR haplotypes. No reduction in STR diversity levels was found across the Bantu groups, suggesting the absence of serial founder effects. In addition, the homogeneity of haplogroup composition and pattern of haplotype sharing between Western and Eastern Bantu groups suggest that their expansion throughout Sub-Saharan Africa reflects a rapid spread followed by backward and forward migrations. Overall, we found that linguistic affiliations played a notable role in shaping sub-Saharan African Y chromosomal diversity, although the impact of geography is clearly discernible.
    Citation
    de Filippo , C.; Barbieri , C.; Whitten, M.; Bostoen, K.; Nyambe, T.; Mpoloka, S.M.; Beyer, K.; Schreiber, H.; de Knijf, P.; Luiselli, D.; Stoneking, M.; Pakendorf, B.; Gunnarsdóttir, E.D. (2011). Y-chromosomal variation in Sub-Saharan Africa: insights into the history of Niger-Congo groups. , Molecular Biology and Evolution, Vol. 28 (3), 1255 1269, DOI: 10.1093/molbev/msq312.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/1104
    doi: http://dx.doi.org/10.1093/molbev/msq312
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
    NewsHelpdeskBELSPO OA Policy

    Browse

    All of ORFEOCommunities & CollectionsBy Issue DateAuthorsTitlesDisciplinesThis CollectionBy Issue DateAuthorsTitlesDisciplines
     

    DSpace software copyright © 2002-2016  DuraSpace
    Send Feedback | Cookie Information
    Theme by 
    Atmire NV