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Full-Text Articles in Biological and Physical Anthropology

Afghan Genetic Mysteries, Bernard Dupaigne Dec 2011

Afghan Genetic Mysteries, Bernard Dupaigne

Human Biology Open Access Pre-Prints

Letter To The Editor


Afro-Derived Amazonian Populations: Inferring Continental Ancestry And Population Substructure, Luana Gomes Lopes Maciel, Elzemar Martins Ribeiro-Rodrigues, Ney Pereira Cameiro Dos Santos, Ândrea K. C. Ribeiro Dos Santos, João Farias Guerreiro, Sidney Emanuel Batista Dos Santos Oct 2011

Afro-Derived Amazonian Populations: Inferring Continental Ancestry And Population Substructure, Luana Gomes Lopes Maciel, Elzemar Martins Ribeiro-Rodrigues, Ney Pereira Cameiro Dos Santos, Ândrea K. C. Ribeiro Dos Santos, João Farias Guerreiro, Sidney Emanuel Batista Dos Santos

Human Biology Open Access Pre-Prints

A panel of Ancestry Informative Markers (AIMs) was used to identify population substructure and estimate individual and overall interethnic admixture in 294 individuals from seven African-derived communities of the Brazilian Amazon. A panel of 48 biallelic markers, representing the insertion (IN) or the deletion (DEL) of small DNA fragments, was employed for this purpose. Overall interethnic admixture estimates showed high miscegenation with other ethnic groups in all populations (between 46% and 64%). The proportion of ancestral genes varied significantly among individuals of the sample: the contribution of African genes varied between 12% and 75%; of European genes between 10% and …


Human Alu Insertion Polymorphisms In North African Populations, Lotfi Cherni, Sabeh Frigi, Hajer Ennafaa, Nabil Mtiraoui, Touhami Mahjoub, Amel Benammar-Elgaaied Oct 2011

Human Alu Insertion Polymorphisms In North African Populations, Lotfi Cherni, Sabeh Frigi, Hajer Ennafaa, Nabil Mtiraoui, Touhami Mahjoub, Amel Benammar-Elgaaied

Human Biology Open Access Pre-Prints

Several features make Alu insertions a powerful tool used in population genetic studies: the polymorphic nature of many Alu insertions, the stability of an Alu insertion event and, furthermore, the ancestral state of an Alu insertion is known to be the absence of the Alu element at a particular locus and the presence of an Alu insertion at the site that forward mutational change. This study analyses seven Alu insertion polymorphisms in a sample of 297 individuals from the autochthonous population of Tunisia (Thala, Smar, Zarzis and Bou Salem) and Libya with the aim of studying their genetic structure with …


Depicting Simultaneously Similarity, Diversity, Ancestry, And Admixture?, Peter J. Taylor Apr 2011

Depicting Simultaneously Similarity, Diversity, Ancestry, And Admixture?, Peter J. Taylor

Working Papers on Science in a Changing World

Can any depiction of genetic relationships among humans allow simultaneously for similarity, diversity, ancestry, and admixture (i.e., groups that had split mixing again)? I asked this question while puzzling over the messages conveyed by diagrams from the work of Tishkoff and collaborators on genetic variation among humans in and out of Africa. In this talk I present explorations of alternative depictions of human genetic variation keeping my initial question in mind. By the end I will have prepared the ground for an assertion that the very methodology of generating and depicting human ancestry privileges a racialized view of human diversity.