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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
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 …