M. Capocasa, C. Battaggia, E. Cancellieri, A. Lisi, Nouri Boukhchim, G. Bisol, S. di Lernia, P. Anagnostou
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Mitochondrial DNA Variation in Southern Tunisian Populations
Due to its complex history of migrations and colonization of African, European, and Asian people, the
Tunisian territory is an ideal area to study the effects of cultural change on the genetic structure of
human populations. This study investigated genetic variation in the mitochondrial DNA of Tunisian
populations to detect the possible impact of recent historical events on their gene pool. Two Arab and
three Berber communities were analyzed using a comparison data set of 45 other populations comprising
African, Arabian, Asian, European, and Near Eastern groups. Results were compared with those produced
using a large panel of autosomal single-nucleotide polymorphisms. We observed a slight but important
difference between the populations that inhabit the southern and central-northern areas of Tunisia.
Furthermore, robust signatures of genetic isolation were detected in two Berber populations (Nouvelle
Zraoua and Tamezret) and in the R’Baya people, a seminomadic Arab group. This investigation suggests
that the genetic structure of investigated southern Tunisian populations retains signatures of historical
events that occurred between the 7th and 17th centuries, particularly the trans-Saharan slave trade and
the emigration of Berbers in remote areas of the south during the Arab conquest.
期刊介绍:
Human Biology publishes original scientific articles, brief communications, letters to the editor, and review articles on the general topic of biological anthropology. Our main focus is understanding human biological variation and human evolution through a broad range of approaches.
We encourage investigators to submit any study on human biological diversity presented from an evolutionary or adaptive perspective. Priority will be given to interdisciplinary studies that seek to better explain the interaction between cultural processes and biological processes in our evolution. Methodological papers are also encouraged. Any computational approach intended to summarize cultural variation is encouraged. Studies that are essentially descriptive or concern only a limited geographic area are acceptable only when they have a wider relevance to understanding human biological variation.
Manuscripts may cover any of the following disciplines, once the anthropological focus is apparent: human population genetics, evolutionary and genetic demography, quantitative genetics, evolutionary biology, ancient DNA studies, biological diversity interpreted in terms of adaptation (biometry, physical anthropology), and interdisciplinary research linking biological and cultural diversity (inferred from linguistic variability, ethnological diversity, archaeological evidence, etc.).