Insights into the Middle Eastern paternal genetic pool in Tunisia: high prevalence of T-M70 haplogroup in an Arab population

• Type: Article in International Scientific Journal
• Date: 2021

Authors

Elkamel, S (Author) Other; Marques, SL (Author) Other; Alvarez, L (Author) Other; Gomes, V (Author) Other; Boussetta, S (Author) Other; Mourali Chebil, S (Author) Other; Khodjet El Khil, H (Author) Other; Cherni, L (Author) Other; Benammar Elgaaied, A (Author) Other; Prata, MJ (Author) FCUP

Journal

Title: Scientific Reports

Vol. 11

ISSN: 2045-2322

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 1 Citation

Other information

Authenticus ID: P-00V-9QJ

DOI: 10.1038/s41598-021-95144-x

Abstract (EN): To obtain refreshed insights into the paternal lineages of Tunisian populations, Y-chromosome diversity was assessed in two populations belonging to an Arab genealogical lineage, Kairouan and Wesletia, as well as in four Tunisian Andalusian populations, Testour, Slouguia, Qalaat-El-Andalous and El Alia. The Arabs from Kairouan revealed 73.47% of E-M81 and close affinities with Berber groups, indicating they are likely arabized Berbers, clearly differentiated from the Arabs from Wesletia, who harbored the highest frequency (71.8%) of the Middle Eastern component ever observed in North Africa. In the Tunisian Andalusians, the North African component largely prevailed, followed by the Middle Eastern contribution. Global comparative analysis highlighted the heterogeneity of Tunisian populations, among which, as a whole, dominated a set of lineages ascribed to be of autochthonous Berber origin (71.67%), beside a component of essentially Middle Eastern extraction (18.35%), and signatures of Sub-Saharan (5.2%), European (3.45%) and Asiatic (1.33%) contributions. The remarkable frequency of T-M70 in Wesletia (17.4%) prompted to refine its phylogeographic analysis, allowing to confirm its Middle Eastern origin, though signs of local evolution in Northern Africa were also detected. Evidence was clear on the ancient introduction of T lineages into the region, probably since Neolithic times associated to spread of agriculture.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12