Amel Ben Ammar El Gaaied

TL;DR: It is shown that the post-Last Glacial Maximum period of the past 20,000 years has been a significant time in the formation of the extant genetic composition and population structure of this region.

TL;DR: It is found that 46% of 81 Tunisian H lineages subscreened for 1,580 bp in mtDNA coding region were affiliated with H1 and H3 subhaplogroups, which are known to have originated in Iberia.

TL;DR: This study describes and compares the female gene pools of two neighboring Tunisian populations, Kesra (Berber) and Zriba (non-Berber), which have contrasting historical backgrounds and reveals that the emerging picture is complex, because ZribA would match the profile of a Berber Moroccan population, whereas Kesra, which shows twice the frequency of sub-Saharan lineages normally observed in northern coastal populations, would match a western Saharan population except for the low U6 frequency.

TL;DR: It does not seem that centenarians have significantly less mildly deleterious substitutions, not only in Tunisia but also in Japanese and UK/US samples, as tested here, not favouring a "golden mean" to longevity.

TL;DR: Detailed phylogeography of HV1 sequences shows that more recent demographic upheavals likely contributed to their spread from West Arabia to East Africa, a finding concordant with archaeological records suggesting intensive maritime trade in the Red Sea from the sixth millennium BC onwards.