12 documents found, page 1 of 2
Insights into the Middle Eastern paternal genetic pool in Tunisia: high prevale...
Elkamel, S; Marques, SL; Alvarez, L; Gomes, V; Boussetta, S; Mourali-Chebil, S; Khodjet-El-Khil, H; Cherni, L; Benammar-Elgaaied, A; João Prata, MTo 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...
Reconciling evidence from ancient and contemporary genomes: a major source for ...
Pereira, JB; Costa, MD; Vieira, D; Pala, M; Bamford, L; Harich, N; Cherni, L; Alshamali, F; Hatina, J; Rychkov, S; Stefanescu, G; King, T; Torroni, AImportant gaps remain in our understanding of the spread of farming into Europe, due partly to apparent contradictions between studies of contemporary genetic variation and ancient DNA. It seems clear that farming was introduced into central, northern, and eastern Europe from the south by pioneer colonization. It is often argued that these dispersals originated in the Near East, where the potential source genet...
The Arabian cradle: Mitochondrial relicts of the first steps along the southern...
Fernandes, V; Alshamali, F; Alves, M; Costa, MD; Pereira, JB; Silva, NM; Cherni, L; Harich, N; Cerny, V; Soares, P; Richards, MB; Pereira, LA major unanswered question regarding the dispersal of modern humans around the world concerns the geographical site of the first human steps outside of Africa. The "southern coastal route" model predicts that the early stages of the dispersal took place when people crossed the Red Sea to southern Arabia, but genetic evidence has hitherto been tenuous. We have addressed this question by analyzing the three mino...
Internal diversification of mitochondrial haplogroup R0a reveals post-Last Glac...
Cerny, V; Mulligan, CJ; Fernandes, V; Silva, NM; Alshamali, F; Non, A; Harich, N; Cherni, L; El Gaaied, ABA; Al-Meeri, A; Pereira, LWidespread interest in the first successful Out of Africa dispersal of modern humans ∼60-80 thousand years ago via a southern migration route has overshadowed the study of later periods of South Arabian prehistory. In this work, we show that the post-Last Glacial Maximum period of the past 20,000 years, during which climatic conditions were becoming more hospitable, has been a significant time in the formation ...
Population history of the Red Sea–genetic exchanges between the Arabian Peninsu...
Musilová, E; Fernandes, V; Silva, NM; Soares, P; Alshamali, F; Harich, N; Cherni, L; El Gaaied, ABA; Al-Meeri, A; Pereira, L; Cerny, VArchaeological studies have revealed cultural connections between the two sides of the Red Sea dating to prehistory. The issue has still not been properly addressed, however, by archaeogenetics. We focus our attention here on the mitochondrial haplogroup HV1 that is present in both the Arabian Peninsula and East Africa. The internal variation of 38 complete mitochondrial DNA sequences (20 of them presented here...
Post-Last Glacial Maximum expansion from Iberia to North Africa revealed by fin...
Cherni, L; Fernandes, V; Pereira, JB; Costa, MD; Goios, A; Frigi, S; Yacoubi-Loueslati, B; Amor, MB; Slama, A; Amorim, A; El Gaaied, ABA; Pereira, LThe first large-scale fine characterization of Tunisian H lineages clarifies that the post-Last glacial maximum expansion originating in Iberia not only led to the resettlement of Europe but also of North Africa. We 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. Although no sign...
Data from complete mtDNA sequencing of Tunisian centenarians: testing haplogrou...
Costa, MD; Fernandes, V; Freitas, F; Cherni, L; El Gaaied, ABA; Pereira, LSince the mitochondrial theory of ageing was proposed, mitochondrial DNA (mtDNA) diversity has been largely studied in old people, however complete genomes are still rare, being limited to Japanese and UK/US samples. In this work, we evaluated possible longevity associated polymorphisms/haplogroups in an African population, from Tunisia, by performing complete mtDNA sequencing. This population has a mixed Euras...
Data for Y-chromosome haplotypes defined by 17 STRs (AmpFLSTR® Yfiler™) in two ...
Frigi, S; Pereira, F; Pereira, L; Yacoubi, B; Gusmão, L; Alves, C; Khodjet el Khil, H; Cherni, L; Amorim, A; El Gaaied, AThe 17 Y-chromosomal short tandem repeats (STRs) included in the AmpFLSTR Yfiler PCR Amplification Kit (AB Applied Biosystems) (DYS19, DYS389I, DYS389II, DYS390, DYS391, DYS392, DYS393, DYS385, DYS437, DYS438, DYS439, DYS448, DYS456, DYS458, DYS635 and GATA H4) were typed in two Berber communities, a small village (Takrouna) and a town (Sejenane), from North Tunisia. As expected, diversity was higher in the tow...
Islands inside an island: reproductive isolates on Jerba Island
Loueslati, BY; Cherni, L; Enaafaa, H; Khodjet el Khil, H; Pereira, L; Amorim, A; Ben Ayed, F; El Gaaied, AJerba Island, located in South Eastern Tunisia, is inhabited by four ethnic groups: Berbers, Arabs, sub-Saharans, and Jews. All live in distinct areas, although the Arabs are also distributed all over the island. The first Arab settlement was founded in the 7th century A.D., so co-existence with Berbers has lasted for more than a millennium. Religious and cultural differences have represented an obstacle to the...
Female gene pools of Berber and Arab neighboring communities in Central Tunisia...
Cherni, L; Yacoubi-Loueslati, B; Pereira, L; Ennafaâ, H; Amorim, A; El Gaaied, ABANorth African populations are considered genetically closer to Eurasians than to sub-Saharans. However, they display a considerably high mtDNA heterogeneity among them, namely in the frequencies of the U6, East African, and sub-Saharan haplogroups. In this study, we describe and compare the female gene pools of two neighboring Tunisian populations, Kesra (Berber) and Zriba (non-Berber), which have contrasting h...