Project/scholarship details


  • Funder

    FCT - Fundação para a Ciência e a Tecnologia, I.P.

  • Funder's country

    Portugal

  • Funding program

    5876-PPCDTI

  • Funding amount

    87,000.00 €

  • Start date

    Fri Jun 01 00:00:00 WEST 2007

  • End date

    Mon May 31 00:00:00 WEST 2010

  • Date awarded

    Mon Jul 09 00:00:00 WEST 2007

Documents


Local Population structure in Arabian Peninsula revealed by Y-STR diversity

Alshamali, F; Pereira, L; Budowle, B; Poloni, ES; Currat, M

Genetic studies have been underway on Arabian Peninsula populations because of their pivotal geographic location for population migration and times of occurrence. To assist in better understanding population dynamics in this region, evidence is presented herein on local population structure in the Arabian Peninsula, based on Y-STR characterisation in four Arabian samples and its comparison in a broad geographic...


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, L

The 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...


Near Eastern Neolithic genetic input in a small oasis of the Egyptian Western D...

Kujanová, M; Pereira, L; Fernandes, V; Pereira, JB; Cerný, V

The Egyptian Western Desert lies on an important geographic intersection between Africa and Asia. Genetic diversity of this region has been shaped, in part, by climatic changes in the Late Pleistocene and Holocene epochs marked by oscillating humid and arid periods. We present here a whole genome analysis of mitochondrial DNA (mtDNA) and high-resolution molecular analysis of nonrecombining Y-chromosomal (NRY) g...


Migration of Chadic speaking pastoralists within Africa based on population str...

Cerny, V; Fernandes, V; Costa, MD; Hájek, M; Mulligan, CJ; Pereira, L

BACKGROUND: Chad Basin, lying within the bidirectional corridor of African Sahel, is one of the most populated places in Sub-Saharan Africa today. The origin of its settlement appears connected with Holocene climatic ameliorations (aquatic resources) that started ~10,000 years before present (YBP). Although both Nilo-Saharan and Niger-Congo language families are encountered here, the most diversified group is t...


Linking the sub-Saharan and West Eurasian gene pools: maternal and paternal her...

Pereira, L; Cerny, V; Cerezo, M; Silva, NM; Hájek, M; Vasikova, A; Kujanová, M; Brdicka, R; Salas, A

The Tuareg presently live in the Sahara and the Sahel. Their ancestors are commonly believed to be the Garamantes of the Libyan Fezzan, ever since it was suggested by authors of antiquity. Biological evidence, based on classical genetic markers, however, indicates kinship with the Beja of Eastern Sudan. Our study of mitochondrial DNA (mtDNA) sequences and Y chromosome SNPs of three different southern Tuareg gro...


The trans-Saharan slave trade – clues from interpolation analyses and high-reso...

Harich, N; Costa, MD; Fernandes, V; Kandil, M; Pereira, JB; Silva, NM; Pereira, L

BACKGROUND: A proportion of 1/4 to 1/2 of North African female pool is made of typical sub-Saharan lineages, in higher frequencies as geographic proximity to sub-Saharan Africa increases. The Sahara was a strong geographical barrier against gene flow, at least since 5,000 years ago, when desertification affected a larger region, but the Arab trans-Saharan slave trade could have facilitate enormously this migrat...


Genetic structure of pastoral and farmer populations in the African Sahel

Cerny, V; Pereira, L; Musilová, E; Kujanová, M; Vasikova, A; Blasi, P; Garofalo, L; Soares, P; Diallo, I; Brdicka, R; Novelleto, A

Traditional pastoralists survive in few places in the world. They can still be encountered in the African Sahel, where annual alternations of dry and wet seasons force them to continual mobility. Little is known about the genetic structure of these populations. We present here the population distribution of 312 hypervariable segment I mitochondrial DNA (mtDNA) and 364 Y-short tandem repeat haplotypes in both fa...


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, V

Archaeological 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...


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, L

Widespread 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 ...


The expansion of mtDNA haplogroup L3 within and out of Africa

Soares, P; Alshamali, F; Pereira, JB; Fernandes, V; Silva, NM; Afonso, C; Costa, MD; Musilová, E; Macaulay, V; Richards, MB; Cerny, V; Pereira, L

Although fossil remains show that anatomically modern humans dispersed out of Africa into the Near East ∼100 to 130 ka, genetic evidence from extant populations has suggested that non-Africans descend primarily from a single successful later migration. Within the human mitochondrial DNA (mtDNA) tree, haplogroup L3 encompasses not only many sub-Saharan Africans but also all ancient non-African lineages, and its ...

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