...
Post A Reply
my profile
|
directory
login
|
register
|
search
|
faq
|
forum home
»
EgyptSearch Forums
»
Egyptology
»
Modern North Africans' recent origin is outside Africa
» Post A Reply
Post A Reply
Login Name:
Password:
Message Icon:
Message:
HTML is not enabled.
UBB Code™ is enabled.
[QUOTE]Originally posted by Troll Patrol # Ish Gebor: [QB] [QUOTE]Originally posted by the lioness,: [qb] [QUOTE]Originally posted by Troll Patrol # Ish Gebor: [qb] [QUOTE] Discussion In this study we attempted to better elucidate the ancient African genetic background in the northwest African area, particularly in Tunisia. To this aim, we focused our study on Berber populations that are considered representative of the ancient North African populations that probably derived from Neolithic Capsians. During historic times, Berbers experienced a long and complicated history with many invasions, conquests, and migrations by Phoenicians, Romans, Vandals, Byzantines, Arabs, Bedouins, Spanish, Turks, Andalusians, sub-Saharans (com- munities settled in Jerba and Gabes in the 16th–19th centuries), and French (Brett and Fentress 1996). During these invasions, Berbers were forced back to the moun- tains and to certain villages in southern Tunisia (Fadhlaoui-Zid et al. 2004). At present, they are restricted to some isolates in the south who maintain the Berber language and to some populations in the north who lack an origin language. Many genetic studies on Tunisian Berber populations demonstrate the hetero- geneity of Berbers with respect to European and sub-Saharan African contributions and the mosaic structure of Tunisian Berber populations with an absence of ethnic, linguistic, and geographic effects (Cherni et al. 2010). [/QUOTE]--Sabeh Frigi, Lotfi Cherni, Karima Fadhlaoui-Zid Ancient Local Evolution of African mtDNA Haplogroups in Tunisian Berber Populations [/qb][/QUOTE]"Berbers experienced a long and complicated history with many invasions, conquests, and migrations by Phoenicians, Romans, Vandals, Byzantines, Arabs, Bedouins, Spanish, Turks, Andalusians, sub-Saharans (com- munities settled in Jerba and Gabes in the 16th–19th centuries), and French (Brett and Fentress 1996)." ^^^ this is why genetically the Sahel is more related to West Africa than North Africa because these invasions and migrations by foreigners were not as prominent there. -even though Tuareg as a culture overlaps both regions [/qb][/QUOTE]Could be, they don't say so directly. [QUOTE] According to David Comas, coordinator of the study and researcher at the Institute for Evolutionary Biology (CSIC-UPF), [b]"some of the questions we wanted to answer were whether today's inhabitants are direct descendants of the populations with the oldest archaeological remains in the region, dating back fifty thousand years, or whether they are descendants of the Neolithic populations in the Middle East which introduced agriculture to the region around eight thousand years ago. We also wondered if there had been any genetic exchange between the North African populations and the neighbouring regions and if so, when these took place.[/b] A native genetic component defines North Africans To answer these questions, the researchers analyzed around 800,000 genetic markers, distributed throughout the entire genome in 125 North African individuals belonging to seven representative populations in the whole region, and the information obtained was [i]compared with the information from the neighbouring populations.[/i] The results of this study show that there is a native genetic component which defines North Africans. [b]In-depth study of these markers, shows that the people inhabiting North Africa today are not descendants of either the earliest occupants of this region fifty thousand years ago, or descendants of the most recent Neolithic populations.[/b] The ancestors of modern North Africans returned to Africa [b]The data shows that the ancestors of today's North Africans[/b] were a group of populations which already lived in the region around thirteen thousand years ago. [b]Furthermore, this local North African genetic component is very different[/b] from the one found in the populations in the south of the Sahara, which shows that [b]the ancestors of today's North Africans were members of a subgroup of humanity who left Africa to conquer the rest of the world and who subsequently returned to the north of the continent to settle in the region.[/b] [/QUOTE]--David Comas [QUOTE] "however, the time and the extent of genetic divergence between [b]populations north and south of the Sahara[/b] remain poorly understood" [/QUOTE]--Brenna Henn Published: [b]January 12, 2012[/b]DOI: 10.1371/journal.pgen.1002397: "Genomic Ancestry of North Africans Supports Back-to-Africa Migrations" [/QB][/QUOTE]
Instant Graemlins
Instant UBB Code™
What is UBB Code™?
Options
Disable Graemlins in this post.
*** Click here to review this topic. ***
Contact Us
|
EgyptSearch!
(c) 2015 EgyptSearch.com
Powered by UBB.classic™ 6.7.3