Followers | 0 |
Posts | 1151 |
Boards Moderated | 0 |
Alias Born | 07/10/2003 |
![](http://investorshub.advfn.com/images/default_ih_profile2_4848.jpg?cb=0)
Friday, July 23, 2004 4:15:08 PM
Luis JR, Rowold DJ, Regueiro M, Caeiro B, Cinnioglu C, Roseman C, Underhill PA, Cavalli-Sforza LL, Herrera RJ.
Department of Biological Sciences, Florida International University, Miami, 33199, USA.
Paleoanthropological evidence indicates that both the Levantine corridor and the Horn of Africa served, repeatedly, as migratory corridors between Africa and Eurasia. We have begun investigating the roles of these passageways in bidirectional migrations of anatomically modern humans, by analyzing 45 informative biallelic markers as well as 10 microsatellite loci on the nonrecombining region of the Y chromosome (NRY) in 121 and 147 extant males from Oman and northern Egypt, respectively. The present study uncovers three important points concerning these demic movements: (1) The E3b1-M78 and E3b3-M123 lineages, as well as the R1*-M173 lineages, mark gene flow between Egypt and the Levant during the Upper Paleolithic and Mesolithic. (2) In contrast, the Horn of Africa appears to be of minor importance in the human migratory movements between Africa and Eurasia represented by these chromosomes, an observation based on the frequency distributions of E3b*-M35 (no known downstream mutations) and M173. (3) The areal diffusion patterns of G-M201, J-12f2, the derivative M173 haplogroups, and M2 suggest more recent genetic associations between the Middle East and Africa, involving the Levantine corridor and/or Arab slave routes. Affinities to African groups were also evaluated by determining the NRY haplogroup composition in 434 samples from seven sub-Saharan African populations. Oman and Egypt's NRY frequency distributions appear to be much more similar to those of the Middle East than to any sub-Saharan African population, suggesting a much larger Eurasian genetic component. Finally, the overall phylogeographic profile reveals several clinal patterns and genetic partitions that may indicate source, direction, and relative timing of different waves of dispersals and expansions involving these nine populations.
FEATURED Element79 Gold Corp Provides Update on Nevada Portfolio • Aug 23, 2024 8:00 AM
PickleJar Unveils Latest Venue Managed Services Innovations in Upcoming Webinar • PKLE • Aug 23, 2024 1:11 PM
Maybacks Adds Award Winning Show to Its Lineup Discusses Maybacks Opportunity • AHRO • Aug 22, 2024 11:30 AM
North Bay Resources Announces First Gold Concentrate at Mt. Vernon Gold Mine, Assays 12 oz/ton Gold, 17.5 oz/ton Platinum, and 8 oz./ton Silver, Sierra County, California • NBRI • Aug 22, 2024 10:28 AM
All Things Mobile Analytic, Inc. Reports Major Growth with Over $11 Million in Revenue • ATMH • Aug 22, 2024 7:19 AM
Unitronix Announces Strategic Entry into Cryptocurrency Space • UTRX • Aug 21, 2024 10:00 AM