...
Post A Reply
my profile
|
directory
login
|
register
|
search
|
faq
|
forum home
»
EgyptSearch Forums
»
Deshret
»
Why I have no respect for Africans
» Post A Reply
Post A Reply
Login Name:
Password:
Message Icon:
Message:
HTML is not enabled.
UBB Code™ is enabled.
[QUOTE]Originally posted by Ish Gebor: [QB] [QUOTE]Originally posted by the lioness,: [qb] The trans-Saharan slave trade - clues from interpolation analyses and high-resolution characterization of mitochondrial DNA lineages [/qb][/QUOTE]I wonder why you didn't cite this here? [QUOTE] We use high-resolution genetic data to investigate the genetic and linguistic support for hypotheses concerning the population history in the Chad Basin. The mitochondrial L3f3 haplogroup is found almost exclusively in Chadic speaking populations and its TMRCA corresponds well with archaeological and linguistic dates of the proposed migration of Chadic speaking pastoralists from East or North East Africa to the Chad Basin. Haplogroup L3f is defined by the coding variants 3396-4218-15514-15944del and the control region motif 16209–16519 with a [b]TMRCA of 57,100 ± 9,400 YBP[/b]. This haplogroup diversifies into sub-haplogroups L3f1, L3f2 and L3f3. [i]The most geographically widespread sub-haplogroup is L3f1, which is distributed across the African continent [3] and also Arabia [32,33] and has a TMRCA of [b]48,600 ± 11,500 YBP[/b].[/i] [...] "The youngest clade, L3f1b2, seems to be more frequent in the Middle East. L3f1a seems to be older [b](37,700 ± 10,000 YBP)[/b] than its sister sub-haplogroup L3f1b and is also less diversified. A few samples from Chad belong to these sub-haplogroups: two to L3f1a and one to L3f1b3." "We then estimated pairwise FST genetic distances between populations (Additional file 4) and displayed these on a MDS plot (Figure 3). Interesting results are immediately evident – while Chadic populations form a relatively homogeneous group, the Cushitic populations split into two completely different clusters. The first group is composed of Horn of African populations, such as Ethiopian and Somali Cushitic populations, which are close to neighbouring Ethiopian Semitic speaking groups and relatively close also to Chadic people from the Chad Basin. The second Cushitic group is composed by more southern groups from Tanzania, i.e. Burunge and Iraqw, who occupy outlier positions even within the Afro-Asiatic MDS plot. In the MDS plot, geography is more strongly associated with genetic distance than is linguistic affiliation. Overall, we observe that Chadic speaking populations are intermixed with other populations from Chad Basin, including Niger-Congo, Semitic, and Berber speaking people. In this context, it seems that the linguistic categories play a secondary role in structuring the genetic diversity." [/QB][/QUOTE]--Viktor Černư1 et al. Migration of Chadic speaking pastoralists within Africa based on population structure of Chad Basin and phylogeography of mitochondrial L3f haplogroup Nor this: [QUOTE] "Particularly, Yemen has the largest contribution of L lineages (30). So, most probably, this area was the entrance gate of a portion of these lineages in prehistoric times, which participated in the building of the primitive Arabian population." [/QUOTE]--Khaled K Abu-Amero et al. Mitochondrial DNA structure in the Arabian Peninsula [/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