quote: The Western North African population was characterized by the presence of Iberomaurusian civilization at the Epiplaeolithic period (around 20,000 years before present (YBP) to 10,000 YBP). The origin of this population is still not clear: they may come from Europe, Near East, sub-Saharan Africa or they could have evolved in situ in North Africa. With the aim to contribute to a better knowledge of the settlement of North Africa we analysed the mitochondrial DNA extracted from Iberomaurusian skeletons exhumed from the archaeological site of Afalou (AFA) (15,000–11,000 YBP) in Algeria and from the archaeological site of Taforalt (TAF) (23,000–10,800 YBP) in Morocco. Then, we carried out a phylogenetic analysis relating these Iberomaurusians to 61 current Mediterranean populations.
The genetic structure of TAF and AFA specimens contains only North African and Eurasian maternal lineages. These finding demonstrate the presence of these haplotypes in North Africa from at least 20,000 YBP. The very low contribution of a Sub-Saharan African haplotype in the Iberomaurusian samples is confirmed. We also highlighted the existence of genetic flows between Southern and Northern coast of the Mediterranean.
—Rym Kefi et al.
On the origin of Iberomaurusians: new data based on ancient mitochondrial DNA and phylogenetic analysis of Afalou and Taforalt populations
Journal Mitochondrial DNA Part A DNA Mapping, Sequencing, and Analysis Volume 29, 2018 - Issue 1
Posts: 22234 | From: האם אינכם כילדי הכרית אלי בני ישראל | Registered: Nov 2010
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Can anyone get a copy of this paper? I will assume that they found the same genes associated with the Abusir mummies. Thusly showing continuity among and within the population. When will these authors stop pretending that Africans only carry L mtDNA
-------------------- C. A. Winters Posts: 13012 | From: Chicago | Registered: Jan 2006
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HA! HA! Ha! HA! HA! Nice Ish! Caught in their lies..... and of all people. Kefi. She is a wannabe?
-------------------- Without data you are just another person with an opinion - Deming Posts: 12143 | From: When you have eliminated the impossible, whatever remains, however improbable | Registered: Jun 2007
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Pleistocene North African genomes link Near Eastern and sub-Saharan African human populations 2018
Marieke van de Loosdrecht1
Mitochondrial consensus sequences of the Taforalt indi-viduals belong to the U6a (n = 6) and M1b (n = 1) haplogroups (15), which are mostly confined to present-day populations in North and East Africa (7). U6 and M1 have been proposed as markers for autochthonous Maghreb ancestry, which might have been originally introduced into this region by a back-to-Africa migration from West Asia (6, 7). The occurrence of both haplogroups in the Taforalt individuals proves their pre-Holocene presence in the Maghreb. We analyzed the seven ancient Taforalt in combination with four Upper Paleolithic European mtDNA genomes (22, 23) and present-day individ-uals belonging to U6 and M1 (7) in BEAST v1.8.1 (24). Using a human mtDNA mutation rate inferred from tip calibration of ancient mtDNA genomes (23), we obtained divergence es-timates for U6 at 37,000 yBP (40,000-34,000 yBP for 95% highest posterior density, HPD) and M1 at 24,000 yBP (95% HPD, 29,000-20,000 yBP) (table S15). Our estimates are con-siderably younger than those of a study using present-day data only (45,000 ± 7000 yBP for U6 and 37,000 ± 7000 yBP for M1) (7), though similar to those of (25). Moreover, we ob-serve an asynchronous increase in the effective population size for U6 and M1 (fig. S24). This suggests that the demo-graphic histories of these North and East African haplog-roups do not coincide and might have been influenced by multiple expansions in the Late Pleistocene (25). Notably, the diversification of haplogroup U6a and M1 found for Taforalt is dated to ~24,000 yBP (fig. S23), which is close in time to
^ why is this analysis showing hapologroup M1 but the thread topic article by Kefi is not ??
Posts: 42920 | From: , | Registered: Jan 2010
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Tukuler
multidisciplinary Black Scholar
Member # 19944
posted
Good example of objective apolitical science.
Kefi is a Tamazight Northafrocentric hellbent toeing their nationalist line of no relation to Africa's blacks. Amazigh militants claim a North Africanity totally unrelated to us "Gnawa" (Guineas) Africans.
She lied about Taf 8 in two previous papers (check ES archives) and supposedly via outside sources has changed her L3 M or N assignment of Taf 8.
Tell me how no more than one HVSI point assure 3 - 4 downstream Hg assignment of a sample? No RFLP? No pinpoint accuracy.
Go look-up 16223T in Phylotree. See if you only get U4a2b.
Shoulda seen the look she gave me
Will have to review and revise this in light of her latest though I hate to even scan a Kefi article.
Compare this with her latest Hgs in Table 3, posted earlier. Mine is Wood based and could stand a Phylotree/Haplogrep update. Unlike Kefi I'd report all relevant alternative Hgs not just the ones negating pre-LAM* Gnawa presences.
And don't forget, all Taf samples are terminal not founder Maurusians.
* LAM Last Arid Maximum in Africa when the Monsoons retreated furthest south
Pleistocene North African genomes link Near Eastern and sub-Saharan African human populations 2018
Marieke van de Loosdrecht1
Mitochondrial consensus sequences of the Taforalt indi-viduals belong to the U6a (n = 6) and M1b (n = 1) haplogroups (15), which are mostly confined to present-day populations in North and East Africa (7). U6 and M1 have been proposed as markers for autochthonous Maghreb ancestry, which might have been originally introduced into this region by a back-to-Africa migration from West Asia (6, 7). The occurrence of both haplogroups in the Taforalt individuals proves their pre-Holocene presence in the Maghreb. We analyzed the seven ancient Taforalt in combination with four Upper Paleolithic European mtDNA genomes (22, 23) and present-day individ-uals belonging to U6 and M1 (7) in BEAST v1.8.1 (24). Using a human mtDNA mutation rate inferred from tip calibration of ancient mtDNA genomes (23), we obtained divergence es-timates for U6 at 37,000 yBP (40,000-34,000 yBP for 95% highest posterior density, HPD) and M1 at 24,000 yBP (95% HPD, 29,000-20,000 yBP) (table S15). Our estimates are con-siderably younger than those of a study using present-day data only (45,000 ± 7000 yBP for U6 and 37,000 ± 7000 yBP for M1) (7), though similar to those of (25). Moreover, we ob-serve an asynchronous increase in the effective population size for U6 and M1 (fig. S24). This suggests that the demo-graphic histories of these North and East African haplog-roups do not coincide and might have been influenced by multiple expansions in the Late Pleistocene (25). Notably, the diversification of haplogroup U6a and M1 found for Taforalt is dated to ~24,000 yBP (fig. S23), which is close in time to
^ why is this analysis showing haplogroup M1 but the thread topic article by Kefi is not ??
capra, Swenet, or El Maestro can you address this ? Does this have to do with different samples or different methods?
Posts: 42920 | From: , | Registered: Jan 2010
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