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Nubian aDNA: what the hell is stopping ES members from claiming CL Fox 1997?
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[QUOTE]Originally posted by .Charlie Bass.: [QB] [QUOTE]Originally posted by Swenet: [qb] [b]mtDNA analysis in ancient Nubians supports the existence of gene flow between sub-Sahara and North Africa in the Nile valley[/b] [QUOTE]The Hpal (np3,592) mitochondrial DNA marker is a selectively neutral mutation that is very common in sub-Saharan Africa and is almost absent in North African and European populations. It has been screened in a Meroitic sample from ancient Nubia through PCR amplification and posterior enzyme digestion, to evaluate the sub-Saharan genetic influences in this population. From 29 individuals analysed, only 15 yield positive amplifications, four of them (26.7%) displaying the sub-Saharan African marker. Hpa 1 (np3,592) marker is present in the sub-Saharan populations at a frequency of 68.7 on average. Thus, the frequency of genes from this area in the Merotic Nubian population can be estimated at around 39% (with a confidence interval from 22% to 55%). The frequency obtained fits in a south-north decreasing gradient of Hpa I (np3,592) along the African continent. Results suggest that morphological changes observed historically in the Nubian populations are more likely to be due to the existence of south-north gene flow through the Nile Valley than to in-situ evolution.[/QUOTE]I can't wrap my mind around why this paper is so undercited, aside from Cuckoo Mathilda and her confused puppets. Notice I'm not saying that this paper has been ignored by ES members, as its potential to be misconstrued has been nipped in the bud several times. But why isn't it pro-actively quoted as much as, say, DNA Tribes' Amarna analysis? First of all, judging by the abstract, the authors [i]aren't even saying that these Nubians had 61% non-African mtDNAs[/i], and secondly, their title and abstract are suggesting that they were testing the contributions of Niger Congo speaking Africans in the ancient Nile Valley genepool (which doesn't make sense due to the fact that these lineages predate anything Niger-Congo, but oh well..): [i]Thus, the frequency of genes [b]from this area[/b] in the Merotic Nubian population can be estimated at around 39%[/i] ^They clearly aren't counting Northeast African specific mtDNA Ls (which we now know, are prominent). Thirdly, it is NORMAL for Sudanese to only have ~30% hpa I np 3592 associated uniparentals (L1 and L2): [QUOTE]For mtDNA analysis, a total of 56 haplotypes were observed, all belonging to the major sub-Saharan African and Eurasian mitochondrial macrohapolgroups L0, [b]L1, L2[/b], L4, L5, L3A, M and N in frequencies of 12.1, [b]11.9, 22[/b], 4.2, 6.2, 29.5, 2, and 12.2% respectively.[/QUOTE]--Hassan, 2009 [/qb][/QUOTE]Forget all that nonense arguing with Amun, now back to the topic. By the logic of this study, if my mtDNA was among the samples, I would be counted as NOT being sub-Saharan because my mtDNA haplogroup is L4b2, which is found scattered around the continent but at very low frequencies and highest in Hazda. The reason this study cannot be cited is because it is dated, didn't specific whether the non- Hpa 1 (np3,592) markers are L0 and or L3-L7. perhaps if her samples were tested again we could have a much more accurate presentation. Back then I remember debating Racial Reality aka "Racial Myths" who used this study, well the abstract, to say ancient Nubians were 39% "Negroid" and therefore not black. Hpa 1 (np3,592) is typical of only L1 and L2, but we know L3-L7 and M1 is found at higher frequencies in Northeast Africa. Also in teh fulltext of the study, CL Fox presumed that the Nubian population was originally a "Caucasoid" population that became more Negroid, another reason why this study should not be cited. Swenet step your game up brother, I know you can do better than this, smh [/QB][/QUOTE]
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