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Ancient Egyptian DNA from 1300BC to 426 AD
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[QUOTE]Originally posted by Doug M: [QB] [QUOTE]Originally posted by Swenet: [qb] [QUOTE]Originally posted by the Lioness,: I could mean [b]Doug wins.[/b][/QUOTE]Lol. We saw the same comments of Doug "winning" in the 'black' thread. I guess Doug's wack-a-mole strategy of constantly retreating to a more defensible position really pays off. [IMG]https://i.makeagif.com/media/9-12-2015/CPuNNj.gif?w=1400[/IMG] [/qb][/QUOTE]No. I am just pointing out that Lazirdis and others discussing Basal Eurasian and EEF use such extreme methodologies to define the biological components being used that it is pointless to make generalized associations. The Lazirdis paper has pages and pages of tables, charts and documentation and methodology used to define these populations. So it isnt a simple case of looking at the main DNA components and defining relationships. They took modern DNA and then some ancient DNA and did a whole lot of filtering out of various populations and DNA in order to come up with this "model" of Basal Eurasian and EEF. And because of that extreme filtering of the data it makes those terms useless outside of the context they are originally used because you would need to match the same extreme filtered biological components to other populations which as shown in Lazirdis was no simple calculation. Hence, if the original population contained African ancestry (not using Mota here) then most of that African ancestry has been filtered out to focus on the associations between the populations listed as the main components of modern European ancestry. And I have been saying similar things about misunderstanding the relationship between Africa and Eurasia since the when to use black thread. What you claim is whack a mole is actually you ducking and dodging the point I have been making consistently over pages and pages of threads. http://www.egyptsearch.com/forums/ultimatebb.cgi?ubb=get_topic;f=8;t=009335;p=1#001970 [QUOTE] In the new paper, Prof David Reich from the Harvard Medical School and colleagues studied the genomes of seven hunter-gatherers from Scandinavia, one hunter whose remains were found in a cave in Luxembourg and an early farmer from Stuttgart, Germany. The hunters arrived in Europe thousands of years before the advent of agriculture, hunkered down in southern refuges during the Ice Age and then expanded during a period called the Mesolithic, after the ice sheets had retreated from central and northern Europe. Their genetic profile is not a good match for any modern group of people, suggesting they were caught up in the farming wave of advance. However, their genes live on in modern Europeans, to a greater extent in the north-east than in the south. The early farmer genome showed a completely different pattern, however. Her genetic profile was a good match for modern people in Sardinia, and was rather different from the indigenous hunters. [b]But, puzzlingly, while the early farmers share genetic similarities with Near Eastern people at a global level, they are significantly different in other ways. Prof Reich suggests that more recent migrations in the farmers' "homeland" may have diluted their genetic signal in that region today. Prof Reich explained: "The only way we'll be able to prove this is by getting ancient DNA samples along the potential trail from the Near East to Europe... and seeing if they genetically match these predictions or if they're different. [/b] [/QUOTE] http://www.bbc.com/news/science-environment-29213892 [QUOTE] [b]A population without Neanderthal admixture, basal to other Eurasians, may have plausibly lived in Africa. Craniometric analyses have suggested an affinity between the Natufians and populations of north or sub-Saharan Africa24,25, a result that finds some support from Y chromosome analysis which shows that the Natufians and successor Levantine Neolithic populations carried haplogroup E, of likely ultimate African origin, which has not been detected in other ancient males from West Eurasia (Supplementary Information, section 6) 7,8. However, no affinity of Natufians to sub-Saharan Africans is evident in our genome-wide analysis, as present-day sub-Saharan Africans do not share more alleles with Natufians than with other ancient Eurasians (Extended Data Table 1). (We could not test for a link to present-day North Africans, who owe most of their ancestry to back-migration from Eurasia26,27.) The idea of Natufians as a vector for the movement of Basal Eurasian ancestry into the Near East is also not supported by our data, as the Basal Eurasian ancestry in the Natufians (44±8%) is consistent with stemming from the same population as that in the Neolithic and Mesolithic populations of Iran, and is not greater than in those populations (Supplementary Information, section 4). Further insight into the origins and legacy of the Natufians could come from comparison to Natufians from additional sites, and to ancient DNA from north Africa.[/b] [b]Extreme regional differentiation in the ancient Near East[/b] PCA on present-day West Eurasian populations (Methods) (Extended Data Fig. 1) on which we projected the ancient individuals (Fig. 1b) replicates previous findings of a Europe-Near East contrast along the horizontal Principal Component 1 (PC1) and parallel clines (PC2) in both Europe and the Near East (Extended Data Fig. 1)7,8,13. Ancient samples from the Levant project at one end of the Near Eastern cline, and ancient samples from Iran at the other. The two Caucasus Hunter Gatherers (CHG)9 are less extreme along PC1 than the Mesolithic and Neolithic individuals from Iran, while individuals from Chalcolithic Anatolia, Iran, and Armenia, and Bronze Age Armenia occupy intermediate positions. Qualitatively, the PCA has the appearance of a quadrangle whose four corners are some of the oldest samples: bottom-left: Western Hunter Gatherers (WHG), top-left: Eastern Hunter Gatherers (EHG), bottom-right: Neolithic Levant and Natufians, top-right: Neolithic Iran. This suggests the hypothesis that diverse ancient West Eurasians can be modelled as mixtures of as few as four streams of ancestry related to these populations, which we confirmed using qpWave7 (Supplementary Information, section 7).[/QUOTE] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5003663/ [/QB][/QUOTE]
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