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2017 article claims: Nubians an admixed group with gene-flow from outside of Africa
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[QUOTE]Originally posted by Tukuler: [QB] [QUOTE]Originally posted by Tukuler: BTW Is the 3k migration from the Arabian Peninsula sex biased? Did the Habesh originate in Djebuti/ Eritrea/Ethiopia and return with Peninsular females?[/QUOTE] [QUOTE]Originally posted by capra: [qb] PPS i don't know. MENA mtDNA frequency in the Horn of Africa seems to track pretty closely to autosomal proportion suggesting not much sex bias either way. Y hgs all over the place as they tend to be. [/qb][/QUOTE][Pagani (2012)] [The non-African component was found to be more similar to populations inhabiting the Levant rather than the Arabian Peninsula,] Whoops. It was the Levant not the AP. [genetic studies indicate that a major component of recent Ethiopian ancestry originates outside Africa: for example, half of the mtDNA haplotypes16 ] Yah. 1 out of 2 mtDNA HGs versus 1 out of 5 nrY HGs is definitely a sex bias. But not any Arabian Habesh women. So I guess Sabaean cross currents don't apply. [the genomic regions containing functionally divergent genes might experience either positive or negative selection, depending on whether their adaptive contribution was beneficial or damaging in the new environment, or whether it affected social factors such as sexual selection.] [the presence of the derived A allele of the SNP rs1834640, associated with the light skin pigmentation of Europeans and western Asians,47 at higher frequencies in Semitic-Cushitic groups compared with Omotic, Nilotic, or Nigerian- Congolese groups (0.55 versus 0.23, 0.07, and 0.04, respectively).] Are there later studies contradicting this Pagani. Also, was the flow via the Red Sea, the west coastlands of the Red Sea, or the Nile? What in history or archaeology goes along with the genetics? [/QB][/QUOTE]
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