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Was the Maghreb really predominantly Eurasian for 30,000 yrs?
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[QUOTE]Originally posted by Troll Patrol: [QB] ^ You are welcome. [QUOTE]Originally posted by Djehuti: [qb] ^ I don't know about the form found in the Horn but I've had discussions with folks in other forums in regards to the provenance of NRY T. I believe the clade arose 20k-34kybp, though most sources say it is Asian in origin, I find it peculiar that it has its highest frequency in Africa particularly around the Horn region. Djibouti and northwestern Somalia have the highest frequency thus far. Outside Africa, some indigenous groups in Bangladesh and a few in southeastern India have its highest frequency. hg T used to be called K2 and here is what Luis et al. said on the issue in his '[URL=http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1182266/]The Levant versus the Horn of Africa: Evidence for Bidirectional Corridors of Human Migrations[/URL]' (2004): [i] K2-M70 is believed to have originated in Asia after the emergence of the K-M9 polymorphism (45–30 ky) (Underhill et al. 2001a). As deduced from the collective data (Underhill et al. 2000; Cruciani et al. 2002; Semino et al. 2002; present study), K2-M70 individuals, at some later point, proceeded south to Africa. These chromosomes are seen in relatively high frequencies in Egypt, Oman, Tanzania, Ethiopia, and Morocco and are especially prominent in the Fulbe (18% [Scozzari et al. 1997, 1999]), the highest concentration of this haplogroup found so far. The current patchy distribution of K2-M70 in Africa may be a remnant of a more widespread occupation. Subsequent demic events introducing chromosomes carrying the E3b-M35, E3a-M2, G-M201, and J-12f2 haplogroups may have overwhelmed the K2-M70 representatives in some areas. Like the R1*-M173 males, the M70 individuals could represent the relics of an early back migration to Africa from Asia, since these chromosomes are not associated with the G-M201, J-12f2, and R1-M173 derivatives, lineages that represent more-recent Eurasian genetic contributions (Semino et al. 2000; Underhill et al. 2001b). The K2-M70 expansion estimates in Egypt (17.5–13.7 ky; see table 3) are consistent with an early African diaspora. From the present-day African distribution of K2-M70, it is difficult to determine which of the two Africa/Asia migratory passages, if any, prevailed in its southward journey. However, the BATWING expansion estimates of both the Egyptian and Turkish K2-M70 lineages (13.7 ky and 9.0 ky, respectively) are much older than that of Oman (1.6 ky), which suggests that the Levantine corridor may have been used more extensively in the African dissemination of this lineage as well.[/i] As far as NRY K proper, I've read about its presence in Africa as well but this is the first time I've heard of underived K* being present there. [/qb][/QUOTE]I know the Fulani with this admixture carry this from the Baggara Arabs. I however don't know about the other ethnic groups. And I do think the Nubian Complex, is becoming more complex. [IMG]http://upload.wikimedia.org/wikipedia/commons/thumb/a/a1/Baggara_Arabs_Belt.svg/640px-Baggara_Arabs_Belt.svg.png[/IMG] [IMG]http://continentalnews.net/images/2011/01/034.jpg[/IMG] [IMG]http://upload.wikimedia.org/wikipedia/commons/4/43/Cavalier_arabe_du_D%C3%A9kakir%C3%A9_sur_un_cheval_capara%C3%A7onn%C3%A9.jpg[/IMG] [i]Arab horseman photographed by French Colonials, at Dékakiré, Chad. c.1910s. From L'Afrique Équatoriale Française: le pays, les habitants, la colonisation, les pouvoirs publics. Préf. de M. Merlin. (published 1918).[/i] [URL=http://www.flickr.com/photos/35240543@N02/4560212766/] [IMG]http://farm5.staticflickr.com/4051/4560212766_078c952181_z.jpg[/IMG][/URL] [URL=http://www.flickr.com/photos/35240543@N02/4560212766/]Cattle Herder / Portrait[/URL] by [URL=http://www.flickr.com/people/35240543@N02/]Iris (Irene Becker) Happy Xmas, Happy New Year[/URL], on Flickr http://www.flickr.com/photos/35240543@N02/4560212766/in/set-72157622808929582/ [/QB][/QUOTE]
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