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| Untersuchte Arbeit: Seite: 14, Zeilen: 11-16 |
Quelle: Salas et al 2002 Seite(n): 1102, Zeilen: left col. 41-51 |
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| The three main haplogroups, which are found only in Africa are L1, L2, and L3. Of interest and greater prevalence in East Africa is L3, where it accounts for about half of all types from this region. This frequency profile suggests an origin for L3 in East Africa (Watson et al., 1997; Forster, 2004). This is supported by the evidence that the out-of-Africa migration, which took place from a source in East Africa 60,000–80,000 years ago, gave rise only to L3 lineages outside Africa.
Forster, P., Ice ages and the mitochondrial DNA chronology of human dispersals: a review, Philos Trans R Soc Lond B Biol Sci, 359, 255-264, 2004. Watson, E., P. Forster, M. Richards, and H. J. Bandelt, Mitochondrial footprints of human expansions in Africa, Am J Hum Genet, 61, 691-704, 1997. |
We here define two previously unlabeled subclades of L3A, L3f, and L3g. The lineages remaining within L3* represent ∼20% of all L3A types in Africa. Although they are distributed throughout the continent, they reach the highest frequencies in East Africa, where they account for about half of all types from this region. This frequency profile suggests an origin for L3 in East Africa (Watson et al. 1997). This is supported by the evidence that the out-of-Africa migration, which took place from a source in East Africa 60,000–80,000 years ago, gave rise only to L3 lineages outside Africa.
Watson E, Forster P, Richards M, Bandelt H-J (1997) Mitochondrial footprints of human expansions in Africa. Am J Hum Genet 61:691–704 |
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