Todd R Disotell, New York University, New York, USA
Published online: March 2008
DOI: 10.1002/9780470015902.a0005300.pub2
Modern humans originated recently in geological time from a diverse African gene pool. Very little if any interbreeding probably occurred with existing archaic human populations outside of Africa such as the Neanderthals of Europe.
Keywords: multiregional model; single recent replacement model; coalescence; Neanderthal; mitochondrial DNA
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Figure 1. (a) Multiregional model and (b) recent replacement model. See figure key for explanations.
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Figure 2. Worldwide median-joining network of mitochondrial haplogroups. Sizes of haplogroup clusters are proportional to their frequencies. Reproduced from Kivisild et al. (
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Figure 3. Single recent replacement model with two primary migrations out of Africa.
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| References | |
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| Further Reading | |
| Cann RL (2001) Genetic clues to dispersal in human populations: retracing the past from the present. Science 291: 1742–1748. | |
| Krings M, Stone A, Schmitz RW et al. (1997) Neanderthal DNA sequences and the origin of modern humans. Cell 90: 19–30. | |
| Wolpoff MH, Hawks J, Frayer DW and Hunley (2001) Modern human ancestry at the peripheries: a test of the replacement theory. Science 291: 293–297. | |
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