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population bottleneck |
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population bottleneck [‚päp·yə′lā·shən ′bäd·əl‚nek] (evolution) Genetic drift that occurs as a result of a drastic reduction in population by an event having little to do with the usual forces of natural selection. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Fitness of vesicular stomatitis virus, an animal RNA virus, has been shown to drop precipitously as the virus passed through a series of population bottlenecks (19). The east African results suggest that two major population bottlenecks occurred in the cheetah population. The Yoruba (see Note) show greater genetic diversity than European and Asian people who experienced population bottlenecks in relatively recent human history. |
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