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- Bottlenecks that reduced genetic diversity were common throughout human . . .
From contemporary and ancient DNA, UC Berkeley researchers estimated when population bottlenecks occurred for several hundred groups around the world and throughout recent human history The colors indicate the number of generations the bottleneck or founder event preceded the individuals whose DNA was sequenced
- Human ancestors may have almost died out after ancient population crash
Almost 99% of all human ancestors may have been wiped out around 930,000 years ago, a new paper has claimed The new research, published in the journal Science, used DNA from living people to suggest that humans went through a bottleneck, an event where populations shrink drastically
- Our Human Ancestors Very Nearly Went Extinct 900,000 Years Ago . . .
Our Human Ancestors Very Nearly Went Extinct 900,000 Years Ago, Genetics Suggest A study proposes that the population that gave rise to modern humans may have been reduced to roughly 1,300
- Insufficient Evidence for a Severe Bottleneck in Humans During the . . .
Abstract A recently proposed model suggests a severe bottleneck in the panmictic ancestral population of modern humans during the Early to Middle Pleistocene transition Here, we show this model provides a worse fit to the data than a panmictic model without the bottleneck
- Early Human Ancestors Went Through Severe Population Bottleneck 850,000 . . .
Their results show that human ancestors went through a severe population bottleneck with about 1,280 breeding individuals between around 930,000 and 813,000 years ago; this bottleneck lasted for about 117,000 years and brought human ancestors close to extinction
- Genomic inference of a severe human bottleneck during the Early to . . .
The bottleneck could also have increased the inbreeding level of our ancestors, thus contributing to the 65 85% loss in present-day human genetic diversity The ancient population size reduction that occurred around 930 kyr BP was likely driven by climatic changes during the Early to Mid-dle Pleistocene transition (33, 34)
- The impact of recent population history on the deleterious mutation . . .
Over the past decade, there has been both great interest and confusion about whether recent demographic events — notably the Out-of-Africa-bottleneck and recent population growth — have led to differences in mutation load among human populations
- Population Bottlenecks and Pleistocene Human Evolution
This early population size bottleneck has great explanatory power and impor- tant implications for understanding genetic variation and its relationship with past population size
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