11 mayo 2015
A new population genetics model could explain why the genetic composition of Finnish people is so different from that of other European populations. Researchers discovered a previously unknown bottleneck that likely happened between 10,000 to 20,000 years ago in the Finnish population that did not occur in other European populations. A bottleneck is a period of time when the population size decrease significantly and then recovers. Bottlenecks can be explained by major events such as migration, environmental events, disease or war. Because there are fewer people left after a bottleneck, the population’s offspring have fewer genetic differences, as is the case in Finland.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Tr-64Z9BQ1I/150511095358.htm
