The Genetic History of Ice Age Europe 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2025

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QiaoMei Fu 作者

Harvard University

译者

2016-11 出版日期

78 页数

0 价格

Paperback

丛书系列

9780711109643 图书编码

The Genetic History of Ice Age Europe 在线电子书图书标签: 分子生物学世界史前史

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发表于2025-06-01

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The Genetic History of Ice Age Europe 在线电子书 epub 下载 mobi 下载 pdf 下载 txt 下载 2025

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Modern humans arrived in Europe ~45,000 years ago, but little is known about their genetic composition before the start of farming ~8,500 years ago. Here we analyse genome-wide data from 51 Eurasians from ~45,000–7,000 years ago. Over this time, the proportion of Neanderthal DNA decreased from 3–6% to around 2%, consistent with natural selection against Neanderthal variants in modern humans. Whereas there is no evidence of the earliest modern humans in Europe contributing to the genetic composition of present-day Europeans, all individuals between ~37,000 and ~14,000 years ago descended from a single founder population which forms part of the ancestry of present-day Europeans. An ~35,000-year-old individual from northwest Europe represents an early branch of this founder population which was then displaced across a broad region, before reappearing in southwest Europe at the height of the last Ice Age ~19,000 years ago. During the major warming period after ~14,000 years ago, a genetic component related to present-day Near Easterners became widespread in Europe. These results document how population turnover and migration have been recurring themes of European prehistory.

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