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在人类主要的走出非洲扩散之后,波斯高原成为了智人的中心。

The Persian plateau served as hub for Homo sapiens after the main out of Africa dispersal.

机构信息

Department of Biology, University of Padova, Padova, Italy.

Department of Archaeology, Max Planck Institute for Geoanthropology, Jena, Germany.

出版信息

Nat Commun. 2024 Mar 25;15(1):1882. doi: 10.1038/s41467-024-46161-7.

Abstract

A combination of evidence, based on genetic, fossil and archaeological findings, indicates that Homo sapiens spread out of Africa between ~70-60 thousand years ago (kya). However, it appears that once outside of Africa, human populations did not expand across all of Eurasia until ~45 kya. The geographic whereabouts of these early settlers in the timeframe between ~70-60 to 45 kya has been difficult to reconcile. Here we combine genetic evidence and palaeoecological models to infer the geographic location that acted as the Hub for our species during the early phases of colonisation of Eurasia. Leveraging on available genomic evidence we show that populations from the Persian Plateau carry an ancestry component that closely matches the population that settled the Hub outside Africa. With the paleoclimatic data available to date, we built ecological models showing that the Persian Plateau was suitable for human occupation and that it could sustain a larger population compared to other West Asian regions, strengthening this claim.

摘要

基于遗传、化石和考古发现的综合证据表明,智人在 7 万至 6 万年前(kya)从非洲扩散出去。然而,似乎一旦离开非洲,人类种群直到 4.5 万年前才在整个欧亚大陆扩张。在 7 万至 6 万到 4.5 万年前这段时间里,这些早期定居者的地理位置一直难以协调。在这里,我们结合遗传证据和古生态学模型来推断在欧亚大陆早期殖民阶段充当我们物种中心的地理位置。利用现有的基因组证据,我们表明来自伊朗高原的人群携带的祖先成分与在非洲以外定居中心的人群非常匹配。利用目前可用的古气候数据,我们构建了生态模型,表明伊朗高原适合人类居住,并且与其他西亚地区相比,它可以维持更大的人口,这一说法得到了加强。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/81e1/10963722/57645a09b3cb/41467_2024_46161_Fig1_HTML.jpg

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