The Genomic Formation of South and Central Asia pdf epub mobi txt 電子書 下載 2024


The Genomic Formation of South and Central Asia

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Vagheesh M Narasimhan
2018-4
40
0
Hardcover
9781844537440

圖書標籤: 分子生物學  世界史前史   


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发表于2024-12-25

The Genomic Formation of South and Central Asia epub 下載 mobi 下載 pdf 下載 txt 電子書 下載 2024

The Genomic Formation of South and Central Asia epub 下載 mobi 下載 pdf 下載 txt 電子書 下載 2024

The Genomic Formation of South and Central Asia pdf epub mobi txt 電子書 下載 2024



圖書描述

The genetic formation of Central and South Asian populations has been unclear because of an absence of ancient DNA. To address this gap, we generated genome-wide data from 362 ancient individuals, including the first from eastern Iran, Turan (Uzbekistan, Turkmenistan, and Tajikistan), Bronze Age Kazakhstan, and South Asia. Our data reveal a complex set of genetic sources that ultimately combined to form the ancestry of South Asians today. We document a southward spread of genetic ancestry from the Eurasian Steppe, correlating with the archaeologically known expansion of pastoralist sites from the Steppe to Turan in the Middle Bronze Age (2300-1500 BCE). These Steppe communities mixed genetically with peoples of the Bactria Margiana Archaeological Complex (BMAC) whom they encountered in Turan (primarily descendants of earlier agriculturalists of Iran), but there is no evidence that the main BMAC population contributed genetically to later South Asians. Instead, Steppe communities integrated farther south throughout the 2nd millennium BCE, and we show that they mixed with a more southern population that we document at multiple sites as outlier individuals exhibiting a distinctive mixture of ancestry related to Iranian agriculturalists and South Asian hunter-gathers. We call this group Indus Periphery because they were found at sites in cultural contact with the Indus Valley Civilization (IVC) and along its northern fringe, and also because they were genetically similar to post-IVC groups in the Swat Valley of Pakistan. By co-analyzing ancient DNA and genomic data from diverse present-day South Asians, we show that Indus Periphery-related people are the single most important source of ancestry in South Asia — consistent with the idea that the Indus Periphery individuals are providing us with the first direct look at the ancestry of peoples of the IVC — and we develop a model for the formation of present-day South Asians in terms of the temporally and geographically proximate sources of Indus Periphery-related, Steppe, and local South Asian hunter-gatherer-related ancestry. Our results show how ancestry from the Steppe genetically linked Europe and South Asia in the Bronze Age, and identifies the populations that almost certainly were responsible for spreading Indo-European languages across much of Eurasia.

The Genomic Formation of South and Central Asia 下載 mobi epub pdf txt 電子書

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The Genomic Formation of South and Central Asia pdf epub mobi txt 電子書 下載
想要找書就要到 小哈圖書下載中心
立刻按 ctrl+D收藏本頁
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新鮮齣爐,看得太令人興奮瞭。 尤其West Siberian_HG是個大發現,解釋瞭很多問題。

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新鮮齣爐,看得太令人興奮瞭。 尤其West Siberian_HG是個大發現,解釋瞭很多問題。

評分

新鮮齣爐,看得太令人興奮瞭。 尤其West Siberian_HG是個大發現,解釋瞭很多問題。

評分

新鮮齣爐,看得太令人興奮瞭。 尤其West Siberian_HG是個大發現,解釋瞭很多問題。

評分

新鮮齣爐,看得太令人興奮瞭。 尤其West Siberian_HG是個大發現,解釋瞭很多問題。

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