Dated phylogeny suggests early Neolithic origin of Sino-Tibetan languages.

Dated phylogeny suggests early Neolithic origin of Sino-Tibetan languages.
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定年研究表明汉藏语系起源于新石器时代早期。

DOI:
10.1038/s41598-020-77404-4
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发表时间:
2020-11-27
期刊:
影响因子:
4.6
通讯作者:
Mace R
Mace R
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Zhang H;Ji T;Pagel M;Mace R

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准确重建汉藏语系语言的演变过程将极大地促进我们对东亚人口历史的理解。最近的两个系统发育研究试图这样做,但他们的一些结论是不同的。在这里,我们重建的汉藏语系的系统发育,使用贝叶斯计算方法适用于一个更大的和语言上更多样化的样本。我们的研究结果证实了以前的工作,发现祖先汉藏人首先分裂成Sinitic和藏缅语分支,并支持存在关键的内部关系。但我们发现,这一组的初始分歧发生早于以前建议,在大约8000年前,与小米为基础的农业和黄河流域的重大环境变化的开始。我们的研究结果表明,系统发育史的关键方面可以在这个复杂的语言家族中复制,并呼吁更细致入微地了解第一个汉藏语系的语言进化的“早期农业扩散”理论。
An accurate reconstruction of Sino-Tibetan language evolution would greatly advance our understanding of East Asian population history. Two recent phylogenetic studies attempted to do so but several of their conclusions are different from each other. Here we reconstruct the phylogeny of the Sino-Tibetan language family, using Bayesian computational methods applied to a larger and linguistically more diverse sample. Our results confirm previous work in finding that the ancestral Sino-Tibetans first split into Sinitic and Tibeto-Burman clades, and support the existence of key internal relationships. But we find that the initial divergence of this group occurred earlier than previously suggested, at approximately 8000 years before the present, coinciding with the onset of millet-based agriculture and significant environmental changes in the Yellow River region. Our findings illustrate that key aspects of phylogenetic history can be replicated in this complex language family, and calls for a more nuanced understanding of the first Sino-Tibetan speakers in relation to the “early farming dispersal” theory of language evolution.
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