Genetic evidence supports demic diffusion of Han culture
Genetic evidence supports demic diffusion of Han culture
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DOI：
10.1038/nature02878
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发表时间：
2004-09-16
期刊：
影响因子：
64.8
通讯作者：
Jin, L
中科院分区：
文献类型：
--
作者：
Wen, B;Li, H;Jin, L
文化和语言在人群中的传播可以用两种模型来解释：人口扩散模型，它涉及人口的大规模流动；文化扩散模型是指群体之间的文化影响，涉及群体之间有限的遗传交换(1)。关于欧洲人定居的机制一直存在争议，其中一个关键问题是，来自近东的农业和语言的传播是否伴随着大规模的农民迁移（1-3）。在这里，我们通过系统地分析汉族人群的y染色体和线粒体DNA变异，表明汉族文化向南扩展的模式与流行病扩散模型是一致的，并且男性在这种扩展中发挥了比女性更大的作用。汉族拥有相同的文化和语言，人口超过11.6亿（2000年人口普查），是迄今为止世界上最大的民族。因此，汉文化的扩张过程引起了许多领域研究者的极大兴趣。
The spread of culture and language in human populations is explained by two alternative models: the demic diffusion model, which involves mass movement of people; and the cultural diffusion model, which refers to cultural impact between populations and involves limited genetic exchange between them(1). The mechanism of the peopling of Europe has long been debated, a key issue being whether the diffusion of agriculture and language from the Near East was concomitant with a large movement of farmers(1-3). Here we show, by systematically analysing Y-chromosome and mitochondrial DNA variation in Han populations, that the pattern of the southward expansion of Han culture is consistent with the demic diffusion model, and that males played a larger role than females in this expansion. The Han people, who all share the same culture and language, exceed 1.16 billion (2000 census), and are by far the largest ethnic group in the world. The expansion process of Han culture is thus of great interest to researchers in many fields.