Genetic diversity of two Neolithic populations provides evidence of farming expansions in North China

Genetic diversity of two Neolithic populations provides evidence of farming expansions in North China
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两个新石器时代人群的遗传多样性提供了华北农业扩张的证据

DOI:
10.1038/jhg.2016.107
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发表时间:
2016-09
影响因子:
3.5
通讯作者:
Zhou Hui
Zhou Hui
中科院分区:
生物学3区
文献类型:
--
作者:
Zhang Ye;Li Jiawei;Zhao Yongbin;Wu Xiyan;Li Hongjie;Yao Lu;Zhu Hong;Zhou Hui

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西辽河流域和黄河流域是公认的华北新石器时代农业中心。这两个中心之间的人口动态对华北地区当今的遗传模式和农业进步做出了重大贡献。为了了解西辽河流域和黄河流域之间新石器时代农业的扩张,我们分析了姜家梁(> 公元前 3000 年)和三官(公元前 1500 年)两个考古遗址的 48 个人的线粒体 DNA (mtDNA) 和 Y 染色体。这两个地点位于两个农业中心之间,经历了从狩猎到农业的生计转变。我们没有发现mtDNA有显着差异,但他们的Y染色体遗传变异不同。来自姜家梁的个体属于两个Y单倍群,N1(不是N1a或N1c)和N1c。来自三官的个体是Y单倍群O3。支持两个阶段的迁移。公元前3000年左右,西辽河流域的人口向南扩散,随后(公元前3000-1500年),第二次从黄河流域向北扩张。
The West Liao River Valley and the Yellow River Valley are recognized Neolithic farming centers in North China. The population dynamics between these two centers have significantly contributed to the present-day genetic patterns and the agricultural advances of North China. To understand the Neolithic farming expansions between the West Liao River Valley and the Yellow River Valley, we analyzed mitochondrial DNA (mtDNA) and the Y chromosome of 48 individuals from two archeological sites, Jiangjialiang (> 3000 BC) and Sanguan (~ 1500 BC). These two sites are situated between the two farming centers and experienced a subsistence shift from hunting to farming. We did not find a significant difference in the mtDNA, but their genetic variations in the Y chromosome were different. Individuals from the Jiangjialiang belonged to two Y haplogroups, N1 (not N1a or N1c) and N1c. The individuals from the Sanguan are Y haplogroup O3. Two stages of migration are supported. Populations from the West Liao River Valley spread south at about 3000 BC, and a second northward expansion from the Yellow River Valley occurred later (3000–1500 BC).
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