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复旦系论文:高频的Q-M120族群是华夏族和汉族形成的奠基族群

 文质君 2019-10-10

2019年6月17日人类生物学年鉴杂志(JournalAnnals of Human Biology )发表了复旦系博士们合写的论文:

Phylogeography of Y-chromosome haplogroup Q1a1a-M120, a paternal lineage connecting populations in Siberia and East Asia: 

https://www./doi/abs/10.1080/03014460.2019.1632930?journalCode=iahb20

论文基于许多古DNA和现代的QM120样本,终于更新认识,认为高频的Q-M120族群是华夏族和汉族形成的奠基族群。

(论文研究中用到的古今DNA样本分布,红圈是古DNA地点)

论文主要结论:

1. 摘要部分:

Results: We revealed an ancient connection of this lineage with populations in Siberia. However, this paternal lineage experienced an in-situ expansion between 5,000 and 3,000 years ago in northwestern China. Ancient populations with high frequencies of Q-M120 were involved in the formation of ancient Huaxia populations before 2,000 years ago; this haplogroup eventually became one of the founding paternal lineages of modern Han populations.

结果:我们揭示了这一血统与西伯利亚人口的古老联系。然而,这种父系在5000年至3000年前在中国西北部经历了一次原位扩张。2000年以前,高频率Q-M120的古群体参与了华夏古群体的形成,这一单倍型群体最终成为现代汉族群体的创始父系之一

2 文中部分

Q-M120 as a founding paternal lineage of Han populations The distribution and phylogeographic pattern of Q-M120 in this study suggested that this haplogroup is a founding paternal lineage of modern Han populations. Haplogroup Q-M120 initially diverged 7,000 years ago and experienced a significant expansion between 5,000 years and 3,000 years before present. All available ancient DNA from Q-M120 individuals is from northwest China and several locations outside of China. 

Q-M120作为汉族族群的一个始祖父系:其分布和系统地理格局表明,该单倍型群是现代汉族族群的始祖父系。单倍型群Q-M120在7000年前开始分化,在5000年到3000年前经历了显著的扩张。从Q-M120个体中获得的所有古DNA都来自中国西北部和中国以外的几个地方。(小编注:今天QM120人口主要集中于汉族

3 结尾部分

Our results are consistent with the theory of Zhao et al. (2014) that ancient populations with the dominant lineage Q-M120 were involved in the formation of ancient Huaxia populations at least 3000 years ago (around the Zhou Dynasty of China) (Zhao et al. 2014). Since then, haplogroup Q-M120 became part of paternal gene pool of Han populations. Furthermore, three sub-branches of Q-M120 (F30415, FGC14753, and SK1928) were also among xizango-Burman populations. The precise role of these sub-branches during the formation of xizango-Burman populations is yet to be discovered. 

我们的研究结果与赵等人(吉林大学赵永斌等人)的理论是一致的(2014)。至少3000年前(中国周朝前后),以Q-M120为主的古种群参与了华夏古种群的形成(赵等,2014年)。此后,单倍型群Q-M120成为汉族人群父系基因库的一部分。此外,Q-M120的三个分支(F30415、FGC14753和SK1928)也存在于藏缅人口中。这些分支在藏缅人口形成过程中的确切作用尚未被发现。

论文作者:
Na Sun,
Peng-Cheng Ma,
Shi Yan, 严实
Shao-Qing Wen, 文少卿
Chang Sun,
Pan-Xin Du,
Hui-Zhen Cheng,
Xiao-Hua Deng,
Chuan-Chao Wang,王传超
Lan-Hai Wei 韦兰海

这篇论文没有再出现复旦金力和李辉的名字。

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