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重建喜马拉雅临近地区人口史

Human Genetics (2018). First Online: 22 January 2018
https://doi.org/10.1007/s00439-018-1867-2

Reconstructing the demographic history of the Himalayan and adjoining populations
Rakesh Tamang, Gyaneshwer Chaubey, ...Richard Villems, Kumarasamy Thangaraj


Abstract

The rugged topography of the Himalayan region has hindered large-scale human migrations, population admixture and assimilation. Such complexity in geographical structure might have facilitated the existence of several small isolated communities in this region. We have genotyped about 850,000 autosomal markers among 35 individuals belonging to the four major populations inhabiting the Himalaya and adjoining regions. In addition, we have genotyped 794 individuals belonging to 16 ethnic groups from the same region, for uniparental (mitochondrial and Y chromosomal DNA) markers. Our results in the light of various statistical analyses suggest a closer link of the Himalayan and adjoining populations to East Asia than their immediate geographical neighbours in South Asia. Allele frequency-based analyses likely support the existence of a specific ancestry component in the Himalayan and adjoining populations. The admixture time estimate suggests a recent westward migration of populations living to the East of the Himalaya. Furthermore, the uniparental marker analysis among the Himalayan and adjoining populations reveal the presence of East, Southeast and South Asian genetic signatures. Interestingly, we observed an antagonistic association of Y chromosomal haplogroups O3 and D clines with the longitudinal distance. Thus, we summarise that studying the Himalayan and adjoining populations is essential for a comprehensive reconstruction of the human evolutionary and ethnolinguistic history of eastern Eurasia.



https://link.springer.com/article/10.1007/s00439-018-1867-2
非常棒的最新资料,可读价值颇高~
物格而后知至,知至而后意诚,意诚而后心正,心正而后身修,身修而后家齐,家齐而后国治,国治而后天下平...
本帖最后由 imvivi001 于 2018-1-31 13:19 编辑

羌巴的Y类型更加有特色, P* 颇高。另外,提醒特别注意羌巴 和夏巴族的NO,或许为NO的发源地提供了某种提示:
族群    n  C    D D1a1 D1a2a F*GH H* H1a J2 K* L N NO O O2a O3 O3a2c1 P* Q R R1a R2 T UD(F?)
藏族 109 1.8 1.8 21.1 24.8   --- -      0.9 0.18 - -1.8 - 2.8 0.9 0.9 33.0    - 0.9 -  5.5  -  0.9 0.9
羌巴  50   -    2  2.4    16     4.0   - - - -    6   -  8  - 2   - - -              12  14  -  -  8    2   -  2
夏巴  54 3.7  13  13   16.7   - - -7.4 3.7 1.9  - - -  5.6  -  -  1.9    27.8   -  3.7 - 1.9
物格而后知至,知至而后意诚,意诚而后心正,心正而后身修,身修而后家齐,家齐而后国治,国治而后天下平...
st1a.jpg
2018-1-31 13:35
st5.jpg
2018-1-31 13:35
55819
cpan0256 发表于 2018-1-31 13:35
羌巴人居住在海拔5千米的高原上,算得上是‘高大上’民族了。

另外,从目前来看,y-P*人群居住的地方都是比较偏远的,显示他们的先祖可能是旧石器之后未能顺利转型的族系
物格而后知至,知至而后意诚,意诚而后心正,心正而后身修,身修而后家齐,家齐而后国治,国治而后天下平...

cpan0256 发表于 2018-1-31 13:35
缅甸人的东亚成分(EAS+EAN)明显远低于居住在印度东北部的naga族,可能与他们混有较多的土著ASE血统有关。而印度naga人是何时迁移去的印度,也是一个有趣的课题,感觉历史不是很悠久,不然不会这么少的ASE成分~
物格而后知至,知至而后意诚,意诚而后心正,心正而后身修,身修而后家齐,家齐而后国治,国治而后天下平...
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