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蓝海人类学在线 Ryan WEI's Forum of Anthropology

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中東地區的Y單倍型組成

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发表于 2010-1-4 12:44 | 显示全部楼层 |阅读模式
Saudi Arabian Y-Chromosome diversity and its relationship with nearby regions

Khaled K Abu-Amero, Ali Hellani, Ana M González, Jose M Larruga, Vicente M Cabrera and Peter A Underhill
BMC Genetics 2009, 10:59doi:10.1186/1471-2156-10-59

Abstract
Background

Human origins and migration models proposing the Horn of Africa as a prehistoric exit route to Asia have stimulated molecular genetic studies in the region using uniparental loci. However, from a Y-chromosome perspective, Saudi Arabia, the largest country of the region, has not yet been surveyed. To address this gap, a sample of 157 Saudi males was analyzed at high resolution using 67 Y-chromosome binary markers. In addition, haplotypic diversity for its most prominent J1-M267 lineage was estimated using a set of 17 Y-specific STR loci.
Results

Saudi Arabia differentiates from other Arabian Peninsula countries by a higher presence of J2-M172 lineages. It is significantly different from Yemen mainly due to a comparative reduction of sub-Saharan Africa E1-M123 and Levantine J1-M267 male lineages. Around 14% of the Saudi Arabia Y-chromosome pool is typical of African biogeographic ancestry, 17% arrived to the area from the East across Iran, while the remainder 69% could be considered of direct or indirect Levantine ascription. Interestingly, basal E-M96* (n = 2) and J-M304* (n = 3) lineages have been detected, for the first time, in the Arabian Peninsula. Coalescence time for the most prominent J1-M267 haplogroup in Saudi Arabia (11.6 ± 1.9 ky) is similar to that obtained previously for Yemen (11.3 ± 2) but significantly older that those estimated for Qatar (7.3 ± 1.8) and UAE (6.8 ± 1.5).
Conclusion

The Y-chromosome genetic structure of the Arabian Peninsula seems to be mainly modulated by geography. The data confirm that this area has mainly been a recipient of gene flow from its African and Asian surrounding areas, probably mainly since the last Glacial maximum onwards. Although rare deep rooting lineages for Y-chromosome haplogroups E and J have been detected, the presence of more basal clades supportive of the southern exit route of modern humans to Eurasian, were not found.

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发表于 2010-1-5 20:27 | 显示全部楼层
倒是又不少东亚类型.  又见M73,不过不知道是不是引用以前的数据.
发表于 2010-2-2 08:59 | 显示全部楼层
中东地区的Y单倍群真够杂的,除了D,M等少数几个以外,几乎涵盖了世界上大部分的单倍群。
发表于 2010-2-2 11:42 | 显示全部楼层
疁殇1958 请修改你的头像。
发表于 2010-2-2 12:24 | 显示全部楼层
J1*是中东阿拉伯地区主成分,也门72.58%的J1*,看来他们是最有代表性的阿拉伯人。伊朗R 25%左右,比想象中少,J 35%左右,比想象中多。
反恐精英 发表于 2010-1-4 04:58 PM


阿联酋有O1。照理他们在选样本的时候不会选相貌上明显是东亚黄种人的阿拉伯籍人,那这位O1应该是古代就在阿拉伯世界混的弟兄。
发表于 2010-2-2 12:34 | 显示全部楼层
这位阿拉伯世界混的弟兄可能是布里亚特蒙古人
发表于 2010-2-2 12:35 | 显示全部楼层
不一定
可能是马来msl;PP
发表于 2010-2-2 13:19 | 显示全部楼层
难不成是怛罗斯战役中被俘虏的近2万唐军的后裔?
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