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

查看: 5256|回复: 7


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


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.

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).

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.

發表,閱讀 abbr_9241c9807cd1a56b4c13ec1a662facde.pdf (288.75 KB, 下载次数: 43)
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
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

发表于 2010-2-2 12:34 | 显示全部楼层
发表于 2010-2-2 12:35 | 显示全部楼层
发表于 2010-2-2 13:19 | 显示全部楼层
您需要登录后才可以回帖 登录 | 注册


小黑屋|手机版|Archiver|人类生物学在线 ( 苏ICP备16053048号 )

GMT+8, 2020-11-30 06:01 , Processed in 0.212108 second(s), 19 queries .

Powered by Discuz! X3.4

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表