کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4760427 1422179 2017 46 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mitochondrial DNA analysis of Tunisians reveals a mosaic genetic structure with recent population expansion
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Mitochondrial DNA analysis of Tunisians reveals a mosaic genetic structure with recent population expansion
چکیده انگلیسی
Tunisia is a country of great interest for human population genetics due to its strategic geographic position and rich human settlement history. These factors significantly contributed to the genetic makeup of present-day Tunisians harbouring components of diverse geographic origins. Here, we investigated the genetic structure of Tunisians by performing a mitochondrial DNA (mtDNA) comparison of 15 Tunisian population groups, in order to explore their complex genetic landscape. All Tunisian data were also analysed against 40 worldwide populations. Statistical results (Tajima's D and Fu's FS tests) suggested recent population expansion for the majority of studied populations, as well as showed (AMOVA test) that all populations were significantly different from each other, which is evidence of population structure even if it is not guided by geographic and ethnic effects. Gene flow analysis revealed the assignment of Tunisians to multiple ancestries, which agrees with their genetic heterogeneity. The resulting picture for the mtDNA pool confirms the evidence of a recent expansion of the Tunisian population and is in accordance with a mosaic structure, composed by North African, Middle Easterner, European and Sub-Saharan lineages, resulting from a complex settlement history.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: HOMO - Journal of Comparative Human Biology - Volume 68, Issue 4, August 2017, Pages 298-315
نویسندگان
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