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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Internal diversification of mitochondrial haplogroup r0a reveals post-last glacial maximum demographic expansions in South Arabia
Molecular Biology and Evolution, Volume 28, No. 1, Year 2011
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Description
Widespread interest in the first successful Out of Africa dispersal of modern humans ∼60-80 thousand years ago via a southern migration route has overshadowed the study of later periods of South Arabian prehistory. In this work, we show that the post-Last Glacial Maximum period of the past 20,000 years, during which climatic conditions were becoming more hospitable, has been a significant time in the formation of the extant genetic composition and population structure of this region. This conclusion is supported by the internal diversification displayed in the highly resolved phylogenetic tree of 89 whole mitochondrial genomes (71 being newly presented here) for haplogroup R0a - the most frequent and widespread haplogroup in Arabia. Additionally, two geographically specific clades (R0a1a1a and R0a2f1) have been identified in non-Arabic speaking peoples such as the Soqotri and Mahri living in the southern part of the Arabian Peninsula where a past refugium was identified by independent archaeological studies. Estimates of time to the most recent common ancestor of these lineages match the earliest archaeological evidence for seafaring activity in the peninsula in the sixth millennium BC. © 2010 The Author.
Authors & Co-Authors
Černý, Viktor
Czech Republic, Prague
Archeologický Ústav av Cr, Praha, V. V. I.
Mulligan, Connie J.
United States, Gainesville
University of Florida
Fernandes, Verónica
Portugal, Porto
Universidade do Porto
Silva, Nuno Miguel
Portugal, Porto
Universidade do Porto
Alshamali, Farida H.
United Arab Emirates, Dubai
Dubai Egovernment, Dubai Police
Non, Amy
United States, Gainesville
University of Florida
Harich, Nourdin
Morocco, El Jadida
Faculté Des Sciences D'el Jadida
Cherni, L.
Tunisia, Tunis
Université de Tunis el Manar, Faculté Des Sciences de Tunis
El Gaaied, Amel Ben Ammar
Tunisia, Tunis
Université de Tunis el Manar, Faculté Des Sciences de Tunis
Al-Meeri, Ali
Yemen, Sana'a
Sana'a University
Pereira, Luísa
Portugal, Porto
Universidade do Porto
Portugal, Porto
Faculdade de Medicina da Universidade do Porto Fmup
Statistics
Citations: 57
Authors: 11
Affiliations: 8
Identifiers
Doi:
10.1093/molbev/msq178
ISSN:
07374038
e-ISSN:
15371719
Research Areas
Environmental
Genetics And Genomics
Study Design
Cross Sectional Study