File:Multidimensional scaling analysis of Horn of Africa populations.png

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English: Multidimensional scaling analysis shows the great genetic diversity within the Horn of Africa (HOA). We plotted the first two dimensions of a multidimensional scaling analysis of pairwise identity by state across all study populations. (A) The HOA populations are broadly scattered between out-of-African populations and the bulk of sub-Saharan African populations along the first dimension. Some clusters of HOA individuals are much closer to the main sub-Saharan African cluster, while others are much closer to North African and Arabian clusters. (B) In this plot, we zoom in on the HOA samples and leave out all other populations. While the region as a whole covers a broad swath of the first MDS dimension, most individual populations are tightly clumped, with groups separated by language. The Nilo-Saharan speaking Gumuz are on the far left, the Omotic speaking Ari are in the center, and the Cushitic and Semitic speaking populations are on the right.
Date Published: June 12, 2014
Source Hodgson JA, Mulligan CJ, Al-Meeri A, Raaum RL (2014) Early Back-to-Africa Migration into the Horn of Africa. PLoS Genet 10(6): e1004393. doi:10.1371/journal.pgen.1004393 http://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1004393
Author Jason A. Hodgson, Connie J. Mulligan, Ali Al-Meeri, Ryan L. Raaum
Other versions
Admixture plot of Horn of Africa
Admixture plot of Horn of Africa in more broder context
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