#416156

Anonymous

Macedonians, Croatians, Serbians, Russians, Polish.

Graphs below are from two recent articles on Armenian and Caucasian population in which various target populations were used.

Title : Regionalized autosomal STR profiles among Armenian groups suggest disparate genetic influences (2011) R.K Lowry et al
Publisher: American Journal of Physical Anthropology, Volume 146, Issue 2, pages 171–178, October 2011

Abstract

In addition, to determine whether genetic differences among these four Armenian populations are the result of differential affinities to populations of known historical influence in Armenia, we utilize 27 biogeographically targeted reference populations for phylogenetic and admixture analyses.

Method See the label on the graph

Relevant abbreviations. Iran (IRN), Turkey (TUR), Armenian (ARV, GRD, SAS, VAN, ), Transylvania (TVA), Greece (GRE), Macedonia (MAC), Croatia (CRO), Serbia (SRV), Russia (RUS), Poland (POL), Belgium (Bel). Population codes and scientific study references can be found in : http://img59.imageshack.us/img59/5115/ajpa.pdf

[img width=700 height=474]http://img15.imageshack.us/img15/9883/lowery.png” />

Turkish, Armenian and Iranian populations form a single cluster. I am suprised to see Gergians cluster with European populations, while Transylvanian and Romanian populations to be amongTurkish, Armenian and Greeks. This is only a single study in which a certain methodological procedure was utilised. The results could had revealed a different picture if other methods were used to analyse autosomal data.

Bulgarians, Ukrainians, Belarusians, Russians

Title: The Caucasus as an Asymmetric Semipermeable Barrier to Ancient Human Migrations (2012)  Yunusbayev, Rootsi, Behar et. al
Publisher: Molecular Evolution and Biology, Oxford journals

Abstract
We report a synthesis of autosomal, Y chromosome, and mitochondrial DNA (mtDNA) variation in populations from all major subregions and linguistic phyla of the area.

Method
Principal component analysis (PCA) of autosomal data for diagram 1; ADMIXTURE analysis of autosomal data at K=7 for Diagram 2.

Relevant abbreviations. French Basques (FrB), North Italians (NIt), Tuscans (Tu), Bulgarians (Bul), Romanian (Rmn), French (Fre), Ukraine (Ukr), Belarus (Blr), Lithuania (Lit), Russia (Rus), Mordva (Mrd), Turkey (Tur).

Diagram 1:  Plot of the first and second components of the PCA of the Caucasus and neighboring populations based on autosomal data, with the clustering of populations approximating geography. The thick lines denote probable directions of movements of interrupted between the North Caucasus and Eastern Europe.

(See attachment for larger resolution)

[img width=700 height=440]http://img541.imageshack.us/img541/892/yusun.png” />

Diagram 2: Population structure inferred by ADMIXTURE analysis of the autosomal data at K = 7. Each individual is represented by a vertical (100%) stacked column of ancestry probabilities in the seven constructed ancestral populations.

[IMG]http://img716.imageshack.us/img716/6092/yusun1.png” />