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Viser innlegg med etiketten autosomal ancient dna chromopainter finestructure Ire8 Ajvude sweden hunter gatherer skoglund 2012. Vis alle innlegg
Viser innlegg med etiketten autosomal ancient dna chromopainter finestructure Ire8 Ajvude sweden hunter gatherer skoglund 2012. Vis alle innlegg

søndag 18. august 2013

Ire8 and modern European variation

The Ire8 individual belonged to a 2800-2000 BC Pitted Ware Culture complex found in Ajvide, Gotland, Sweden. Ire8 belonged to mtDNA hg U4. The PWC was a hunter gatherer culture.

The Ire8 genome had in common 51k SNPs vs the 1000 genome reference individuals. These was as with the earlier analysis for Gok4, Ste7 and La Brañas (se earlier posts)  imputed using BEAGLE with the same reference panel as before using both project individuals and public reference populations. The populations was further LD pruned in PLINK down to 22k SNPs and run through Chromopainter-Finestructure unlinked pipeline. The European panal was extracted from a world Chromopainter run output files resulting in about 19k SNP's for Finestructure analysis.

As the results shows from Finestructure heatmap Ire8 appears to give an clear clustering to a commom Saami-Finnish box, and at the group level appears to be closest to SA1-SA2, Swe-Sam (equal) and Finns3. However we do not see a clear clustering as with the La Braña's vs the Saamis in the tree structure.

It seems from the heatmap coloring like Ire8 appears to have more southern  ancestry than both the Saamis and the Finns suggesting contact with early farmers.

CC Euro Ire8 unlinked 19k

CC Euro Ire8 unlinked detailed 19k

CC Euro PCA unlinked 19k

EDIT 23/9-13