Genetic identification of Slavs in Migration Period Europe using an IBD sharing graph

[Dušan]

Among the oldest individuals from the Slavic IBD cluster there are R9673 and R6759 from Viminacium:

SRB_Viminacium:R9673,0.136588,0.126941,0.090132,0.072675,0.044624,0.030678,0.005405,0.014999,-0.005931,-0.025695,-0.004709,-0.008992,0.016055,0.014175,-0.013572,0.014717,0.026598,-0.004814,-0.001383,0.007379,0.00025,-0.008779,0.002095,-0.005784,-0.000958

SRB_Viminacium:R6759,0.124067,0.119832,0.09164,0.101422,0.047701,0.038208,0.01034,0.017768,0.001023,-0.039363,-0.004547,-0.019033,0.038057,0.03592,-0.019137,0.003447,0.014994,-0.007095,-0.00088,0.003126,-0.007736,-0.005935,0.003328,-0.007109,-0.002634

From what century are these 2 samples?

They seems too northern.



Distance to: SRB_Viminacium:R6759
0.03157195 Latvian
0.03182402 Lithuanian_SZ
0.03627177 Lithuanian_RA
0.03687694 Lithuanian_PZ
0.04131605 Lithuanian_VZ
0.04255829 Lithuanian_VA
0.04363796 Estonian
0.04517937 Russian_Pskov
0.04666200 Lithuanian_PA
0.05328828 Belarusian

Distance to: SRB_Viminacium:R9673
0.03203751 Lithuanian_VA
0.03423692 Lithuanian_PA
0.03571393 Lithuanian_RA
0.03604847 Russian_Pskov
0.03857698 Lithuanian_SZ
0.03931255 Estonian
0.04093936 Ukrainian_Rivne
0.04111409 Russian_Kaluga
0.04130789 Latvian
0.04154476 Russian_Tver

[Lemminkäinen]

We don't really know if this Poprad sample is Vandal or not.

I am modelled by genetic companies as a mix of Belarusian and Scandinavian. My DNA Tribes for example:

It is possible to make models using different admixture groups, whatever they have. Maybe there was also NW Germans or not. Most important is to know the fit, which tells more than modelling distance. Modelling distance tells how good the fit is by used populations, but not how well the target is modelled by admixture populations. DnaTribes obviously doesn't give any quality indicators.