K = 14 admixture analysis of Scythians and Sarmatians

Below is a plot for a K = 14 admixture analysis that includes eight new Scythian and Sarmatian genomes. The table above the plot gives some information for these samples.

The sample labeled Samara Scythian IA, which has appeared in previous plots, is I0247, from Samara, Russia. It is dated to 380–200 BC, and it belonged to the Caucasoid Y haplogroup R1a1a1b2a2a-Z2123 and the Mongoloid mitochondrial haplogroup G2a4.

The plot shows that the three Scythian and Sarmatian samples from the western part of the Eurasian Steppe had small amounts of the plain yellow Southern Mongoloid component and the light yellow Northern Mongoloid component, while the six Scythian samples from the eastern part of the Eurasian Steppe had much larger amounts of those components. The eastern Scythians of the Pazyryk culture generally had more Mongoloid admixture than those of the earlier Zevakino-Chilikta and Aldy-Bel cultures of the eastern region. The table below gives the Mongoloid admixture percentages for the nine samples.

                           Southern Northern Total
Early Sarmatian IA I0575       3.58     3.32  6.91
Early Sarmatian IA I0574       3.26     2.71  5.97
Samara Scythian IA I0247       5.19     3.12  8.31
Zevakino Scythian IA IS2       7.35    13.62 20.97
Zevakino Scythian IA Ze6      26.01    25.81 51.82
Aldy-Bel Scythian IA I0577     7.25    13.91 21.15
Aldy-Bel Scythian IA I0576    12.10    22.90 35.00
Pazyryk Scythian IA I0562     23.94    24.01 47.95
Pazyryk Scythian IA I0563     30.20    28.05 58.25
Sample  Region   Culture            Date BC
I0575   Western  Early Sarmatian    500–100
I0574   Western  Early Sarmatian    500–100
IS2     Eastern  Zevakino-Chilikta  900–600
Ze6     Eastern  Zevakino-Chilikta  900–600
I0577   Eastern  Aldy-Bel           700–500
I0576   Eastern  Aldy-Bel           700–500
Ι0562   Eastern  Pazyryk            400–200
I0563   Eastern  Pazyryk            400–200

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