Both of these genomes were published earlier this year by Skoglund et al. 2014 (see here).
My analysis shows that Ajvide58 is very similar to Mesolithic Swedish forager StoraFörvar11 (see here), and also in part Ancient North Eurasian (ANE). This can be seen in the Principal Component Analysis (PCA) of West Eurasian populations, in which Ajvide58 is shifted east relative to La Brana-1 (which lacks ANE), much like StoraFörvar11.
However, the Eurogenes K15 results suggest to me that the level of ANE in Ajvide58 is lower than in StoraFörvar11. That's because Ajvide58 shows less of the Eastern European component (17.54% vs. 23.23%), and none of the South Asian component. These two components, along with the Amerindian component, dominate MA-1's K15 results (see here).
On the other hand, Gokhem2 appears not to harbor any ANE ancestry; note it's extreme western shift on the PCA of West Eurasia and complete lack of the Eastern Euro, Amerindian and South Asian components in the Eurogenes K15. This is in line with all scientific literature to date, which indicates that ANE was basically missing from Western and Central Europe during the Mesolithic and Neolithic. Indeed, this sample's best matching population in the Oracle are the Sardinians, one of the few present-day European groups with only a trace amount of ANE.
The absence of ANE in Gokhem2 and all other ancient European genomes from a farming context, like Stuttgart and Oetzi, is a very important point. That's because Neolithic farmers largely replaced indigenous hunter-gatherers across most of Europe, including in Scandinavia. As a result, it's probably safe to assume that this process reduced the amount of ANE in Scandinavia to much less than what was carried there by the indigenous foragers (15-19%). However, present-day Scandinavians carry around 17% of ANE, which must mean that there was another migration wave into Northern Europe after the Neolithic, coming from an area rich in ANE. This was probably the Indo-European expansion from the middle Volga region (see here).
Nevertheless, Gokhem2 does carry forager admixture, which can be seen in its non-trivial levels of Eurogenes K15 components strongly associated with indigenous European forager ancestry: North Sea at 16.74% and Baltic at 3.78%. What this suggests is that the admixture event between the Near Eastern and European ancestors of the TRB farmers didn't take place in Scandinavia, but rather somewhere on the European mainland where ANE wasn't present at the time. Interestingly, the Oracle results are in agreement, because, for instance, they feature La Brana-1 but not Ajvide58.
Eurogenes K15 - Ajvide58Principal Component Analyses (PCA) featuring West Eurasian, Eurasian and global reference sets, respectively, show that Ajvide58 is outside the range of modern West Eurasian genetic variation, which is in line with the results of all other ancient European foragers sequenced to date. The cross marks the spot (click on the images to download high resolution PDFs of the plots):
4 Ancestors Oracle results
Eurogenes K15 - Gokhem2
4 Ancestors Oracle results
The Eurogenes K15 and Alexandr Burnashev's 4 Ancestors Oracle are available for use free of charge at GEDmatch for anyone with genotype data from 23andMe and similar personal genomics companies. Look for the Ad-mix option and then the Eurogenes tab.