This grave is classified as part of the Corded Ware Culture in the Taubertal, and two paternal lineages are what we have come to expect as the near-exclusive Bell Beaker lineage M269.
That we'd see Beaker lineages in a Corded Ware communities is not surprising; they married well and often. But to have no meaningful ancestry in line with most Beakers and at this age certainly raises the eyebrows. Actually, a few things raise the eyebrows. Apparently, more L51 lineages are on the way that are further East and pretty early. We'll see.
Update, adding this "Das schnurkeramische Gräberfeld von Lauda-Königshofen im Taubertal"
See Deutschordensmuseum Bad Mergentheim
|"Althäuser Hockergrab" from Althausen'
We've seen a lot of jumping to conclusions with previous ancient individuals where there was obvious cultural and genetic admixture. But if it turns out that we begin seeing more of this in the right contexts and much earlier, then one of the oldest questions regarding the origin of the Beaker phenomenon may have an answer pretty soon.
|(Holger Uwe Schmitt)
"Diet and Mobility in the Corded Ware of Central Europe" Sjogren, Price, Kristiansen, 2015
"The Stone Age Plague and Its Persistence in Eurasia:"