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Originally Posted by
Tomenable
Also Bronze Age Trzciniec culture DNA from Eastern Poland (and probably also from neighbouring countries) will be published soon, but it will be part of another paper. AFAIK, there is a lot of R1a (typically Balto-Slavic subclades) from Trzciniec culture, as well as one sample of R1b-U152. I think that the R1b-U152 singleton was there due to mixing between Trzciniec and Unetice.
Interesting stuff. So this means either the Germans of Eastern Europe made a small Y DNA impact or were Trziniec descendants(R1a) speaking a Scandinavian-derived(I1, R1b-U106, R1a-Z284) language. Also it would make sense there was sometype of migration from the South up(proto Balto Slavic) into the Northern Baltic Coast and Finland. This is because modern Balts and Finns definitly aren't a Corded Ware, WHG mixture. They have extra MN which could have only come from down south.