Let's compare these Slavic Y-DNA haplogroups posted above to Y-DNA haplogroups of western and northern neighbours of Slavic countries:Not really, Sir:paratom said:Check R1a1 distribution among Hungarians. They are allegedly more Slavs than Poles are.
Map of Slavic languages in Europe in % of native speakers (including immigrants) by country:
And Y-DNA haplogroups in Slavic countries (green) and in countries with large Slavic-speaking minorities (bright green):
Plus some other countries / ethnic groups which share the same predominant haplogroup for comparison:
As you can see from this data above, the two most typical for Slavic people major Y-DNA haplogroups are R1a and I2.
Also Y-DNA haplogroup E is very frequent among Southern Slavs.
I2 - as can be seen above - is most frequent among Southern Slavs, but also quite frequent among other Slavs.
Division of Germany for west / south / north and east which applies to data posted above, is along these red lines:
This means that "North Germany" as defined here, includes also Lower Saxony, most of which was never inhabited by Slavic people.
Taking this into consideration, I am sure that the highest % of "Slavic haplogroups" is not in East Germany, but in North-East Germany.