source?
only source that speaks in details about the settlement of Slavs on Balkan is De administrando imperio... it says that they have settled desolated lands...
and it speaks of Serbs and Croats not of Slavs in general...
Haplogroup E comes from assimilated Tribali and Dardanians...
part of it was already absorbed by Scordisci....
regarding idea that Scordisci did carry some Ewith them.....
south and east Germany and west of Czech republic is where Serbs come from to Balkan in 6th century (probably after living there for relatively short period) ..in east and south Germany E1b1 is 7.5% and 8% (larger than in Croatia)...Czech republic has 6% (same as Croatia), and for Serb related E1b1 one should search only in west Bohemia...of course I do not claim that much of this E origin from Serbs... but some E might have been carried from Germany to Serbia (by Serbs) and other way around (by Scordisci)...
http://www.eupedia.com/europe/europe...logroups.shtml
in fact, looking at Czech republic
http://onlinelibrary.wiley.com/doi/1...20500/abstract
we can see that percentage of I2a-Din dramatically rises (from 4.1% to 9.2% and 14,6%) and E percentage dramatically drops (from 8.2% to 4.2% and 1.5%) in area (west parts of Bohemia) from where Serbs come to Balkan...
indicating that haplogroup E in Serbs is more or less exclusively obtained after settling in Serbia, while I2a-Din was carried by them...
but if Serbs did not carry any significant percentage of haplogroup E to Balkan, how come there is so big difference in haplogroup E in modern Serbs and Croats?
in Croatia and Bosnia haplogroup E is much less than in Serbia, FYRM and Montenegro because
Illyrians were not haplogroup E people while
Tribali and Dardanians were E dominant people....
Bosnia is like one big wood with lot of mountains....its so easy for any population to survive there by hiding... but we are led to believe that Illyrians were wiped out from Bosnia and Croatia.... and if pockets of them survived and if their language was like Albanian, where are loan words from Albanian in Croatia and Bosnia? there are no loan words from Albanian there...but Albania is full of Slavic place names and Albanian is full of Slavic words...
this can be interpreted only by population speaking a language alike to Slavic living there before Albanians...