Watch out that this is a map of all I2a. The variety found in Spain, Sardinia and most of western Europe is I2a1, while in eastern Europe almost 100% is I2a2. There is therefore no connection between them.
this spread of I2a1 actually resembles the most what I would expect to see from Visigoth's imprint...
I am complete amateur here, but I can imagine that it is theoretically possible that I2a1 was carried to Iberia by Goths and Vandals.
In those times, if your tribe is moving away, you as individual do not want to stay behind... which explains why there is no I2a1 in previous settlements of Goths and Vandals in east Europe...
There are two results for I1 Serbia, and they show 5-8%.
Do you have some data for Bulgaria? Again, maps are not that reliable.
what I meant is that hotspot of I1 looked more as Bulgaria on that map...
I tend to write and post without reading, and than to read posted and edit (because in preview mode spaces between lines are lost and I need to keep adding them) ...thing is I had last night weird issue (perhaps due to different ip address) that I could not edit my post and it was invisible until approved by admin...
btw. looking at Bulgarian familytree dna project, I see only 1 I1 out of 75 samples... and one more that is just haplogroup I. to compare, there are 11 I2a2 samples (1 of them in Macedonia and 1 in Greece Macedonia)
(22 markers are E-V13, 3 G2a & 3 G, 9 are R1a (2 of them from Macedonia), 5 are R1b - M269, there is some J as well)
to conclude, you are right, hotspot of I1 is in Serbia not in Bulgaria
btw. looking at spread of I1 in Balkans
we can see that it seems to come from Germany rather than from areas around Black sea and it also shows no spread in directions of Goths movements (though the fast movements can never be seen on haplogroup maps, only the ones where settlements spread slowly)
I can imagine that it origins mostly from Gepids in Serbia and Langobards in Austria/Slovenia/west Pannonia... in fact, we know from history that in 630 Ad in Pannonia Byzantian troops found no traces of Avars, only Gepids...we also know that part of Gepids did move towards Italy... so the hotspot near north Italy may as well be Gepids too...
Then in 375 they had to submit to the Huns along with their Ostrogoth overlords, becoming the favored Hun vassals. Under their king, Ardaric, Gepid warriors joined Attila the Hun's forces in the Battle of Chalons (the "Catalaunian fields") in Gaul (451). On the eve of the main encounter between allied hordes, the Gepids and Franks met each other, the latter fighting for the Romans and the former for the Huns, and seem to have fought one another to a standstill, with 15,000 dead reported by Jordanes, the main source for the events.
Such loyalties were personal bonds among kings, and after Attila's death in 453, the Gepids and other people allied to defeat Attila's horde of would-be successors, who were dividing up the subjugated peoples like cattle, and led by Ardaric, they broke the Hunnic power in the Battle at the River Nedao in 454:
...a most remarkable spectacle, where one might see the Goths fighting with pikes, the Gepidae raging with the sword, the Rugii breaking off the spears in their own wounds, the Suevi fighting on foot, the Huns with bows, the Alani drawing up a battle-line of heavy-armed and the Heruli of light-armed warriors. (Jordanes, l.259)
After the victory they finally won a place to settle in the Carpathian Mountains.
The Gepidae by their own might won for themselves the territory of the Huns and ruled as victors over the extent of all Dacia, demanding of the Roman Empire nothing more than peace and an annual gift as a pledge of their friendly alliance. This the Emperor freely granted at the time, and to this day that race receives its customary gifts from the Roman Emperor. (Jordanes, l.262)
Not long after the battle at the Nedao the old rivalry between the Gepids and the Ostrogoths spurred up again and they were driven out of their homeland in 504 by Theodoric the Great.
They reached the zenith of their power after 537, settling in the rich area around Belgrade. For a short time, the city of Sirmium was the center of the Gepid State and the king Cunimund minted golden coins in it. In 546 the Byzantine Empire allied themselves with the Lombards to expel the Gepids from this region. In 552 the Gepids suffered a disastrous defeat from Alboin in the Battle of Asfeld and were finally conquered by the Lombards in 567.
Alboin had a drinking-cup made from the skull of Cunimund, which occasioned his death later in Italy, at the hands of an assassin sent by Rosamund, Cunimond's daughter.
Many Gepids followed Alboin to Italy (see Paulus Diaconus), but many remained. In 630, Theophylact Simocatta reported that the Byzantine Army entered the territory of the Avars and attacked a Gepid feast, capturing 30,000 Gepids (they met no Avars). Recent excavation by the Tisza River at Szolnok brought up a Gepid nobleman from an Avar period grave who was also wearing Turkic-Avar pieces next to the traditional Germanic clothes in which he was buried.
Have you ever heard of Moesian Goths?
Were Ostrogoths mentioned in any other regions during their inhabitance of Moesia?
according to wikipedia, Moesogoths who origin from Ostrogths have migrated from Thrace all the way to Jutland... http://en.wikipedia.org/wiki/Moesogoths
ok, that is somewhat better, but I would still expect much larger impact in Iberia... so I do think that I1 might have not really been dominant in Goths...You forced me to serach for Visigoths.
This study http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1181996/ showed 3.1% I1 in Catalonia and this one http://www.sciencedirect.com/scienc...944b9488099473deba71c9678116122d&searchtype=a showed 8.96% of I1+I2b1 in Midi-Pyrenees (France). Much of it could be from Visigoths.
Btw I was inprecise when talking about Visigoths in Serbia. I had I1 as a whole in mind when I wrote that.
My opinion is that I1 in Serbia is more from Ostrogoths than Visigoths.
under assumption that I1 came with Goths, it is hard to say who contributed more Visigoths or Ostrogoths... Moesigoths were Ostrogths, but they moved away to Jutland and during Hunish conquest Visigoths settled area... on other hand Ostrogoths are said to have settled in Prevalitania (Montenegro) and we do know that not so small number of people in Serbia origin from Montenegro and east Hercegovina....