Bulgarian Genetic Links To Hittites And Trojans?

The question of Hittite origins is a central unresolved in Indo-European linguistics which makes this hint notable. The Trojans are widely thought to have been speakers of sister language to Hittite.

But we have results from the Ezero culture, from Southeastern Bulgaria, which is from the early Bronze Age and which seems to connect the people of this culture with the future Hittites and Trojans. This has been confirmed by archeology many times and has been known for at least half a century. But now we see the genetic parallels between the two. Some of these ancient groups from the Bronze Age in one way or another have survived to this day in our country Bulgarians, as we also carry a certain amount of blood and genes from these same people, perhaps in the range of between 5 and 10%, which connects us with the Hittites, ancient Anatolia and the Trojans. . . . one of the tribes of the Yamna culture seems to have strayed and arrived in the Balkans instead of going to India. And so by chance, because archaeologists and geneticists have chosen between 260 burial mounds from this period, they have chosen only 3-4 and have come across exactly this extremely ancient group, which is from the time before the Indo-European group was divided into Iranians, Indians and Slavs, they were still one people at the time with the same genomes. And yes, one of these groups is among what we call Thracian tribes, but these are not Thracians. 

Via Eurogenes.

Wikipedia has this to say about the archaeological culture in question:

The Ezero culture, 3300—2700 BC, was a Bronze Age archaeological culture occupying most of present-day Bulgaria. It takes its name from the Tell-settlement of Ezero. 

Ezero follows the copper age cultures of the area (Karanovo VI culture, Gumelniţa culture, Kodzadjemen culture and Varna culture), after a settlement hiatus in Northern Bulgaria. It bears some relationship to the earlier Cernavodă III culture to the north. Some settlements were fortified. 

The Ezero culture is interpreted as part of a larger Balkan-Danubian early Bronze Age complex, a horizon reaching from Troy Id-IIc into Central Europe, encompassing the Baden of the Carpathian Basin and the Coţofeni culture of Romania. According to Hermann Parzinger, there are also typological connections to Poliochne IIa-b and Sitagroi IV. 

Agriculture is in evidence, along with domestic livestock. There is evidence of grape cultivation. Metallurgy was practiced. 

Within the context of the Kurgan hypothesis, it would represent a fusion of native "Old European culture" and intrusive "Kurgan culture" elements. It could also represent an Anatolian-influenced culture, either coming from Anatolia (in Renfrew's hypothesis), or heading to Asia Minor.