If the Etruscans came from Anatolia, how could they not have had some R1b ?
How would the Greeks have spread R1b-M269 to central and northern Italy ?
Another possibility is that the R1b-M269 in central and northern Italy came with the Trojans, who according to the legend were the ancestors of the Romans. Ancient Troy might well have been founded by early Indo-Europeans after they invaded Southeast Europe between 4200 BCE and 3000 BCE. The Indo-European Ezero culture, which expanded over most of modern Bulgaria, lasted from 3300 to 2700 BCE. Troy was founded circa 3000 BCE. The timing and location match. This corresponds also to the golden age of the Maykop culture (3700-2500 BCE) on the other side of the Black Sea.
I had originally postulated five years ago that Maykop people founded Troy, and that the seat of the Maykop culture eventually moved to Troy. During that period, the bulk of R1b Indo-Europeans from the eastern and northern shore of the Black Sea migrated to the western shore and Southeast Europe.
The Hittites appear in northern Anatolia around 2000 BCE and spoke a language related to Trojan (Luwian). If the Hittites were Indo-Europeans and R1b, then in all logic Trojans were also R1b people. Since R1b-M269 (or actually its subclade L23, not tested in this study) is the dominant Indo-European variety of R1b in Anatolia, Greece and the Balkans, there have high chances that the Trojans belonged to that subclade.
Another candidate for the Trojan haplogroup is R1b-U152 itself, as U152 is generally associated with the expansion of the Hallstatt and La Tène cultures, which suddenly started around 1200 BCE, just after the destruction of Troy. What if the Trojans founded the Hallstatt culture and its Italian offshoot, the Villanovan culture ?
The only way to know for sure whether the Trojans were M269, L23 or U152 is to test ancient DNA from the Troy region dating from sometime between 3000 and 1200 BCE. What is certain is that U152 is present in Anatolia today, but it could be the result of back migrations of the Celts and the Romans.