You can relax, I was only answering OlehS in #15.
I'm always relaxed =)))
The Volga trade-route has been a through-fare since links between Scandinavia and the Near East were formed millenia ago.
Certainly.
The intrusion of HG I into the Volga trade-route is suggestive, nothing more than that.
Of course. But unfortunately that is not obvious from the Eupedia R1a map, where the Volga trade route goes through the 50+ zone, not through the 40+ zone. I thought that's what had prompted Oleh's question. Though frankly I don't see this as very significant foer the reason stated earlier.
The intrusion of N1c1 from East Scandinavia is also suggestive of diffusion but not on the same scale as HG I. R1a is high in Ukraine no matter where you look, the decrease however small is suggestive as it is positioned along the Volga trade-route.
Since I belong to the I2a tribe (with a U5a1 motherline), our R1a assimilants are only of peripheral interest =)))
Carry on, and thanks again.