Kristian Kristiansen very briefly showed a map of ancient siberian samples and their corresponding male and female lines in living populations but i cant find out what study hes referencing. I contacted the person that uploaded the videos to youtube but he couldnt help me.

I cant link to the video because i dont have 10 posts yet.

The map is at about 38min.

The video is entitled "Kristian Kristiansen, The Bronze Age expansion of Indo-European Languages" and it was uploaded by Thomas Olander.