Interesting news item on the BBC web site.
news.bbc.co.uk/1/hi/sci/tech/8467623.stm

Claim is that:
“Most men in Europe can trace a line of descent to early farmers who migrated from the Near East, a study says.”

Link to research paper mentioned in news item
plosbiology.org/article/info%3Adoi%2F10.1371%2Fjournal.pbio.1000285