Moderne hunderaser genetisk "disconnected" fra sine forfedre

[Hermes]

Cross-breeding of dogs over thousands of years has made it extremely difficult to trace the ancient genetic roots of today's pets, according to a new study led by Durham University.

http://www.sciencedaily.com/releases/2012/05/120521163845.htm

"Ironically, the ubiquity of dogs combined with their deep history has obscured their origins and made it difficult for us to know how dogs became man's best friend.

"All dogs have undergone significant amounts of cross-breeding to the point that we have not yet been able to trace all the way back to their very first ancestors."

"Both the appearance and behavior of modern breeds would be deeply strange to our ancestors who lived just a few hundred years ago."

"And so far, anyway, studying modern breeds hasn't yet allowed us to understand how, where and when dogs and humans first started this wonderful relationship."