Potatoes – Roots in Peru

A team of scientists, led by Dr David Spooner of the University of Wisconsin-Madison has discovered that all modern cultivated varieties of potatoes can be traced back to a single source. Potatoes grown in Peru,7000 years ago. This discovery was facilitated by DNA analysis of about 360 potatoes. Potatoes were brought back to Spain by the conquistadors around 1570, and spread throughout Europe.