Contents

31 March 2006
Vol 311, Issue 5769

About The Cover

Cover image expansion

COVER Bundles of rice crop hanging on bamboo sticks in Japan. The earliest farmers unknowingly selected a single base pair mutation in a regulatory gene that substantially reduced grain shattering of the wild progenitor of rice. This led to domestication of the world's leading food crop. See page 1936. Photo: Dex/Getty Images