A mixed origin made maize successful (IMAGE) University of California - Davis Caption Maize (corn) is one of the world's most important staple crops and has great cultural significance for indigenous peoples in the Americas. New work by Jeffrey Ross-Ibarra at UC Davis and international colleagues shows how maize was domesticated from two wild varieties. Credit Sasha Bakhter, UC Davis Usage Restrictions May be used with acknowledgement. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.