a cereal grain domesticated in Mesoamerica and subsequently spread throughout the American continents.After European contact with the Americas in the late 15th and early 16th century,maize spread to the rest of the world. 起源地 传播路线 FORAGES 玉米在世界的传播途径__________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University  西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu  a cereal grain domesticated in Mesoamerica and subsequently spread  throughout the American continents. After European contact with the  Americas in the late 15th and early 16th century, maize spread to the rest of the world