人为压力下的生物进化：育种 农作物的进化历程 墨西哥野生玉米 Balsas teosinte,a large wild grass that grows in the Central Balsas River Valley of Mexico.Maize domesticated from Balsas teosinte more than 8700 years ago.Balsas teosinte, a large wild grass that grows in the Central Balsas River Valley of Mexico. Maize domesticated from Balsas teosinte more than 8700 years ago. 人为压力下的生物进化：育种 墨西哥野生玉米 农作物的进化历程