Neat News 556 (added 2017-07-09)
Domestication of Wheat

Public Domain by National Plant Germplasm System (USDA/ARS)
By genetic sequencing the changes in wheat have been detected that occurred in its domestication about 10,000 years ago in the so-called Fertile Crescent. In particular, the genes have been isolated that make spikes to shatter in wild wheat, but to remain intact in domesticated wheat.