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The role of Iran as a center of origin for domesticated cereals has long been debated. High stratigraphic resolution and rich archaeological remains at the aceramic Neolithic site of Chogha Golan (llam Province, present-day Iran) reveal a sequence ranging over 2200 years of cultivation of wild plants and the first appearance of domesticated-type species. The botanical record from Chogha Golan documents how the inhabitants of the site cultivated wild barley (Hordeum spontaneum) and other wild progenitor species of modern crops, such as wild lentil and pea. Wild wheat species (Triticum spp.) are initially present at less than 10% of total plant species but increase to more than 20% during the last 300 years of the sequence. Around 9800 calendar years before the present, domesticated-type emmer appears. The archaeobotanical remains from Chogha Golan represent the earliest record of long-term plant management in Iran. [ABSTRACT FROM AUTHOR]

The article presents a letter to the editor in response to the article "Emergence of agriculture in the foothills of the Zagros Mountains of Iran," by Simone Riehl and team in the July 5, 2013 issue, as well as a reply by the authors.