Was low atmospheric CO2a limiting factor in the origin of agriculture?

Late Pleistocene and early Holocene climate and the beginnings of cultivation in northern Syria

(2009) George Willcox et al.   HOLOCENE

The nature of selection during plant domestication

(2009) Michael D. Purugganan et al.   NATURE

Earliest domestication of common millet (Panicum miliaceum) in East Asia extended to 10,000 years ago

(2009) H. Lu et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Starch grain and phytolith evidence for early ninth millennium B.P. maize from the Central Balsas River Valley, Mexico

(2009) D. R. Piperno et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

The Domestication Process and Domestication Rate in Rice: Spikelet Bases from the Lower Yangtze

(2009) D. Q Fuller et al.   SCIENCE

Response of wild C4crop progenitors to subambient CO2highlights a possible role in the origin of agriculture

(2008) JENNIFER CUNNIFF et al.   GLOBAL CHANGE BIOLOGY

Population-Based Resequencing Reveals That the Flowering Time Adaptation of Cultivated Barley Originated East of the Fertile Crescent

(2008) H. Jones et al.   MOLECULAR BIOLOGY AND EVOLUTION

The complex origins of domesticated crops in the Fertile Crescent

(2008) Terence A. Brown et al.   TRENDS IN ECOLOGY & EVOLUTION