Harvest selection and domestication in seed plants

In recent years research has been directed to looking for the origins of agriculture and to finding the causes of the transition from hunting and gathering to food production and the domestication of plants and animals. From these studies it has become apparent first, that the transition occurred several times and in several places in prehistory; secondly, that the mechanisms underlying the transition are quite complex; and thirdly that the transition occurred in some regions but not in others, in spite of the prevalence of similar environmental conditions and patterns of exploitation.