L’allogamie and la domestication des céréales: L’exemple du maïs (zea mays l.) and du mil (pennisandum americanum l.) k. schum

Abstract

Self-pollination seems to be advantageous for cereal domestication. It is easy to understand why traditional fanners cultivating open pollinated cereals are worrying about the success of their Maize or Pearl Milland sowings of. The study of genandic components associated to domestication allows to explain the occurence of several out pollinated species among the diploid cereals. However why do we find in Maize and Pearl Milland such well organized inheritance of domestication syndrom cancelling out their expected vulnerability under the huge overflow of pollens from their ancestry and neighbor wild populations? Several explanations are suggested, one of them founded on a second order selectionist process can be mathematicaly tested. Actualy we are deeply impressed by the evolutive power of outpollination when associated to efficient organisations of linkage. © 1986 Taylor & Francis Group, LLC.