Genetics of cereal adaptation to the man-made habitat uri icon

abstract

  • The wild progenitor species of all cereals are known with various degrees of ceninty.Wild and cultivated taxa of the same species cross and their hybrids are generally fertile. Thisallows for a study of the genetics of domestication. A survey of the literature. however.reveals few such studies. The adaptation to disturbed habitats is genetically complex. andcolonizing ability seems to have been a prerequisite for successful domestication. Natural seeddispersal is controlled by one to several linked genes, and behaves genetically as an overalldominant over loss of efficient seed dispersal mechanisms. Apical dominance, synchronizedtillering. and increase in fecundity are complex, recessive genetic traits associated with cerealdomestication. Racial evolution resulted from conscious selection by man and involvesnumerous loci

publication date

  • 1989