Domestication reduces phenotypic plasticity in chaya ( Cnidoscolus aconitifolius (Mill.) I.M. Johnst)

Background: Natural selection optimizes phenotypic plasticity in plants found environmentally variable habitats. However, it is unclear how artificial has affected the of crops. Reduced crop yield often considered a desirable feature cultivated plants; however, limited this and other traits may also affect ability crops to cope with environmental variation.
 Study species: Wild domesticated chaya ( Cnidoscolus aconitifolius (Mill.) I.M. Johnst).
 Question: How domestication vegetative response light environment?
 Methods: Leaf area, leaf perimeter, specific production, trichome density, stem elongation, growth diameter slenderness were measured clones wild plants. These allocated two contrasting treatments: fully exposed sun vs . placement beneath shade cloth. The reaction norms compared between genotypes plants.
 Results: Lower production was observed are associated avoidance syndrome, which evident but not manifested suggests stability.
 Conclusion: Artificial reduces its variation availability.