[Effects of Cu2+ stress on DNA polymorphism of genome in foxtail millet of different genotypes].

Cu2+ is an essential element for plant growth, and is one of the major elements in the environment. In order to investigate the physiological characteristics and geno-toxicity effects of foxtail millet (Setaria italica (L) Beauv) under different Cu2+ stress, four genotypes of foxtail millet (Zhaogu, Huangmi, An06, D2-8) from Shanxi, China were cultivated for 30 days in a pot filled with soil of with different mass concentrations of Cu2+ (0, 50, 100, 200, 400 mg.kg-l).