Advances in Genetic Engineering of Ornamental Plant

The cloning and applications of the plant anthocyanin biosynthetic genes,flower organ identity genes and flower senescence genes were reviewed .Plant anthocyanin biosynthetic pathways and involved enzymes were well characterized.Many structural and regulatory genes controlling flower color were cloned.Using direct gene introduction,anti sense RNA and co-suppression techniques,some flower plant cultivars with different colors were obtained.Flower pattern can be changed from modifying the genes controlling flower organ identity.The cloned genes opened up a wide range of application in plant science research,such as create cultivars with new flower color,new leaf color,new flower form,and postpone cutting flower period.