Morphological and Genetic Studies on Weeping Tree Architecture in Ornamental Plants

Tree architecture is considered as an important ornamental trait.Through molecular genetics, a more rapid breeding process of selecting upright or weeping tree form can benefit the development of ornamental horticulture.This review introduced these two major atypical tree architectures, associated with the discovery in both genetic and hormonal potential link at molecular level in previous studies, with the aim of providing theoretical basis for tree architecture improvement in ornamental.