Constitutive co-suppression of the GA 20-oxidase1 gene in tomato leads to severe defects in vegetative and reproductive development

Transcriptional and hormonal regulation of petal and stamen development by STAMENLESS, the tomato (Solanum lycopersicum L.) orthologue to the B-class APETALA3 gene

“…GA-deficient tomato mutants gib-1 and ga-2 exhibit abnormal flowers with arrested anther development (Nester and Zeevart, 1988; Jacobsen and Olszewski, 1991). The silencing of GA20-oxidase 1 was also shown to be detrimental for pollen production (Olimpieri et al , 2011). PA involvement in flower development was also reported in the tomato pat mutant, which exhibits aberrations in stamen development and female fertility and showed changes in the different PA contents relative to the WT (Antognonia et al , 2002).…”

Identification of floral genes for sex determination in Calamus palustris Griff. by using suppression subtractive hybridization

“…It is involved in catalyzing gibberellins. The suppression of GA20ox1 in tomato revealed deteriorating effects to the pollen development (Olimpieri et al, 2011). Another gibberellin-related gene that was found in the SSH library was giberellin-regulated protein 10, which belonged to the hormone-regulated gene family.…”

Expression Vector Construction and Genetic Transformation of <i>Paeonia lactiflora</i> Gibberellin 20-Oxidase Gene

“…For example, overexpression of AtGA20ox improved the growth of the transgenic populous by enlarging leaves, thickening stems and elongating the trunks [9]; and silencing of GA20ox from tomato pro-*These authors contribute equally. duced vegetative defect and retarded the growth [10]. For another, overexpression of GA20ox from cotton improved the stem growth and reduced the growth of leaves and roots of transformed poplar [11].…”