Article
Tissue-specific expression of Populus C19 GA 2-oxidases differentially regulate above- and below-ground biomass growth through control of bioactive GA concentrations.
The New phytologist - 1 Nov 2011
Gou Jiqing, Ma Cathleen, Kadmiel Mahita, Gai Ying, Strauss Steven, Jiang Xiangning, Busov Victor
Abstract excerpt
• Here, we studied the poplar C(19) gibberellin 2-oxidase (GA2ox) gene subfamily. We show that a set of paralogous gene pairs differentially regulate shoot and root development. • PtGA2ox4 and its paralogous gene PtGA2ox5 are primarily expressed in aerial organs, and overexpression of PtGA2ox5 produced a strong dwarfing phenotype characteristic of GA deficiency. Suppression of PtGA2ox4 and PtGA2ox5 led to...
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