The cytokinin type-B response regulator PtRR13 is a negative regulator of adventitious root development in Populus

ABSTRACT: Adventitious root formation at the base of plant cuttings is an innate de novo organogenesis process that allows massive vegetative propagation of many economically and ecologically important species. The early molecular events following shoot excision are not well understood. Using whole-genome microarrays, we detected significant transcriptome remodeling during 48 hours following shoot removal in Populus softwood cuttings in the absence of exogenous auxin, with 27% and 36% of the gene models showing differential abundance between 0 and 6 hours, and 6 and 24 hours, respectively. During these two time intervals, gene networks involved in protein turnover, protein phosphorylation, molecular transport and translation were among the most significantly regulated. Transgenic lines expressing a

ORGANISM(S): Populus tremula x Populus alba

SUBMITTER: Christopher Dervinis 

PROVIDER: E-GEOD-15049 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress