Molecular basis for the specification of floral organs by APETALA3 and PISTILLATA.

ABSTRACT: How different organs are formed from small sets of undifferentiated precursor cells is a key question in developmental biology. To understand the molecular mechanisms underlying organ specification in plants, we studied the function of the homeotic selector genes APETALA3 (AP3) and PISTILLATA (PI), which control the formation of petals and stamens during Arabidopsis flower development. To this end, we characterized the activities of the transcription factors that AP3 and PI encode throughout flower development by using perturbation assays as well as transcript profiling and genomewide localization studies, in combination with a floral induction system that allows a stage-specific analysis of flower development by genomic technologies. We discovered considerable spatial and temporal differe

SUBMITTER: Wuest SE 

PROVIDER: S-EPMC3421202 | biostudies-literature | 2012 Aug

REPOSITORIES: biostudies-literature