Transcriptional program controlled by the floral homeotic geneAGAMOUSduring early organogenesis

• DOI: 10.1242/dev.01600
• Publication Date: 2005-01-06T01:15:41Z
• Authors: Concepción Góme...; Stefan de Folter; Maria Manuela R. ...; Gerco C. Angenent; Robert Sablowski
• Keywords: Agamous; Organogenesis; MADS-box; Ultrabithorax

Floral organs, whose identity is determined by specific combinations of homeotic genes, originate from a group undifferentiated cells called the floral meristem. In Arabidopsis, gene AGAMOUS (AG) terminates meristem activity and promotes development stamens carpels. To understand program expression activated AG, we followed genome-wide during early stamen carpel development. The AG target genes included most for which mutant screens revealed function downstream AG. Novel targets were validated in situ hybridisation binding to vitro vivo. Transcription factors formed large fraction targets, suggesting that organogenesis, much genetic concerned with elaborating patterns. results also suggest other proteins it interacts (SEPALLATA3, APETALA3, PISTILLATA) are coordinately regulated positive-feedback loop maintain their own expression, activates biosynthesis gibberellin, has been proposed promote shift differentiation.