The ULT1 and ULT2 trxG Genes Play Overlapping Roles in Arabidopsis Development and Gene Regulation.
Résumé
We demonstrate that the Arabidopsis trxG genes ULTRAPETALA1 (ULT1) and ULT2 together restrict shoot and floral stem cell activity and establish apical-basal gynoecium polarity. The proteins physically associate and regulate meristem and flower transcription factor genes, indicating that plant trxG factors control key developmental targets.