Ectopic expression of TATA box-binding protein induces shoot proliferation in Arabidopsis.
The TATA box-binding protein (TBP) is an essential component of transcription initiation complexes of all three eukaryotic RNA polymerases. Increasing evidence suggests that the TBP activity and availability may be regulated to precisely control gene transcription and play an important role in cell type-specific regulation. Arabidopsis TBP-2 is up-regulated in apical shoot tissues. Overexpression of TBP-2 in transgenic Arabidopsis induces apical shoot proliferation. The expression of some shoot meristem regulatory genes is altered. These data suggest that the TBP gene dosage and/or expression level may play an important role in controlling shoot production and plant morphology.
Li
Y F
YF
Institut de Biotechnologie de Plante, Université Paris XI, Orsay, France.
Dubois
F
F
Zhou
D X
DX
D017360:Arabidopsis / Q000235:genetics / Q000254:growth & development*; D029681:Arabidopsis Proteins; D001483:Base Sequence; D015152:Blotting, Northern; D004268:DNA-Binding Proteins / Q000235:genetics / Q000502:physiology*; D018506:Gene Expression Regulation, Plant; D018398:Homeodomain Proteins / Q000235:genetics; D018519:Meristem / Q000235:genetics / Q000254:growth & development*; D008969:Molecular Sequence Data; D010641:Phenotype; D010940:Plant Proteins / Q000235:genetics; D030821:Plants, Genetically Modified; D011401:Promoter Regions, Genetic; D018749:RNA, Plant / Q000235:genetics / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D016385:TATA Box / Q000235:genetics; D035181:TATA-Box Binding Protein; D014157:Transcription Factors / Q000235:genetics / Q000502:physiology*
D029681:Arabidopsis Proteins; D004268:DNA-Binding Proteins; D018398:Homeodomain Proteins; C092212:KNAT1 protein, Arabidopsis; D010940:Plant Proteins; D018749:RNA, Plant; C097496:STM protein, Arabidopsis; D035181:TATA-Box Binding Protein; D014157:Transcription Factors