A Homolog of NO APICAL MERISTEM Is an Immediate Target of the Floral Homeotic Genes APETALA3/PISTILLATA
Copyright policy )A Homolog of NO APICAL MERISTEM Is an Immediate Target of the Floral Homeotic Genes APETALA3/PISTILLATA
To understand how homeotic genes affect morphogenesis and differentiation, their target genes must be identified. In Arabidopsis flowers, the homeotic protein heterodimer APETALA3/PISTILLATA is necessary for petal and stamen formation. Here, AP3/PI function was put under posttranslational control to analyze its immediate effect on the floral mRNA population, with indirect effects blocked by cycloheximide. Using differential display, a target gene of AP3/PI was identified (NAP:NAC-LIKE, ACTIVATED BY AP3/PI), which is homologous to genes required for meristem establishment and separation of floral organs. The expression pattern of NAP and the phenotypes caused by its misexpression suggest that it functions in the transition between growth by cell division and cell expansion in stamens and petals.
- California Institute of Technology United States
580, Homeodomain Proteins, Transcriptional Activation, 570, Base Sequence, Sequence Homology, Amino Acid, Biochemistry, Genetics and Molecular Biology(all), Arabidopsis Proteins, Meristem, Molecular Sequence Data, Arabidopsis, Genes, Homeobox, Chromosome Mapping, Gene Expression, MADS Domain Proteins, Genes, Plant, Receptors, Glucocorticoid, Amino Acid Sequence, RNA, Messenger, Plant Proteins, Transcription Factors
580, Homeodomain Proteins, Transcriptional Activation, 570, Base Sequence, Sequence Homology, Amino Acid, Biochemistry, Genetics and Molecular Biology(all), Arabidopsis Proteins, Meristem, Molecular Sequence Data, Arabidopsis, Genes, Homeobox, Chromosome Mapping, Gene Expression, MADS Domain Proteins, Genes, Plant, Receptors, Glucocorticoid, Amino Acid Sequence, RNA, Messenger, Plant Proteins, Transcription Factors
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