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How does serrate control arabidopsis shoot development?

ReferenceBB/C506348/1
Principal Investigator / Supervisor Professor Miltos Tsiantis
Co-Investigators /
Co-Supervisors
Institution University of Oxford
DepartmentPlant Sciences
Funding typeResearch
Value (£) 240,244
StatusCompleted
TypeResearch Grant
Start date 01/01/2005
End date 31/07/2008
Duration43 months

Abstract

We will investigate how SERRATE (SE) regulates Arabidopsis shoot development. Shoot development depends upon the continual recruitment of lateral organs from the shoot apical meristem and the replenishment of this cell population. Leaf founder cell recruitment requires the down-regulation of KNOX (KNOTTED 1 like homeobox) expression and subsequent leaf development requires the acquisition of adaxial-abaxial polarity. We have shown that SE controls expression of HD-ZIPIII (homeodomain leucine zipper class three) genes that specify adaxial identity in Arabidopsis leaves. We have also shown that SE controls target genes of KNOX transcription factors that are known to control meristem development. We propose to use molecular genetics to understand the precise contributions of HD-ZIPIII genes and KNOX target genes to SE function. We will also investigate the mechanism by which SE regulates HD-ZIPIII genes. Specifically, we will investigate the hypothesis that SE acts via an endogenous post-transcriptional gene silencing process.

Summary

unavailable
Committee Closed Committee - Genes & Developmental Biology (GDB)
Research TopicsPlant Science
Research PriorityX – Research Priority information not available
Research Initiative X - not in an Initiative
Funding SchemeX – not Funded via a specific Funding Scheme
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