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Cited by 448

The DOI matches its Crossref record; 52 of the 52 references it cites were found in a registry or an index.

Regulation of Arabidopsis shoot apical meristem and lateral organ formation by microRNA miR166g and its AtHD-ZIP target genes

Open access
Williams, Leor, Grigg, Stephen P., Xie, Mingtang, Christensen, Sioux, Fletcher, Jennifer C.·2005·Development

Abstract

Plant development is characterized by precise control of gene regulation,leading to the correct spatial and temporal tissue patterning. We have characterized the Arabidopsis jabba-1D (jba-1D) mutant,which displays multiple enlarged shoot meristems, radialized leaves, reduced gynoecia and vascular defects. The jba-1D meristem phenotypes require WUSCHEL (WUS) activity, and correlate with a dramatic increase in WUS expression levels. We demonstrate that the jba-1D phenotypes are caused by over-expression of miR166g,and require the activity of the RNase III helicase DCL1. miR166gover-expression in jba-1D plants affects the transcripts of several class III homeodomain-leucine zipper (AtHD-ZIP) family target genes. The expression of PHABULOSA (PHB), PHAVOLUTA(PHV) and CORONA (CNA) is significantly reduced in a jba-1D background, while REVOLUTA (REV)expression is elevated and ATHB8 is unchanged. In addition, we show that miR166 has a dynamic expression pattern in wild-type and jba-1D embryos. Our analysis demonstrates an indirect role for miRNAs in controlling meristem formation via regulation of WUSexpression, and reveals complex regulation of the class III AtHD-ZIPgene family.

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Metadata

Authors
Williams, L., Grigg, S. P., Xie, M., Christensen, S., & Fletcher, J. C.
Venue
Development
Published
2005-08-15
Volume
132
Issue
16
Pages
3657-3668
ISSN
  • 0950-1991 (ISSN-L)
  • 1477-9129
OpenAlex
W2031387306
Cited by
448
References
52
FWCI
30.97
Type
journal article
Language
en
Open access
bronze

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