Positional Signaling Mediated by a Receptor-like Kinase in
                    Arabidopsis

Su-Hwan Kwak; Ronglai Shen; John Schiefelbein

doi:10.1126/science.1105373

journal article Feb 18, 2005

Positional Signaling Mediated by a Receptor-like Kinase in Arabidopsis

Su-Hwan Kwak Ronglai Shen

John Schiefelbein

Science Vol. 307 No. 5712 pp. 1111-1113 · American Association for the Advancement of Science (AAAS)

View at Publisher Save 10.1126/science.1105373

Abstract

The position-dependent specification of root epidermal cells in
Arabidopsis
provides an elegant paradigm for cell patterning during development. Here, we describe a new gene,
SCRAMBLED
(
SCM
), required for cells to appropriately interpret their location within the developing root epidermis.
SCM
encodes a receptor-like kinase protein with a predicted extracellular domain of six leucine-rich repeats and an intracellular serine-threonine kinase domain. SCM regulates the expression of the
GLABRA2, CAPRICE, WEREWOLF
, and
ENHANCER OF GLABRA3
transcription factor genes that define the cell fates. Further, the
SCM
gene is expressed throughout the developing root. Therefore, SCM likely enables developing epidermal cells to detect positional cues and establish an appropriate cell-type pattern.

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We thank M. M. Lee for technical assistance and helpful discussions J. Fuzak and C.-Y. Hung for assistance and Y. Lin M. Simon C. Bernhardt S. Clark and J. Li for helpful discussions. We acknowledge the Salk Institute Genomic Analysis Laboratory and the Arabidopsis Biological Resource Center (Columbus OH) for providing the scm-2 line. This work was supported by the Post-doctoral Fellowship Program of Korea Science and Engineering Foundation (KOSEF) (S.-H.K.) and by a grant from the NSF (IBN-0316312).

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Metrics

188

Citations

16

References

Details

Published: Feb 18, 2005
Vol/Issue: 307(5712)
Pages: 1111-1113

Authors

S

Su-Hwan Kwak

Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109–1048, USA.

R

Ronglai Shen

Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109–1048, USA.

J

John Schiefelbein

Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109–1048, USA.

Cite This Article

Su-Hwan Kwak, Ronglai Shen, John Schiefelbein (2005). Positional Signaling Mediated by a Receptor-like Kinase in Arabidopsis. Science, 307(5712), 1111-1113. https://doi.org/10.1126/science.1105373

Positional Signaling Mediated by a Receptor-like Kinase in Arabidopsis

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