Paternal Control of Embryonic Patterning in Arabidopsis thaliana

Bayer, M., Nawy, T., Giglione, C., Galli, M., Meinnel, T., Lukowitz, W. (March 2009) Paternal Control of Embryonic Patterning in Arabidopsis thaliana. Science, 323 (5920). pp. 1485-1488. ISSN 0036-8075

Abstract

The YODA (YDA) mitogen-activated protein kinase pathway promotes elongation of the Arabidopsis zygote and development of its basal daughter cell into the extra-embryonic suspensor. Here, we show that the interleukin-1 receptor-associated kinase (IRAK)/Pelle-like kinase gene SHORT SUSPENSOR (SSP) regulates this pathway through a previously unknown parent-of-origin effect. SSP transcripts are produced in mature pollen but do not appear to be translated. Instead, they are delivered via the sperm cells to the zygote and the endosperm, where SSP protein transiently accumulates. Ectopic expression of SSP protein in the leaf epidermis is sufficient to activate YDA-dependent signaling. We propose that SSP protein produced from paternal transcripts upon fertilization triggers zygotic YDA activity, providing an essential temporal cue for the regulation of the asymmetric first division.

Item Type:	Paper
Uncontrolled Keywords:	RECEPTOR-LIKE KINASES SEED DEVELOPMENT STOMATAL DEVELOPMENT PROTEIN-KINASES MAPKK KINASE PLANTS ELEMENTS
Subjects:	organism description > plant > Arabidopsis bioinformatics > genomics and proteomics > genetics & nucleic acid processing bioinformatics > genomics and proteomics bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types > enzymes bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types > enzymes > kinase organism description > plant bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types
CSHL Authors:	Bayer, Martin Galli, Mary Lukowitz, Wolfgang Nawy, Tal
Communities:	CSHL labs > Lukowitz lab
Depositing User:	Matt Covey
Date:	13 March 2009
Date Deposited:	20 Feb 2013 16:28
Last Modified:	20 Feb 2013 16:28
Related URLs:	Publisher
URI:	https://repository.cshl.edu/id/eprint/27429

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