| In silico analyses of pericycle cell populations reinforce their relation with associated vasculature in Arabidopsis. | |
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MedLine Citation:
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PMID: 22527390 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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In Arabidopsis, lateral root initiation occurs in a subset of pericycle cells at the xylem pole that will divide asymmetrically to give rise to a new lateral root organ. While lateral roots never develop at the phloem pole, it is unclear how the interaction with xylem and phloem poles determines the distinct pericycle identities with different competences. Nevertheless, pericycle cells at these poles are marked by differences in size, by ultrastructural features and by specific proteins and gene expression. Here, we provide transcriptional evidence that pericycle cells are intimately associated with their vascular tissue instead of being a separate concentric layer. This has implications for the identification of cell- and tissue-specific promoters that are necessary to drive and/or alter gene expression locally, avoiding pleiotropic effects. We were able to identify a small set of genes that display specific expression in the phloem or xylem pole pericycle cells, and we were able to identify motifs that are likely to drive expression in either one of those tissues. |
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Authors:
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Boris Parizot; Ianto Roberts; Jeroen Raes; Tom Beeckman; Ive De Smet |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Philosophical transactions of the Royal Society of London. Series B, Biological sciences Volume: 367 ISSN: 1471-2970 ISO Abbreviation: Philos. Trans. R. Soc. Lond., B, Biol. Sci. Publication Date: 2012 Jun |
Date Detail:
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Created Date: 2012-04-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7503623 Medline TA: Philos Trans R Soc Lond B Biol Sci Country: England |
Other Details:
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Languages: eng Pagination: 1479-88 Citation Subset: IM |
Affiliation:
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Department of Plant Systems Biology, VIB, , Technologiepark 927, 9052 Ghent, Belgium. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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