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Rudd, S. ; Frisch, M.* ; Grote, K.* ; Meyers, B.C.* ; Mayer, K.F.X. ; Werner, T.*

Genome-wide in silico mapping of scaffold/matrix attachment regions in Arabidopsis suggests correlation of intragenic scaffold/matrix attachment regions with gene expression.

Plant Physiol. 135, 715-722 (2004)
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We carried out a genome-wide prediction of scaffold/matrix attachment regions (S/MARs) in Arabidopsis. Results indicate no uneven distribution on the chromosomal level but a clear underrepresentation of S/MARs inside genes. In cases where S/MARs were predicted within genes, these intragenic S/MARs were preferentially located within the 5'-half, most prominently within introns 1 and 2. Using Arabidopsis whole-genome expression data generated by the massively parallel signature sequencing methodology, we found a negative correlation between S/MAR-containing genes and transcriptional abundance. Expressed sequence tag data correlated the same way with S/MAR-containing genes. Thus, intragenic S/MARs show a negative correlation with transcription level. For various genes it has been shown experimentally that S/MARs can function as transcriptional regulators and that they have an implication in stabilizing expression levels within transgenic plants. On the basis of a genome-wide in silico S/MAR analysis, we found a significant correlation between the presence of intragenic S/MARs and transcriptional down-regulation.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 2004
HGF-reported in Year 0
ISSN (print) / ISBN 0032-0889
e-ISSN 1532-2548
Quellenangaben Volume: 135, Issue: 2, Pages: 715-722 Article Number: , Supplement: ,
Publisher American Society of Plant Biologists (ASPB)
Reviewing status Peer reviewed
PubMed ID 15208419
Erfassungsdatum 2004-12-31