Transcriptional regulation of co-expressed microRNA target genes

    Authors

    Y. Wang; X. M. Li;H. Y. Hu

    Comments

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    Abbreviated Journal Title

    Genomics

    Keywords

    MicroRNA; Target gene; Co-expression; Co-regulation; Cis-regulatory; module; STATISTICAL SIGNIFICANCE; CAENORHABDITIS-ELEGANS; EXPRESSION; MODULES; IDENTIFICATION; PREDICTION; GENOME; ARABIDOPSIS; REPRESSION; DISCOVERY; Biotechnology & Applied Microbiology; Genetics & Heredity

    Abstract

    MicroRNAs play pivotal roles in gene regulation. Despite various research efforts on microRNAs, how microRNA target genes are transcriptionally regulated and how the transcriptional regulation of microRNA target genes relates to that of the microRNA genes are not well studied. By investigating the transcriptional regulation of microRNA target genes, we found that different groups of target genes of the same microRNA are co-expressed under different conditions, and these groups rarely overlap with each other for the majority of microRNAs. We also discovered that co-expressed microRNA target genes are often co-regulated, and different groups of target genes of the same microRNA are often regulated differently. In addition, we observed that transcription factors regulating a microRNA gene often regulate its target genes. Our study sheds light on the regulation of microRNA target genes, which will facilitate the prediction of microRNA target genes and the understanding of the transcriptional regulation of microRNA genes. (C) 2011 Elsevier Inc. All rights reserved.

    Journal Title

    Genomics

    Volume

    98

    Issue/Number

    6

    Publication Date

    1-1-2011

    Document Type

    Article

    Language

    English

    First Page

    445

    Last Page

    452

    WOS Identifier

    WOS:000297664700006

    ISSN

    0888-7543

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